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水稻直立穗性状的遗传与其它性状的关系
引用本文:徐正进,陈温福.水稻直立穗性状的遗传与其它性状的关系[J].沈阳农业大学学报,1995,26(1):1-7.
作者姓名:徐正进  陈温福
作者单位:沈阳农业大学稻作研究室
基金项目:国家八五攻关项目,国家自然科学基金
摘    要:直立穗型辽粳5号与弯曲穗型丰锦和沈农129号杂交,F1表现直立穗型,F2直立穗型与弯曲穗型表现3:1分离,正反交F1表现和F2分离均无显著差异;直立穗型穗和上部节间较短,因此株高明显低于弯曲穗型;直立穗型1,2次枝梗和1,2次枝梗籽粒的比例和分布都与弯曲穗型相似,但2次枝梗籽粒尤其是下部2次枝梗籽粒空秕率高,粒重亦明显低于1次枝梗籽粒;选育1次枝梗籽粒比率高,2次枝梗籽粒主要分布于穗轴上部的直立穗型品种,将有助于改善结实性和品质.

关 键 词:水稻  穗部性状  直立穗型  遗传分析

The Heredity of the Erect Panicle Character and Relations with Other Characters in Rice
Xu Zhengjin,Chen Wenfu,Zhang Longbu,Zhang Chunli.The Heredity of the Erect Panicle Character and Relations with Other Characters in Rice[J].Journal of Shenyang Agricultural University,1995,26(1):1-7.
Authors:Xu Zhengjin  Chen Wenfu  Zhang Longbu  Zhang Chunli
Abstract:The erect panicle type rice-Liaojing 5 was crossed with the curved panicle type rices-Fengjin, Shennong 129.The phenotype of F1 was the erect panicle type,and proportion of the erect to curved type in F2 was 3:1 No remarkable difference had been found between the bahavior of bahavior of F1 and segregation of F2 in reciprocal cross.The ear and upper internode of the erect panicle type were shorter,so its height was obviously lower than that of the curved one.The proportion and distribution of the first,second branches and the seeds on them of the erect panicle were similar with those of the curved one.But the shrunken ratio of the seeds on second branches,especially on mid and lower second branches, were more higher than that of the curved one, whereas the weight of seeds was less.
Keywords:Rice  the characters of panicle  the erect panicle type  genetic analysis
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