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The impact of production methods and row orientation on carrot quality in the case of various cultivars
65-69Views:135Carrot is a wellknown and favoured, really important vegetable. Carrot’s cultivation is important, although its growing field has been reduced in last few years. The suitable cultivar and landstructure are essential to produce good quality carrot. The ridge cultivation is widely spread on plasted soils. At this type of cultivation relationship between line orientations and carrot quality is less studied. That is the reason we tried to examine in our experiment the relationship between ridge highness and line orientation (N-S and E-W) and carrot’s morphological features at different genotipes. The experimental was settled in the Experimental Garden of the University of Debrecen on limy chernozem soil by plain, raised bed and ridge cultivation in 2013. In the experiment we examined four longgrowing cultivars (Danvers 126, Fertődi vörös, Rekord, Chantenay). The sowing was at 24th April. The harvest was at 15th October, 2013. In the multi factorial (type of cultivation, line orientation, cultivar) experimental we explained the effect of treatments on carrot root shoulder diameter and root weight.
In our experiment we stated that line orientation had no significant effect on shoulder diameter at different cultivations. The only exception is Fertődi vörös which has reached the biggest shoulder diameter (5 cm <) at N-S direction on raised bed. By examining the carrot rootweight we stated that they were higher in raised bed and ridge cultivation than in plain cultivation with the exception of one cultivar (Chantenay). This carrot had found ideal environment for growing between each cultivation conditions. That is why we can state that if you grow carrot on plasted soil and there is no possibility to make a ridge, use short, tapered and rounded ending root type for successful growing.
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The economic structure and the tertiary ecucation of the function of transformation Hungary 19th and 20th century of in economic integration periods
115-122Views:109Knowledge-intensive businesses sectoral nature of the operation and the specific attributes of the innovation life cycle processes, different needs and different needs induce. These features can also differentiate time that their activities when and what type of resources they require. The availability of capacity in terms of a network co-benefits for those businesses that are creating the possibility that such resources are available to ensure the realization of goals that are not individually owned. These factors and the availability of local availability is also motivated by the small and medium enterprises willingness to cooperate.
Regional supply of resources necessary for the operation of the business of insurance, universities play a key role. The functions of universities in innovation as a business service can be understood as an activity that mediate high added value to other organizations and companies. Questions arise as to the innovative nature of the business industry and sector weights would differentiate whether the R&D&Iintensive areas of expertise.
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The effect of feeding different glycerol sources on the performance of lactating sows
99-103Views:166Glycerol is a by-product of the biodiesel industry and it might be a good alternative to moderate the energy deficiency of sows during the lactation period. Preliminary experiments were carried out to test the effect of a powder, solid based “food grade” glycerol source with 72.9% glycerol content (Trial 1) and a liquid “feed grade” glycerol source with 86% glycerol content (Trial 2) on the performance of lactating sows and their litters. Trial 1 was conducted with 5 Hungarian Large White×Hungarian Landrace sows/treatment (313±24.9 kg) and Trial 2 with 12–12 DanAvl (323±17.0 kg) sows and their litters/treatment. Neither the solid, powder based glycerol (Trial 1), nor the liquid glycerol source (Trial 2) had significant effect on the feed intake, reduction in live weight and back-fat thickness, and weaning-tooestrus interval (p>0.05) of lactating sows. In Trial 2, on the 14th, 21st and 27th days of lactation the milk samples were collected and it was found that 50 kg/t glycerol decreased the protein content of milk samples (p<0.05). Glycerol supplementation had no effect on dry matter, fat, lactose content of milk samples (p>0.05). In Trial 2, no significant difference was found between control and experimental sow groups in triglyceride concentration of blood samples and in the activity of liver enzymes (ALT, AST, GGT; p>0.05), but the concentration of plasma glucose and cholesterol increased tendentiously (p<0.10).
Based on our preliminary results, it can be concluded that additional dose trials are needed to perform in order to study the effect of glycerol supplement on milk production and on metabolic processes of lactating sows.
