The major reason for the improved wheat yield was the increase in the number of grains per spike and the thousand-grain-weight.
改进小麦产量的主要因素是每穗粒数和千粒重的增加。
The gene effects of ear length, ear thickness, kernel rows per ear, hundred-grain-weight(H. G. W. ) and grain weight per plant were analyzed in a set of diallel crosses which involved 8 parents.
由8个亲本组成的双列杂交试验，分析了穗长、穗粗、穗行数、百粒重、单株籽粒产量的基因效应。
While taller wheat competed better for sunlight, they had a tendency to collapse under the weight of extra grain—a trait called lodging.
虽然较高的小麦能更好地争夺阳光，但它们在额外谷粒的重压下会有倒塌的倾向——这种特性被称为倒伏。
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