유채 초다수 F1 잡종의 수량성 및 지역적응성 검정

Abstract

The purpose of this study was to investigate the magnitude of comercial heterosis for sed yields in oilsed rape todetermine the potential advantage of hybrids, especialy to observe morphological characters which may influence seed yields.Field tests were conducted with of 10 F1 hybrids combinations including Mokpo CGMS Mokpo 59 and Mokpo CGMS Mokpo64 along with Hallayuchae as the check during 1998-9 to 1999-2000, at two diferent agro-climatic conditions at Muan county(34o 58 N, 126o 27 E) of southwestern peninsula and Sanggui(33o 29 N, 126o 25 E) vilage of Cheju island in Korea. Were betterin al the morphological charaters investigated. The composit F1 hybrids were beterin compared to the check variety. F1 hybrids hada greater yield potential because the yield components such as number of productive plants per m2, siliqua per plant, and seeds persiliquae were higher than those of Halayuchae. In Muan country the magnitude of comercial heterosis for seed yields of F1hybrids was 52~58% and maximum sed yield of 5.21 ton per hectare. In Sangui village of Cheju island, the magnitude of com-mercial heterosis for sed yields of F1 hybrids was 1~37% and maximum sed yield of 3.69 ton per hectare. The expresion ofhybrid vigour in Sanggui vilage of Cheju was lower than Muan country and this night be due to unfavorable condition caused bylate sowing.