QUANTITATIVE AND QUALITATIVE INDEXES OF THE FUNCTIONING OF PHOTOSYNTHETIC APPARATUS OF ORNAMENTAL SUNFLOWER PLANTS WITH DIFFERENT SEEDING RATES UNDER CONDITIONS OF THE SOUTHERN STEPPE OF UKRAINE

IF 0.6 Q4 AGRONOMY AgroLife Scientific Journal Pub Date : 2022-12-31 DOI:10.17930/agl2022234

Oleksandr Zhuikov, S. Lavrenko, V.Yu. Lavrys, N. Lavrenko

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Abstract

The research revealed the tendency for an increase in the index of the average area of an individual leaf blade when the seeding rate rose from 50 to 60 thous. pcs./ha, and further there was a reduction in this index when the seeding rate increased to 70 thous. pcs./ha. The average index in the variant of the hybrid Teddy F1 was 72.6 cm

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