论文部分内容阅读
1.本试验在高度密植基础上,用在不同时期予以稀疏的方法,来分析密度对小麦穗器官等性状发生影响的主要期间;在一般密度基础上增施肥料,来分析前、中期施肥对穗器官发育的作用。 2.播种至二稜期前密度对减低单株有效蘖数的影响最为显著。 3.二稜期至小穗突起期间密度对植株干重及每穗小穗数减少的影响最为明显。 4.顶穗分化期以后密度影响每穗总粒数的形成。 5.抽穗以后的羣体密度对每株总粒重及千粒重影响最大。 6.二稜期或顶穗分化期增施肥料有提高有效蘖数的效果。
1. The experiment was based on a high density, using different methods in different periods to analyze the density of wheat ear organs and other traits have an impact on the main period; on the basis of the general density of fertilizers to analyze before and after fertilization Spike organ development role. The most significant effect of reducing the effective number of tillers per plant is the density before sowing to two-edge. The density of plant dry weight and the number of spikelets per panicle decreased most obviously during the two-ridge-to-spikelet spike. After top panicle differentiation, the density affected the formation of total grains per panicle. 5. The population density after heading had the greatest effect on the total grain weight and 1000-grain weight per plant. 6. Dianxing or top panicle differentiation of fertilizers have increased the effective number of tillers effect.