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Investigation of the effect of allithiamine-enriched feed on the poultry gut microbiome composition and resistome
149-155Views:93Over the past 20–25 years, the poultry industry has evolved into a specific protein production system. However, the stress resulting from intensive rearing practices has led to numerous negative consequences, making the optimisation of livestock gut microbiome composition crucial for mitigating these effects. Advancements in modern molecular biology methods have brought attention to the impacts of nutrients on gut microbiota. In our study, we extensively investigated the changes induced by feed formulations rich in phytonutrients on the gastrointestinal microbiota of livestock using targeted 16S rRNA amplicon sequencing. Our objective is to examine how the developed feed prototype affects the composition of core microbiomes in raised poultry, community diversity, and the resilience of complex microbial networks. We seek correlations between biological livestock and environmental samples to identify which community constituents, in what proportions and occurrences, may play a role in the development of specific diseases. Based on our measurement results, it can be asserted that allithiamine positively modulated "beneficial" community constituents. Beyond the impact of allithiamine-enriched feed rich in phytonutrients, the composition of the microbial community in the poultry gastrointestinal tract is significantly influenced by the age of the birds. Furthermore, due to the presence of multi-drug-resistant pathogens in environmental samples from livestock facilities, appropriate transmission risk management measures are of paramount importance.
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Timing it right: The Measurement and Prediction of Flowering
17-22Views:63Although the model described here was developed from research in controlled environments, there is now considerable evidence that in can be applied to a very wide range of natural environments in several species. Multi-locational trials augmented by successional sowing and, if considered necessary, supplementary illumination in the field to increase daylength, can be used to estimate the values of the model coefficients: (1) to characterize germplasm collections and so predict flowering behaviour elsewhere; (2) for interpreting and understanding crop adaptation; and (3) for genetic analysis of photoperiod sensitivity. We do not yet know whether the model has any contribution to make to the understanding of the biochemical mechanisms of photoperiod and temperature responses, but at the very least, it should provide the basis for indicating the most appropriate environmental conditions, genotypes and physiological stage of the plants most suitable for such investigations.
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Interactions of the scientific results and practice in the biodiesel plant in Mátészalka, in the eastern tri-border area of Hungary
23-27Views:84This study summarises the observations about the operation of the first Hungarian model-like biodiesel plant (which has a producer background). In order to efficiently and safely operate the applied technology and to produce biodiesel that conforms to international standards, it was indispensable to apply the scientific results in practice and to develop a cooperation with the University of Debrecen (Centre of Agricultural Sciences and Engineering). The biodiesel plant has a significant importance from the aspects of the Eastern tri-border area and the North Great Plain region.
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Regional interactions of bioenergy utilization
159-162Views:60The backwardness of the rural areas compared to the cities poses a problem all over Europe. In Hungary, a relatively small size of the population lives in the capital, more than 80% of Hungarians live in rural cities or villages. The tension between the countryside and the cities is rather intensified and the symbiotic correlation would need to be restored. Many people migrate from the countryside, especially young adults, as they have no opportunities to find a job in their hometowns. This phenomenon poses big risks because getting a job is usually difficult everywhere and because fitting into a new environment always involves a lot of difficulties.
Non-renewable energies are restricted and they will not be accessible after reaching a certain limit. People’s everyday activities and the functioning of the economy presuppose the availability of the necessary amount of energy. In the future, a solution that provides the longterm stability of energy for the world will become increasingly necessary. There is a huge potential in bioenergy, more specifically in biomass. The building of biomass plants and putting them into operation creates jobs in the rural spatial environments: a locally available resource that can help in creating the energy safety of the country and the reduction of the dependence on import. The production of energy crops or the crops whose purpose of use is energy could help in strengthening the multifunctional character of agriculture and it can represent a source of income for those living off agriculture under the current uncertain conditions.
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Economic questions of maize production on different soil types
289-292Views:106The requirements and objective of cultivation are in constant change. For example, different cultivation systems are developed for the purpose of soil protection, the preservation of its moisture content and on soils with various precipitation supply or production site conditions. Traditionally, one of the most important cultivation aims is crop needs. Further cost saving in fertilisation and crop protection can only be achieved by reducing the quality and quantity of production or it cannot be achieved at all. Furthermore, the costs can be significantly reduced by means of the rationalisation of cultivation. Energy and working time demand can also be notably reduced if ploughing is left out from the conventional tillage method. The key requirement of economicalness is to perform the cultivation at the optimal date, moisture level and the lowest possible cost.
