Use of a reproduction practice by a whole ear in winter wheat primary seed farming

The article presents the results of field and laboratory studies from 2017 to 2020, on basis which a comprehensive assessment was given for study various sowing patterns (2, 3, 4, 5 ears/run.m with width interspaces 45 cm) whole unfinished ear winter soft wheat Lgovskaya 4 variety in nursery testing offsprings first year Kursk Region. It found that when selecting ears by size, it is necessary take into account weight grain ears, as most variable feature. Inside ear, large density plants noted, significantly reduced nutritional area compared extreme ear. Plants inside had similar conditions nutrition development all patterns. Extreme due larger food were better conditions. Productive bushiness decreased thickening crops 2.1 1.6 stems/plant. cenosis yield, contrary, increased 85% 60.4%, respectively. best formation full-value seed crop developed at ears/lin.m, since maximum indicators noted: survival rate 84.1%, yield conditioned seeds 93%, germination energy 95%, smallest number rejected families 19%. use compacted pattern ears/lin.m first-year offspring 75% control.