春播区绿豆产量与主要农艺性状相关性分析
wf（2022）
Abstract
采用变异分析、偏相关分析、相关分析和通径分析等方法,对25份绿豆品种在春播条件下各主要性状与产量间的关系进行了分析.结果表明,品种间单株荚数的变异系数最大,为29.7％,单荚粒数变异系数最小,为6.9％;生育天数、株高、主茎节数、主茎分枝数、单株荚数、单荚粒数和百粒重共同影响了公顷产量93.4％的变异,产量与主茎节数和单株荚数表现出极显著相关,偏相关系数分别为-0.452 6和0.485 6,与单荚粒数和百粒重表现出显著相关,偏相关系数分别为0.371 8和0.423 2;单株荚数与产量呈极显著正相关,相关系数0.681 6,单荚粒数和百粒重与产量呈显著正相关,相关系数分别为0.416 0和0.398 3;株高、主茎分枝数、单株荚数、单荚粒数、百粒重对产量有正直接效应,生育天数和主茎节数对产量有负直接效应.结合性状间的相互关系,在田间筛选和品种选育时,应首先考虑单株荚数、单荚粒数和百粒重,辅以株高和荚长.本研究为春播区高产绿豆品种的选育提供了参考依据.
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