Within production costs, the cost of cultivation is between 3–17%, while they are between 8–36% within machinery costs. It is the vital condition the usability of each technological method to progressively reduce costs. Our evaluation work was carried out with the consideration of the yield data obtained from cooperating farms and the experiment database of the Institute for Land Utilisation, Regional Development and Technology of the Centre for Agricultural and Applied Economic Sciences of the University of Debrecen. Three technological methods (ploughing, heavy cultivator and loosening tillage) were used on several soil types which differ from in terms of cultivability (chernozem, sandy and sandy clay soils) from the economic/economical aspect. We examined the sectoral cost/income relation of maize production as an indicator plant. The maize price during the analytical period was 45 thousand HUF per t. On chernozem soils, the production of maize can be carried out on high income level, while maize production on sandy soils has a huge risk factor. The role of cultivation is the highest on high plasicity soils, since they have a huge energy
demand and the there is a short amount of time available for each procedure in most cases. -
The past and present of Érmellék wine region
49-52Views:103Érmellék is an area of the Partium. It is situated between Szilágy and Bihar counties and between River Kraszna and Berettyó. Its name is from Ér, the small brook, which crosses the area. Érmellék is famous for its wine production, because its climate is favourable for this kind of trade. Only a few information sheets of the small Partium-belonging micro-region, Érmellék are published nowadays. Érmellék has extremely picturesque architectural wine cellar rows, of which ”szalacsi” wine cellar row (wine cellar row system) with its unique structure consists of about a thousand cellars.
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Phytocoenological researches on the grasslands of the middle and inferior basin of Crişul Negru river
41-45Views:190The meadowlands from the middle and inferior basin of Crisul Negru river form an area with rich flora and vegetation suitable for a complex phytocoenological research and an ecologic and bio-economical study of the floor vegetation.
After conducting a number of 80 phytocoenological surveys on the meadowlands near Apateu and Satu Nou villages (Arad county, Romania), respectively near Cociuba Mare and Mărțihaz villages (Bihor county, Romania) there have been identified a number of fifteen vegetal associations from which one is examined in this work.
The paper presents the hygrophilic association Typhetum latifoliae Lang 1973 on the grasslands of the middle and inferior basin of Crişul Negru river, association classified from the coenotaxonomic point of view in the alliance Phragmition communis Koch 1926, order Phragmitetalia Koch 1926, class Phragmitetea australis R. Tüxen et Preising 1942.
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Effect of the plant density on different maize (Zea mays L.) hybrids yields and leaf area index (LAI) values
51-56Views:148We have investigated the plant number reactions of three maize hybrids of various genotypes in a small-plot field experiment. The plant numbers were 50, 70 and 90 thousand ha-1, while the row distances were 45 and 76 cm. The experiment was set on the Látókép Experimental Farm of Centre for Agricultural Sciences of the University of Debrecen in four replications on calcareous chernozem soil.
The assimilation area and the leaf area index have important role in development of the crop yield. The studied three different genotype maize hybrids reached its maximum leaf area index at flowering. The maximum leaf area index increased linearly with increasing plant density. The season-hybrids reached less yield and leaf area index. According to our experimental results, we have concluded that with the decrease of the row spacing, the yield increased in the average of the hybrids. The studied hybrids reached the maximum yield at 70 and 90 plants ha-1 plant density. We determined the optimal plant number that is the most favourable for the certain hybrid under the given conditions.The higher plant density was favourable at 45 cm row spacing than 76 cm. The hybrids reached the maximum grain yield at 45 cm row spacing between 76 712–84 938 plants ha-1, while the optimum plant density at 76 cm row spacing changed between 61 875–65 876 plants ha-1.
The leaf area index values between the applied plant density for the flowering period (July 1, 24), we defined a significant differences. In the archived yields were significant differences at the 45 cm row spacing between 50 and 70, 90 thousand ha-1 plant density, while the number for the 76 cm row spacing used did not cause a significant differences in the yield. There were significant differences between the examined hybrids of yields.
