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在18种环境条件下测定了30个四倍体硬粒小麦品种和30个普通小麦品种的抽穗期、分蘖数、株高和千粒重的稳定性,所有被测性状的稳定性都有明显的品种差异,高产品种比低产品种对改良的环境条件有更大的反映(b>1.0)。就有关分离群体和苗圃选择中如何减轻不能预测的基因型×年份互作对选择效应负作用的几种方法进行了讨论。利用适用特性的可塑性之稳定性和各性状的最适平均数,可以增加供进一步检验的升级材料的机会,并且可以培育在可变环境下一致高产的品种。其中最稳定的性状是千粒重,最不稳定的是分蘖数和籽粒产量。
The stability of heading date, tiller number, plant height and 1000-grain weight of 30 tetraploid durum wheat varieties and 30 common wheat cultivars were determined under 18 environmental conditions, and the stability of all tested traits was obvious Differences, high-yielding varieties reflect more favorable environmental conditions than low-yielding varieties (b> 1.0). Several approaches to mitigating the effects of unpredictable genotype × year interactions on selection effects are discussed in the Separation Groups and Nursery Options. Using the plasticity stability of the applicable trait and the optimum average of the traits can increase the chances of upgrading materials for further testing and can breed consistently high yield varieties in a variable environment. One of the most stable traits is grain weight, the most unstable is the number of tillers and grain yield.