行距配置对高产冬小麦籽粒灌浆特性及淀粉和蛋白质积累的影响

Effects of Row Spacing Patterns on Grain Filling Characteristics,Starch and Protein Accumulation in Grains of High-yielding Winter Wheat

为研究不同行距配置对小麦籽粒发育及淀粉和蛋白质积累的影响,以4个高产冬小麦品种为材料,在河南浚县农业科学研究所超高产攻关田研究了不同行距配置下小麦籽粒灌浆特性及淀粉、蛋白质的积累动态。结果表明,高产小麦籽粒中可溶性糖含量下降与淀粉含量的增加趋势基本吻合,宽窄行种植模式(S1)籽粒中可溶性糖含量较高,且转化利用较快,促进了籽粒淀粉积累。从行距配置看,周麦22籽粒蛋白质含量以等行距种植模式(S2)较高,偃展4110和矮抗58均以S1较高,而豫麦49-198在两种种植模式下无明显差异。籽粒灌浆速率、千粒重和产量则表现为豫麦49-198、周麦22和矮抗58均以S1较高,而偃展4110以S2较高。灌浆模型分析表明,灌浆持续天数和最大灌浆速率出现时间是行距配置影响粒重的主要因素。

In order to evaluate effects of different row spacing patterns on grain filling characteristics,starch and protein accumulation in grains of winter wheat,four high-yielding wheat cultivars with different spike types,Yumai 49-198,Zhoumai 22,Yanzhan 4110 and Aikang 58,were cultivated in field condition with high-yielding potential.The experiment was carried out at the experimental farm of Xunxian Agricultural Science Institute in wheat growing-season of 2008-2009.The results indicated that decrease of soluble...