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Optimising intensive apple crown pruning by IT improvements
165-173Views:156Prunig is a key element of fruit production technology and is affected by a number of subjective factors. Putting research findings into practice is often hindered by bad and harmful habits that make plantations and trees heterogenious in terms of growth and fruiting features, which can even lead to significant financial losses. Having identified this challenge, in this publication we aim to present some guidelines for those who are open to new ways and believe in the power of innovation. The 21st century is undoubtedly the century of unstoppable IT innovations filtering through into our everyday lives. The fact that our project is based on IT innovations is not only essential due to the subject matter itself but also because it makes it easier to address younger generations. Whichever tool they choose to use (smartphone, tablet, laptop), all registered students have access to our web contents, making it super easy for them to practice pruning techniques. Students don’t just read texts in our training materials but have access to a pool of pictures and images to illustrate the different procecces and phenomena. All the different phrases have explanations against them, so anyone can understand the ins and outs of why and how to prune or remove the different crown parts (5-year-old and above crown parts, 2–4-year old parts or 1-year-old parts) to achieve specific results, whether it be apple, pear or cherry trees etc. Our database comprises thousands of pictures that will walk you through the entire fruit tree pruning process, without you even having to leave your desk. There is an old proverb that also applies to pruning: „The wise man learns from the mistakes of others, the fool has to learn from his own”. Our program aims to help students by presenting a number of bad examples along with their corrections as well as photos of ideal ways to prune multiple different crown shapes. Using our web-based tool eliminates time and space limitations, i.e. you can access our interactive contents to gain or extend your pruning skills, irrespective of the pruning time and location.
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Preparatory study for carbon sequestration modelling of agroforestry systems in Hungary: The assessment of the yield class distribution of windbreaks
73-78Views:38The escalating carbon dioxide emissions leading to global climate change are acknowledged as a paramount environmental challenge in the twenty-first century. The significance of land use systems in stabilising carbon dioxide levels and enhancing carbon sink potential has gained noteworthy attention from both the scientific and political communities. The Intergovernmental Panel on Climate Change emphasises that agroforestry systems present vital prospects for synergising climate change adaptation and mitigation efforts, offering substantial technical mitigation potential. Windbreaks are well-known agroforestry systems in Hungary and form an important part of agricultural landscapes. The improved agroforestry subsidy system in our country makes it relevant to model the carbon sequestration potential of windbreaks. In the framework of the ForestLab project we plan to develop a carbon sequestration model specific for Hungarian agroforestry systems. In this study, as a preparatory step of the model development, we assessed the yield class distribution of Hungarian windbreaks by tree species group and identified variables that had significant effect on yield class based on the data of the National Forestry Database. Our results show that among the examined effects the most important predictor of the yield class of windbreaks was the tree species group, followed by the thickness of the productive soil layer and the hydrology of the site.
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Dietary fibre prevalence and its role in human nutrition
9-13Views:225The role of dietary fibre and its impact on health is increasing. It is worth noting that their beneficial effects on the body are becoming more widely known, but their consumption is still below the recommended daily intake from food. Dietary fibre, as a class of compounds, includes a mixture of plant carbohydrate polymers, both oligosaccharides and polysaccharides. Dietary fibre has been linked to a number of diseases, as its consumption can reduce the risk of cardiovascular disease and type 2 diabetes. They influence the composition of the bacteria present in the human gut. Consuming the right quantity and quality of dietary fibre can play a role in the prevention of certain types of cancer. Nowadays, it is common to produce various fibre-enriched foods, called functional foods, because of the beneficial effects they have previously had on the body. In the present work we want to give a general description of dietary fibre and its role in the body.
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Grain yield and quality of maize hybrids in different FAO maturity groups
126-131Views:68An improvement in the quality of maize grain by increasing the level of components responsible for its biological value is possible
by using genetic means. However, a change in the genotype, together with improving the nutrient properties of the grain, also has some
adverse consequences connected with a fall in yield and in resistance to diseases.
