No. 1 (2023)

Articles

Study of drought stress correlation on yield and yield components of maize cultivars (Zea mays L.)

Published:

2023-06-05

https://doi.org/10.34101/actaagrar/1/11495

Authors

Ali Khatibi,

Department of Agricultural Science, Technical and Vocational University (TVU), Tehran 1435761137, Iran

Saeed Omrani,

Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran

Ali Omrani,

Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran

Seyed Habib Shojaei,

Department of Agricultural Science, Technical and Vocational University (TVU), Tehran 1435761137, Iran

Árpád Illés,

Institute of Land Use, Engineering and Precision Farming Technology, University of Debrecen, 138 Böszörményi St., 4032 Debrecen, Hungary

Csaba Bojtor,

Institute of Land Use, Engineering and Precision Farming Technology, University of Debrecen, 138 Böszörményi St., 4032 Debrecen, Hungary

Seyed Mohammad Nasir Mousavi,

Institute of Land Use, Engineering and Precision Farming Technology, University of Debrecen, 138 Böszörményi St., 4032 Debrecen, Hungary

Janos Nagy

Institute of Land Use, Engineering and Precision Farming Technology, University of Debrecen, 138 Böszörményi St., 4032 Debrecen, Hungary

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Keywords

maize drought stress Correlation regression analysis grain yield

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Copyright (c) 2023 by the Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License.

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Khatibi, A., Omrani, S., Shojaei, S. H., Illés, Árpád, Bojtor, C., Mousavi, S. M. N., & Nagy, J. (2023). Study of drought stress correlation on yield and yield components of maize cultivars (Zea mays L.). Acta Agraria Debreceniensis, 1, 67-73. https://doi.org/10.34101/actaagrar/1/11495

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Received 2022-10-03
Accepted 2022-11-18
Published 2023-06-05

Abstract

This article was investigated to study the correlation and analysis of drought stress regression on maize cultivars' yield and components. The variance analysis results showed a significant difference between drought stress levels in terms of plant height, total dry weight and number of seeds per row, the total weight of cob, grain yield, harvest index, stem diameter, and cob weight with protective leave. Also, there was a significant difference in ear weight without protective leaves, ear diameter, ear length, plant weight, 100-seed weight, and seed per ear on hybrid treatments. There were statistically significant differences between cultivars in plant height, leaf area, ear diameter, ear length, number of seeds per row, number of seeds per ear, the total weight of cob wood, 100-seed weight, harvest index, plant dry weight. The results of the correlation of traits for the mean levels of drought stress showed a positive and significant correlation between plant yield and plant height, seed per row, ear length and weight of 5 pieces of wood and also with a total weight of cob wood, ear weight with bark showed the highest correlation. There is a significant correlation between leaf area and stem diameter, plant weight, total dry weight at the probability level of 0.05. Correlation coefficients between traits in non-stress conditions showed a positive and significant correlation between grain yield and height, ear length and grain in the row, which was a significant increase compared to stress conditions. The correlation of traits under full stress conditions also showed that the correlation coefficient between cob length trait and positive height was positive and significant. From the study of correlation coefficients between maize traits in non-stress conditions, it can be concluded that the most important components of grain yield are cob length and grain per row. While the correlation coefficients under moisture stress conditions show that the grain trait in the row has a positive and significant correlation with yield, under stress conditions in the cob stage did not show any traits with correlation yield.

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