VARYABILITY AND HERITABILITY OF SOME TRAITS IN SIMPLE MAIZE HYBRIDS F1 AT LOW TEMPERATURES ANDUNDER NORMAL CONDITIONS
ИЗМЕНЧИВОСТЬ И НАСЛЕДУЕМОСТЬ РЯДА ПРИЗНАКОВ У ПРОСТЫХ ГИБРИДОВ F1 КУКУРУЗЫ ПРИ ПОНИЖЕННОЙ ТЕМПЕРАТУРЕ И В ОБЫЧНЫХ УСЛОВИЯХ

O.A. Klimenko
2020 EurasianUnionofScientists  
The values of heritability coefficients of parental genotypes were determined for such characters as "frequency of callus formation", "frequency of somatic embryogenesis","frequency of plant regeneration" under normal and stressful in vitro conditions in simple maize F1 hybrids. The highest value of the coefficient of heritability of maternal genotypes in traits studied in vitro was found for "frequency of somatic embryogenesis" at low temperatures. The variability and heritability of
more » ... bility of characters during the initial stages of plant development under the actionof low temperatures, as well as quantitative characteristics of the plant and male gametophyte, were evaluated. Hybrids in which the inbred lines A239 and 092 were used as maternal genotypes showed under stress higher indices of the studied traits both invitro conditions and at the seed level. For the characters "number of grains per row" and "plant height", the highest heritability coefficients of the interaction of maternal and paternal genotypes were noted. Hybrids A239xP502 and Co125xMK159 were selected by the higher values of the studied quantitative traits. Hybrid combinations with significantly high meanings of the most of the studied characters can be used to create cold-resistant and productive corn hybrids
doi:10.31618/esu.2413-9335.2020.9.74.789 fatcat:75cuv4tk65gthl64jbb2henn74