Field experiments were conducted during three years (2003, 2004and 2005) to evaluate environmental effects on grain yield and
quality responses of maize hybrids. Twenty one hybrids of various maturity groups (FAO 150-400) were planted to achieve an optimum
(60-70 000 plants per hectare) plant populations and grown under the medium-N (80 kg N ha-1) fertilization. Environmental conditions
significantly affected maize hybrid responses for grain yield, starch, oil and protein contents, and consequently, starch, oil and protein
yields per hectare. Hybrids of flint type, which have a short vegetation period, had high protein and oil content but the yield averages
were low due to the slower rate of starch incorporation. Hybrids of the dent type have a longer growing season and more intense
carbohydrate accumulation, but low protein and oil contents. In wet years there was a higher rate of starch accumulation, while dry
years are favorable for protein and oil accumulation. Positive correlation existed between starch content and grain yield and 1000-
weight as well as between oil content and volumetric weight among tested hybrids. Negatively correlation existed between grain oil and
starch content as well as between oil content and grain yield and 1000-weight. Thus, end-users that require high quality maize may need
to provide incentives to growers to off set the negative correlation of grain yield with oil and protein content. -
Bioreactors in Hungary
248-254Views:113The transformation and utilization of organic materials must occur with the highest degree of environmental conformity. This conformity – in accordance with the guiding principles of the European Union – will result in a new economic and systematical approach. We can establish the profitability of projects with the utilization of surplus effects which characterize multiple-product lines.
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Effect of season and sowing time on the moisture loss dynamics and yield of maize
255-265Views:163The effect of sowing date on maize development and yield was studied in field experiments. The experiment was set up at the experimental garden of the University of Debrecen Centre of Agricultural Sciences Faculty of Agriculture, Department of Plant Sciences in 2005 and 2006 on calcareous chernozem soil. Six hybrids with different genetic characteristics and vegetation period were tested (Sze 269, DK 440, PR37D25, NK Cisko, Mv Maraton, PR34B97) at three different sowing dates.
2005 was a very wet year. The amount of precipitation in the vegetation period was about 150 mm higher than the average of 30 years. No significant differences were observed in temperature. However, the number of sunny hours was much lower during the summer than as usual. This had an influence on yields.
In 2006, there was no risk of inland water in spite of the large amount of precipitation at the beginning of the year. The amount of water available for plants was satisfactory during the season due to the favorable amount of precipitation. Therefore, plants suffered less from the heat in July. However, hail on 22 July caused significant damage. The number of sunny hours in the summer was high enough. The warm, dry autumn helped the water release of plants.
In 2005, the results of the third sowing date could not be evaluated due to the large number of missing plants. The yield of hybrids ranged between 12-14 t/ha for the first sowing date. For the second sowing date, yields ranged between wider boundaries. The hybrid PR37D25 has a very high yield in the case of the second sowing date, and its seed moisture content was favorably low. The yield of hybrid PR34B97 was the lowest at the later sowing date, the prime reason of this was damage caused by Diabrotica virgifera. The seed moisture content at harvest varied between 16-24% for the first sowing date. In the case of the second sowing date, higher values were measured. Hybrids Sze 269 and NK Cisko had favorable water release characteristics. The maximum value of leaf area index was the best in the case of the first sowing date (5-5.5 m2/m2).
In 2006, yields for the first sowing date ranged between 8-10 t/ha. At the second sowing date, more favorable results were obtained. The reason for this is probably that hail caused a higher damage in hybrids with the early sowing date. Plant stock with later sowing date could recover more successfully. Hybrid PR37D25 had very high yields for the second and third sowing dates. The high-yielding hybrid PR34B97 also had high yield, but this was accompanied by higher seed moisture content. Due to the warm, sunny autumn weather, the hybrids had good water-release dynamics and were harvested with a lower seed moisture content than in the previous year. For the first sowing date, the seed moisture content was around 13-14% except for hybrid PR34B97. For the second and third sowing dates, higher values were observed. Leaf area index was significantly reduced in August for all three hybrids due to the hail in July. For the first two sowing dates, the leaves of hybrid Sze 269 were the first to dry similarly to the previous year.
Year had a strong effect on the results in both years. -
Studies of the effects of N fertilizers and Microbion UNC biofertilizer on microelement content of horseradish (Armoracia macrocarpa)
41-45Views:117A field experiment on calcareous chernozem soil was performed to study the effects of different N and bacterial fertilizers on the nutrient content of horseradish (Armoracia macrocarpa). In the experiment the trials were arranged in a randomized block design with three replications, applying three levels of NH4NO3 and different N fertilizers, namely ammonium-nitrate, urea and calcium-nitrate, with or without application of Microbion UNC biofertilizer.
In the present paper the changes and distribution of manganese, zinc and copper contents of the horseradish plant are summarized by the
effect of different treatments.
