小穗数与可育小花数的多少由其分化速度决定。
The numbers of spikelets and fertile florets were controlled by the rate of differentiation.
单位面积小穗数是决定最终产量最重要的产量构成因素。
The number of panicles per unit area was the most important yield components in determining final yield.
奥尔森矮源近等基因系对回交父本的小穗数没有影响，对旗叶长影响比较小；
The near isogenic lines with Oleson did not affect the spikelet numbers and flag leaf length of backcrossing male parents.
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