两系杂交水稻产量性状的相关及通径分析
ACTA AGRICULTURAE UNIVERSITATIS JIANGXIENSIS(2005)
Abstract
以5个光温敏不育系与10个恢复系(或常规品种)分别配成的组合为材料,从产量性状上对所配成的50个组合进行杂种优势分析.结果表明:杂种F1存在显著的个体杂种优势,在主要农艺性状尤以单株粒重、单株穗数、每穗粒数的杂种优势明显;相关、通径分析表明:每穗粒数、单株穗数、结实率、千粒重与单株粒重成正相关,且每穗总粒数、结实率对单株粒重的直接作用均达极显著水平.
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