The Mn content of leaves were higher in all cases than those of roots, but Zn mainly accumulated in the roots. The distribution of copper within the horseradish plant was more equalized than that of Zn and Mn. Different N fertilizers and increasing doses of ammonium-nitrate had effects mainly on the microelement contents of leaves. The highest Mn contents of plant were measured in treatments of Ca(NO3)2 and Ca(NO3)2+Microbion. The lowest ammonium nitrate dose (N1) decreased the Mn content of leaves compared to control, but further doses
(N2, N3) did not alter these values any longer. Microbion UNC biofertilizer did not have any effect on the Mn content of roots, but we measured higher Mn in leaves in some combined treatments. Ca(NO3)2 increased the zinc content in leaves and roots in a noticable manner. With the increasing of NH4NO3 doses, the Zn content of leaves and roots augmented significantly. Neither N fertilizers (or the increasing doses of NH4NO3) nor the biofertilizer application influenced the Cu content of horseradish plant.
N fertilizers had higher effects on the microelement content of horseradish, the biofertilizer’s effect was smaller and was not the same in every treatment. -
Towards good land governance in Ukraine
37-39Views:98The article presents the analysis of transformation of land governance system in Ukraine and explores peculiarities of every component of that system. The carried investigation reveals problematic aspects and the ways for improvement of state land policy, land reform conducting, land management instruments applying and land administration system building to promote good governance in land sector of Ukraine.
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Agronomical and economic evaluation of various cultivation systems on meadow soil
103-106Views:108The requirements and objectives of cultivation are in constant change. There are different cultivation aims if the objective is soil protection, the prevention of its moisture content or on areas with different precipitation supply or production site endowments. Based on the experimental database of the Institute for Land Utilisation, Regional Development and Technology of the University of Debrecen, Centre for Agricultural and Applied Economic Sciences and the KITE Plc., the various cultivation systems in Hajdú-Bihar country were examined with maize as indicator plant. The sample area can be found in the outskirts of Biharnagybajom on meadow soil. On the examined plot, spring strip basic cultivation, loosening and autumn ploughing were applied on 15-15-15 ha, respectively. At the time of taking undisturbed soil samples, soil conductivity measurements were also performed with a Penetronik penetrometer. Undisturbed soil samples were taken from each treatment before sowing (on 5th April 2012). The yield obtained in the strip cultivation treatment increased that of the ploughing and the loosening technology. The economic indexes are the most favourable in the strip cultivation.
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Studies of plant density increase – on maize hybrids of various genotypes on chernozem soil
87-92Views:152The yield and crop safety of maize are influenced by numerous ecological, biological and agrotechnical factors. It is of special importance to study one of the agrotechnical elements, the plant density of maize hybrids, which is influenced by the growing area conditions and the selected hybrid.
We have investigated the effects of three different plant numbers (50 thousand plants ha-1, 70 thousand plants ha-1 and 90 thousand plants ha-1) on the yield of 12 maize hybrids of different genotypes in Hajdúság, on calcareous chernozem soil, in the Látókép Research Farm of the University of Debrecen, Centre for Agricultural Sciences, in 2013. The experiment was set in four replications, besides commonly applied agrotechnical actions. In the experiment, 1 hybrid of very early (Sarolta), 9 of early (P 9578, DKC 4014, DKC 4025, P 9175, NK Lucius, Reseda, P 37N01, DKC 4490, P 9494) and 2 of medium (Kenéz, SY Afinity) maturation were used.
With the increase of the plant number, the number of individuals per unit area increases. According to our experimental results, we have concluded that with the increase of the plant number, the yield increased in the average of the hybrids. In the average of the hybrids, in the case of 50 thousand plants ha-1, the yield was 13 130 kg ha-1, in the case of 70 thousand plants ha-1, it was 13 824 kg ha-1, while in the case of 90 thousand plants ha-1, the yield became 13 877 kg ha-1.
In addition to plant density increase, it is necessary to determine the optimal plant number that is the most favourable for the certain hybrid under the given conditions. To fulfil this aim, we have determined the optimal plant number corresponding to the maximum yield of the given hybrid, within the given plant number range. The optimal and applied plant numbers differ, since the optimal one could only be applied under ideal conditions. Since the agrotechnical actions cannot always be carried out in appropriate quality and one has to adapt to the weather conditions, thus we have determined a plant number range in the case of each hybrid. The hybrids were classified into categories of producible in narrow and broad plant number range.
