Adaptive potential of winter wheat varieties under contrasting conditions of mineral nutrition in the middle Don

The current study was carried out to research the adaptive potential of winter wheat varieties depending on level mineral nutrition in soil and climatic conditions north Rostov region 2012–2018. objects were 10 bred by FGBSI FRARC. Between 2012 2014 there studied 6 (the first group), 2015–2018 4 ones (second group). experimental plot represented southern medium-thick calcareous chernozem. scheme included 12 backgrounds nutrition. Crops laid weedfree fallow, seeding rate million germinating seeds per 1 ha for each agricultural variant. Agro-climatic years contrasting. As a result study, found that group varieties, factor ‘variety’ had greatest influence productivity formation (64.4 %), second it ‘agrobackground’ (71.0 %). Productive possibilities (according coefficient adaptability) ‘Donskaya Lira’, ‘Donna’, ‘Zolushka’, ‘Boyarynya’ ‘Donera’ high, they amounted 101–108 %. In contrasting nutrition, above listed an optimal ratio between needs genotype background. ‘Donna’ their groups formed maximum yield with 6.71 t/ha 6.42 ‘Donna’. course work, ‘Missiya’ ‘Tarasovskaya 70’ high adaptability limited amount fertilizers. combination parameters ecological stability ‘Boyarynya’, ‘Vestnitsa’, ‘Donstar’, ‘Donera’. They wide range capabilities, therefore, under production conditions, could produce stable grain various variations