재래종 유래 찰옥수수 교잡종의 주요 농업 및 식미 관련 형질에 대한 이면교잡 분석
Diallel Analysis of Agronomic and Palatability Traits in Waxy Corn Hybrids from Korean Landraces
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초록
This study was carried out to select waxy corn inbreds with good general combining ability through a diallel analysisof 10 half diallel crosses among five inbreds developed from Korean maize landraces. Total of 21 agronomic and palatabilitytraits were investigated over two locations in 2016. There was a significant hybrid by location interaction found in plant height,ear height, number of tillers/plant, per ear weight, ear tip filling, ear commercial value and sweetness when four additional checkcultivars were included in the analyses. A significant general combining ability by location interaction was found in ear height,number of tillers/plant, per ear weight, ear length and sweetness while ear width, ear commercial value and sweetness weresignificant for specific combining ability by location interaction. Sweetness was found significant for both interactions. The firstand fourth inbred lines had the most number of traits with good estimate of general combining ability. The first inbred is expectedto improve days to tasseling, anthesis silking interval, ear width, ear circumference and sweetness while decreasing husk coverin a hybrid combination. The fourth inbred line would improve days to tasseling, days to silking, plant height, ear height, perear weight and ear length but ears would be a bit tougher than the average. A total of 19 traits had higher variance of generalcombining ability than that of specific combining ability. Husk cover was 12.1 times higher. Plant height and number oftillers/plant had higher variance of specific combining ability.
Abstract
This study was carried out to select waxy corn inbreds with good general combining ability through a diallel analysisof 10 half diallel crosses among five inbreds developed from Korean maize landraces. Total of 21 agronomic and palatabilitytraits were investigated over two locations in 2016. There was a significant hybrid by location interaction found in plant height,ear height, number of tillers/plant, per ear weight, ear tip filling, ear commercial value and sweetness when four additional checkcultivars were included in the analyses. A significant general combining ability by location interaction was found in ear height,number of tillers/plant, per ear weight, ear length and sweetness while ear width, ear commercial value and sweetness weresignificant for specific combining ability by location interaction. Sweetness was found significant for both interactions. The firstand fourth inbred lines had the most number of traits with good estimate of general combining ability. The first inbred is expectedto improve days to tasseling, anthesis silking interval, ear width, ear circumference and sweetness while decreasing husk coverin a hybrid combination. The fourth inbred line would improve days to tasseling, days to silking, plant height, ear height, perear weight and ear length but ears would be a bit tougher than the average. A total of 19 traits had higher variance of generalcombining ability than that of specific combining ability. Husk cover was 12.1 times higher. Plant height and number oftillers/plant had higher variance of specific combining ability.
참고문헌 (27)
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