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研究采用贝克曼生长分析法,结合新疆地区影响春小麦生长发育和产量形成的生态因素,对春小麦主茎型和分蘖型两种类型品种的研究结果表明,不同品种、不同密度干物质积累过程有相同的趋势,即春小麦一生中,表现有三个快速生长时期——拔节期、孕穗期和灌浆期。但快速生长高峰值出现的早晚,处理间有差异,第一高峰值到来早者,最终干物质积累较多,说明春小麦苗期早促的重要性;第二高峰值期处理间变化较大,说明密度对春小麦拔节—孕穗期间干物质积累影响大;第三高峰值期与籽粒干重积累关系最大。数学模拟密度与产量的关系,分蘖型品种45万穗/亩,主茎型品种35万穗/亩,产量最高。
Based on the Beckman growth analysis method and the ecological factors that affect the growth and yield formation of spring wheat in Xinjiang, the results of two types of spring wheat main stem and tiller showed that the accumulations of dry matter of different varieties and densities were the same The trend of spring wheat, the performance of three rapid growth stages - jointing, booting and filling stage. However, there was a difference between treatments in the early and late peak of rapid growth. The arrival of the first peak and the final accumulation of dry matter in the early peak showed the importance of early spring wheat seedling stage. Indicating that the density of spring wheat at jointing - booting during the accumulation of dry matter has a greater impact; the third peak period and grain dry weight accumulation. Mathematical simulation of the relationship between density and yield, tillering 450 000 spike / mu, main stem 350000 spike / mu, the highest yield.