【摘要】 对 1 0个小麦品种 (系 )的叶片性状和粒数叶比进行了研究。结果表明 :小麦叶面积与产量因素间的关系十分密切 ,与单位面积穗数呈极显著的负相关 ,与穗粒数、穗粒重呈极显著的正相关 ;主穗粒数 /旗叶面积与籽粒产量呈极显著的正相关 ,与各产量因素相关不密切 ,可作为高产育种的重要选择指标。更多还原

【Abstract】 This study was conducted with 10 genotypes of winter wheat. There were significantly negative correlation between leaf area and per unit spike, and significantly positive correlations between leaf area and per spike grain, and grain weight per spike. There was significantly positive correlation between spike grain/flag leaf area ratio and grain yield, and were not significant correlations between spike grain/flag leaf area ratio and all yield components. The spike grain/flag leaf area ratio can be regarded as important criteria of selection in high-yield wheat breeding.更多还原