Functioning of photosynthetic apparatus of bean plants in conditions of Transcarpathia

N. M. Doctor, A. N. Martynov, N. V. Novytska

Анотація


In recent years beans become a widespread on the globe and among leguminous crops and in sowing areas, which make up 26 million hectares, occupies the second place after soybeans. The aim of research is to study formation and functioning of photosynthetic apparatus of the bean plants varieties Mavka, Perlyna, and Nadia, depending on level of fertilizing and seed inoculation in conditions unconventional region for the culture - Transcarpathia Ukraine.

The investigations were carried out in "Mukachevo Agrarian College" NULES of Ukraine in Transcarpathian region on sod-podzolic heavy loamy soils. It was established that biggest leaf surface area of bean cultivars at the end of flowering period (40.7-42.9 thousand m2/ha) ensures application of mineral fertilizers at N60P45K45 and bean seeds inoculation by Rizobophyte of grade P with bacteria of the genus Rhizobium phaseoli. In general, the process of photosynthesis occurred more intensively in the period of vegetation in variety Nadia when seeds were inoculated and N60R45K45 was applied, providing the maximum indices of NPY - 8.29 g/m2 per day.


Ключові слова


kidney beans, variety, mineral fertilizers, inoculation, leaf surface area, net photosynthetic yield

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