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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。
Leaf traits and grain-leaf ratio of 10 wheat cultivars (lines) were studied. The results showed that the relationship between the leaf area and the yield was very close and had a significant negative correlation with the panicles per unit area and a very significant positive correlation with the spikelets per panicle and the grain weight per spike. The main grains per spike / It showed extremely significant positive correlation with grain yield, which was not closely related with the yield factors and could be used as an important selection index for high-yielding breeding.