Title: Analysis on Main Agronomic Traits of a Set of Indica Japonica Rice Recombinant Inbred Lines(RIL)
Abstract: The plant height, heading date, yield and yield components of a set of 265 “Lemont×Teqing” recombinant inbred lines(RIL) were investigated by variance analysis, correlation analysis and stepwise regression analysis. The results showed that significant differences between the parents were detected for all measure traits except plant height and panicle number. The frequency of all traits except panicle number in the RIL populations was approximately normally distributed with slight skew. The tremendous transgressive segregation for all traits was observed in the populations. The correlations between grain weight per plant and seed setting rate, grains per panicle, filled grains per panicle, plant height respectively were significantly positive. All traits except 1000 grain weight exhibited a significant positive correlation with plant height. The sequence of characters contribution to the grain weight per plant were as follows: seed setting rate, panicles per plant, grains per panicle, and 1000 grain weight. These four traits contributed 90.7% of genetic variation of the grain weight per plant. Six elite RILs were selected and evaluated the main agronomic traits. These results could be provided some useful information for quantitative trait loci (QTL) mapping and rice breeding.
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
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Cited By Count: 2
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