【摘要】 在池栽条件下,以高油玉米HE-2为试验材料,采用Logistic方程对其子粒灌浆过程进行拟合,探讨了年际间不同质地土壤条件下高油玉米子粒灌浆特性及产量的变化。结果表明:不同质地土壤(砂土、粘土、壤土)间子粒灌浆持续时间(T)、最大灌浆速率到达时间(Tm)、K、最大灌浆速率(Vm)和平均灌浆速率(Va)存在明显差异;进一步分析表明,平均灌浆速率(Va)和灌浆持续时间(T)共同决定粒重的大小,其中灌浆持续时间(T)起主要作用。两年产量均表现为粘土>壤土>砂土。更多还原

【Abstract】 In the experiment,high-oil corn was planted in containers with a volume of 1m×1m×1m, in which different textural soils including clay, loam and sandy were filled as the natural status. Effects of soil textural on characteristics of grain filling and yield of high-oil corn were studied. The experiments imitated the grain filling course by Logistic equation and analyzed the specific property of grain filling by T test, which were carried out at the agricultural school of henan during the 2004-2005 growing seasons. The results showed that there were variance among average filling rate(Va), filling duration time(T), biggest filling rate(Vm) and biggest filling time(Tm) in different treatments. There are great difference under different annual precipitation. Further analysis indicated that average filling rate(Va) and filling duration time(T) commonly determine the volume of grain, however, the later was more important. The yield of two years were shown as Clay > Loam > Sandy.更多还原