Open AccessСравнительная оценка засухоустойчивости местных сортов кукурузы
Author(s) -
Елена Былич
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.53040/gppb7.2021.50
Subject(s) - limiting , yield (engineering) , agronomy , horticulture , mathematics , biology , mechanical engineering , engineering , materials science , metallurgy
The paper presents the results of assessing local varieties of corn for drought tolerance. Samples of the collection were tested in the field in the agro-climatic conditions of 2020. The criterion of re-sistance was the genotypic differences of the samples of such biometric parameters as: plant height; the number of productive ears; ear weight; weight of 1000 grains. The influence of the limiting factor reduced the number of productive ears (on average for varieties to 0,48). A positive correlation of this indicator with the weight of the ear (r = 0,77) and the weight of 1000 grains (r = 0,43) was determined. Four varie-ties were identified that exceeded the standard in terms of the weight of the ear and four in terms of the weight of 1000 grains. As a result of a comparative analysis of yield parameters after exposure to drought, four local varieties were identified that can serve as donors of resistance genes.