Title: Study on heterotic ecotypes of japonica rice based on the heterosis
Abstract:The heterotic ecotypes were studies by analysis of heterosis of the F_1 hybrids which were created in a diallel set of cross between 9 ecological types.The heterotic patters of japonica rice were also...The heterotic ecotypes were studies by analysis of heterosis of the F_1 hybrids which were created in a diallel set of cross between 9 ecological types.The heterotic patters of japonica rice were also established.The result indicated that Japonica ecotype of North-China,Taiwan,Japanese and Korea rice were considered as heterotic ecotypes in this study.The heterotic patterns in this study were Japonica ecotype of Korea×Japanese Japonica ecotype,Japonica ecotype of Northwest × American rice and Taiwan japonica rice × Japonica varieties of Japanese.It was suggested that Northwest Japonica varieties exist heterotic genes of number of grains,and Taiwan japonica varieties,Japanese japonica varieties and Korean japonica varieties exist heterotic genes of number of panicle,and IRAT varieties have heterotic gene of grain weight.It was also found that the correlation coefficient between heterosis and the divergence of parents in morphological traits were not significant different.Read More
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 2
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