Open AccessComparison of productivity indicators for the Far Eastern selection of soybean varieties under adverse climatic conditions with different planting dates
Author(s) -
Т. Н. Федорова,
Konstantin Dubrovin,
Н А Селезнева
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/547/1/012006
Subject(s) - sowing , productivity , yield (engineering) , agronomy , growing season , precipitation , biology , selection (genetic algorithm) , hydrothermal circulation , mathematics , environmental science , geography , paleontology , materials science , artificial intelligence , meteorology , computer science , metallurgy , economics , macroeconomics
The aim of this study was to determine the relationship between the productivity indicators of soybean varieties of the Far Eastern selection and the climatic conditions of the Russian Far East. We studied the yield, protein content, 1000 seed weight, and the number of beans and seeds per plant, according to the planting date of two varieties: «Batya» and «Khabarovskiy Jubilyar». The duration of the growing season, the sum of temperatures, the amount of precipitation, as well as the Selyaninov Hydrothermal Coefficient were considered as characteristics of the growing season. The period in which the experiment was conducted was unfavorable for the growth and development of soybeans compared with long-term average values. The number of beans per plant, the number of seeds per plant and the yield of «Khabarovskiy Jubilyar» were higher than the corresponding values for «Batya» (the yield of «Khabarovskiy Jubilyar» was 0.8 t/ha higher than «Batya»). Hydrothermal conditions limited the realization of the potential productivity of «Batya», restricting it to 45% of the potential yield. For «Khabarovskiy Jubilyar», this figure was 87%. The relationship between productivity and the length of growth period, as well as hydrothermal characteristics, was established.