옥수수 유망자식계통들의 잡종집단에서 주요 농업형질들의 유전분석

초록

This study was conducted to find out the scientific maize breeding protocol for developinghigh performing single cross hybrid using introduced U.S. elite inbred lines; the pattern ofinheritance, heterosis and heritabilities of six agronomic traits were studied in the progeniesderived from five crosses (Mo17/B14A, Va85/B73, C103/ND203, FR35/Oh43, Wf9/A632).Among the five cross combinations, the cross combination of Mo17/B14A showed thehighest heterosis for the most agronomic traits. Among 6 agronomic traits, the grain yieldshowed the highest heterosis effect in most cross combinations. Most of the agronomic traitsin this study showed more than 50% heritability for six cross combinations, with anexception of the ear length trait. In conclusion, since Mo17/B14A showed excellentperformance for most of the agronomic traits, these inbred lines were desirable combinationand regarded as superior germplasm sources for F1 hybrid development. The results ofcurrent studies will be utilized for developing high performing single cross hybrid frommaize inbred lines, and will be used for the further genetic analysis of agronomic traits andmaize breeding programs.

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