Selection of middle-ripening lines of corn of plasma Iodent on the basis of sisterly double-cross hybrids

Abstract

Goal. Creation of sister hybrids and synthetic populations of Plasmodium Ayoden and the deduction on their basis of self-pollinated lines, adapted to the conditions of the Northern Steppe of Ukraine and other zones of corn sowing. Methods. Experimental and statistical. Hybrids were sown in a control nursery in the second half of the third decade of April. Results The estimation of double sister hybrids of Plasmodium Ayodent and created on their basis self-pollinated lines with regard to grain yield are given. Conclusions The selection of high combining ability on the basis of "grain yield" and the assessment of a family of selection parameters among families in subsequent self-pollination generations allowed the selection of new lines of plasma Ayodent, which are dominated by the best outcomes of sister synthetic populations by combination ability and other economic features.