E·成熟性效应 Jones等(1973)强调了与成熟阶段和收获期有关的质量变化上的需要。在已知收获期而与生长阶段无关的消化率或其他质量特性等的选择方法中,往往对抽样时中不太成熟的植物有利。如此净得结果可获得一个晚熟品系。而与此相反的测是当选择根据生长阶段决定时,早熟品系也就有利,这是因为它们在较早的历年行事日程进行抽样的。 E. Maturation Effects Jones et al. (1973) highlighted the need for quality changes associated with maturity and harvest. In methods of selection of digestibilities or other quality characteristics, which are known to be harvested but not at the growth stage, they tend to benefit less mature plants during sampling. This net result is a late-maturing line. In contrast, the early maturing lines are also beneficial when the choice is based on the stage of growth, since they are sampled on an earlier calendar year’s calendar.