DOI 10.36461/NP.2024.69.1.005
UDC 633.358:631.526.32

EFFECT OF GROWTH REGULATORS ON THE PRODUCTIVITY AND ECOLOGICAL PLASTICITY OF VEGETABLE PEAS
O.M. Kasynkina, Candidate of Agricultural Sciences, Associate Professor;
V.I. Gryazeva, Candidate of Agricultural Sciences, Associate Professor;
A.V. Nushtaeva, Candidate of Chemical Sciences, Associate Professor;
Yu.V. Blinokhvatova, Candidate of Biological Sciences, Associate Professor;
Federal State Budgetary Educational Institution of Higher Education "Penza State Agrarian University", Russia, tel. 8(412)-628373,
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One of the most important conditions for increasing the yield of vegetable peas and expanding the supply of raw materials is the selection of varieties adapted to specific environmental and climatic conditions and the improvement of cultivation technology. One of the methods for improving the technology of vegetable pea cultivation, which ensures high yields and its ecological compatibility, is the use of growth regulators. The effect of growth regulators on the productivity and environmental stability of vegetable peas was studied in the conditions of the collection plot of FSBEI HE "Penza State Agrarian University". It was found that the duration of the vegeatition period in the experimental variants was 75 to 80 days, while in the control variant it was 86 days. It was also found that treating the seed with growth regulators increased seed size in yield. So, the thousand seed weight was 154.6 to 172.0 grams when treated with preparations, compared to 150.2 grams in the control. The studies showed that the yield of the vegetable pea variety Darunok varied significantly from year to year, from 3.72 in 2020 in the variant with the application of the growth regulator Rastvorin to 5.14 t/ha in 2021 in the variant with the application of the growth regulator Epin-extra. Looking at the technological technique, i.e. growth regulators, in all study years, the highest yields were recorded in the seed treatment with Epin-extra and amounted to 4.54 t/ha in 2019, 4.96 t/ha in 2020 and 5.14 t/ha in 2021. The average yield for this variant over the three years was 4.88 t/ha, which is 0.93 t more than the control variant. Studies have shown that the growth regulator Epin-extra leads to consistently high yields under different weather conditions in different years. The ecological plasticity index for this variant was 1.13. The effectiveness of the application of other growth regulators depends on the vegetation conditions.
Keywords: vegetable peas, variety, productivity, growth regulators, interstage period, crop structure, ecological plasticity.

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