Search

Search Results

• Tulip bulbs preparation by heat treatment for forced culture in green house

  70-72

  Ioan Vlad

  Mariana Vlad

  Tudor Motiu

  Szilard Bartha

  Gânsac Voichita Timis

  Sorin Dorog

  Mircea Chebeleu

  Marinela Bodog

  Ruben Budau

  Stelian Pantea

  Views:

  71

  Tulip can be grown in parks as ornamental plant and cut flowers, or possibly in protected areas for cut flowers during winter and early
  spring.
  An important condition for the successful cultivation of tulips is the quality of the bulbs that are going to be planted and their
  biological preparation.
  Under the quality aspect bulbs have to be uniform and large, preferably with circumference greater than 11 cm and must have good
  phytosanitarical status.
  Preparation of organic bulbs for ensuring the continuation of the differentiation process of germs (floral), is made during the storage.
  It is known that the preparation of organic bulbs are made in interaction with environmental factors, among which temperature plays an
  important role. At the beginning and throughout the process of biological preparation, temperature is maintained at a higher level then the
  temperature must be low until planting.
  The temperature level and the duration of treatment varies by followed objective respectively early or late flowering and staggered
  flowers production over a longer period of time.

• Fusarium culmorum isolated from rhizosphere of wooly cupgrass (Eriochloa villosa) in Debrecen (East Hungary)

  93-96

  Tamás Tóth

  Arnold Szilágyi

  Views:

  143

  Wooly cupgrass (Eriochloa villosa) is an East-Asian originated weed species and it has been spreaded worldwide by now. The first occurrence of this species in Hungary was observed and published in 2008 nearby Gesztely village (Borsod-Abaúj-Zemplén county, North-East Hungary) than in the summer of 2011 a significant population was discovered next to Debrecen city (Hajdú-Bihar county, East Hungary).

  In 2013 this weed was also reported from Szentborbás village, Somogy county (South-West Hungary). These observations of spreading and its biological features (production of stolons and large number of seeds, moreover herbicide tolerance) indicate that wooly cupgrass (E. villosa) has a great potential of invasiveness, so it may become a hazardous weed not only in Hungary but in all over the world.

  The objective of this study was to identify the fungus which was isolated from wooly cupgrass (E. villosa) root residue samples which were collected after maize harvesting on arable land in late autumn, near Debrecen. The identification of the fungus based on morphological characters of colonies and the features of conidia developed on potato dextrose agar (PDA) plates. After the examination of axenic culture we revealed that the fungus from rhizosphere of wooly cupgrass was Fusarium culmorum. Pathogenicity and/or endophytic relationship between the fungus and wooly cupgrass is still uncertain so pathogenicity tests and reisolations from plants are in progress.

• Significance of biogas production in Hungary

  127-129

  Károly Kith

  Views:

  110

  It is known that the quantity of fossil energy sources are rapidly reducing, therefore it is necessary to determine a new direction which has to point directly to renewable energy sources. Increasingly comes into view the agriculture’s energy producing nature next to it’s traditional food producing one. The enviromental protection is connected to the energy production by the ultilization of biomass for energy purposes, within the biogas production has an emphasized importance. Quasi every organic material can be used in biogas production, such as: food processing by-products, manure, sewage sludge, hoousehold waste.

• Implementation alterantives of the CIVAQUA complex water management program in the Debrecen region

  71-73

  Sándor Nagy

  Views:

  118

  Hungary is one of the countries in Europe which has the largest amount of water supply because of its geographical conditions. Water comes from the surrounding mountains makes this water supply even more bigger. This precious water base needs to be treated responsibly and the most efficient way. The Civaqua program is a project with the above-mentioned conditions, made by the Local Government of Debrecen and the Water Directory of Trans-Tiszanian Region. This project deals with the exploitation of the East-Main Chanel’s water for social welfare, agricultural and inverimental protection purposes in Debrecen and its agglomeration. The aim of this paper is to give an overall insight into the investment plans of Civaqua program and it is also examines its positive direct and indirect effects on the region.