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Some strategic aspects of animal protein production
11-19Views:184The access to food shaped human societies and dietary models throughout the history of mankind. Animal protein consumption became a part of human culture. Data are presented showing the relationship of daily calorie and animal protein consumption as affected by capita GDP changes. Examples are presented how genetic improvement of animal and fodder plants influenced the resource efficiency and the overall environmental footprint per unit product. The two examples presented are: the dairy industry of the USA the 1944 and 2007 situation, and the Hungarian broiler chicken sector considering data relevant to 1930, 1960 and 2010. In both cases, dramatic improvements in resource efficiency could be demonstrated. The agricultural area required to animal feed production was reduced by more than 80% in both cases per unit product. Future possibilities are briefly discussed, referring to the still unutilized land reserves of the Globe, the new evolving technologies in progress inclusive the CASPR/Cas 9 genetic editing methods.
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Comparison of apricot cultivars for suitability for organic growing
63-65Views:64Nowadays, important task is using more widely the environmentally friendly production technologies. There are considerable differences
among technologies using reduced spray programs (integrated and organic) in plant protection and plant nutrition.
In this case integrated production has a better position as roles for organic production more strict and due to this fruits has an obvious
temporal and permanent reduction in tree conditions. Fitotechnical elements and renewal and regeneration of cultivars are important
factors for offseting or delaying of condition weakening.
In this study, 5 apricot cultivars (not pruned for 8 years) were compared in their characteristics (assessment of inactive, semi-active and
active plant parts).
Our study showed that there were 50-70% differences among observed characteristics. Our study confirmed those cultivars which are
suitable for organic production and which one more resistant to condition weakening and which one able to tolerate negative technological
effects. -
Effects of production factors on the yield and yield component of winter wheat
26-31Views:80The effect of major production factors (forecrop, fertilisation, irrigation, soil cultivation and soil preparation) on the yield components and yield of winter wheat were studied in a long-term experiment set up at the Látókép Experimental Nursery of the Agricultural Sciences Centre of the University of Debrecen. The results of regression analysis led to the following conclusions:
• In our experiments in 2000, after using maize as a forecrop –based on the results of analysis of regression – fertilisation determined the yield.
• After using pea as a forecrop, a N50 P35 K40 kg/ha fertiliser rate led to an economical increase in the yield of winter wheat.
• None of the determinative yield components varied significantly for winter wheat produced after using pea as a forecrop.
• There is a closed, significant correlation between plant height, spike length, plant and spike mass, the number of spikelets and grains per spike after using maize as forecrop. The thousand grain mass is different from the other yield components, because it is not part of the relation system of
those yield components.
• The increased yield of winter wheat after maize has been used as a forecrop is due to the positive change in grain number per spike yield component. -
Comparison of Reproductive Performance of the Roe Deer (Capreolus capreolus, L.) Among Different Regions
41-46Views:84The potential and actual number of offspring of roe deer and the difference between these figures (prenatal and postnatal loss) significantly vary in each population yearly. The objective of this study is to examine the potential and actual number of offspring, the number of losses, and to find a link between the most important biological characteristics of does (body weight – BW, condition – KFI) and the number of raised offspring on four territories on the Great Hungarian Plain.
Where the number of corpora lutea (CL) is the highest, there the losses are the highest as well, and the number of raised offspring is the lowest (region I.). Here, the rearing loss is double that of the weakest territory (region IV.). Rearing losses can be associated with the fenotype of does (BW, KFI) but environmental factors also have determinative importance. Where the number of twin-calving does was the highest, I found four times more does without a fawn than where the number of twin-calving does was the lowest. The nursing success was the best (the losses were lowest) in the region where the potential offspring (number of CL) was also the lowest, but the coverage of the habitat and the proportion of forests were largest. The food supply for the animals in autumn and winter are not enough, the structure of the habitat has to be improved as well, so that it might become adequate for game protection in extreme weather conditions.
The results have to be considered as preliminary ones. It is essential to continue and extend the research to increase the reliability of the results.