直立穗型品种对产量起正向作用的是穗粒数和千粒重，弯曲穗品种对产量起正向作用的是穗数。
The yield of had a positive relation with the spikelets per panicle of erect type, and with the panicles of curve type.
对大穗型单株穗数的选择也不应忽视。
It is important to select number of heads per plant in big spike type breeding.
对大穗型单株穗数的选择也不应忽视。
It is important to select number of heads per plant in big spike type breeding.
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