河南农业科学Issue(9)：11-14,4.DOI:10.15933/j.cnki.1004-3268.2015.09.003
小麦花后灌溉时间对土壤含水量、叶片功能期及产量的影响
Effect of Irrigating Time after Flowering on Soil Water Content, Functional Period of Leaves and Yield of Wheat
摘要
Abstract
In order to clarify the alleviation effect of dry-hot wind harm by irrigating in different time after flowering of wheat,four kinds of irrigating modes were chosen as irrigating at 5 d after flowering(W1),ir-rigating at 8 d after flowering(W2), irrigating at 11 d after flowering(W3),and no irrigation after flowe-ring ( CK) .The results showed that at the first day of dry-hot wind the the soil water contents of W1 and W2 treatments were higher than that of W3 and CK treatments.At 5 d after dry-hot wind the soil water contents of W2 and W3 treatments were higher than that of W1 treatment,and the soil water contents of W1,W2 and W3treatments were higher than that of CK.Compared with CK,W1,W2 and W3 treatments could retarding the senescence of wheat leaves .And the leaf functional period order was W2>W1>W3>CK.W1,W2 and W3 treatments could extend the filling period of wheat ,the filling period order was W2>W1>W3>CK,which were 6 d,5 d,4 d longer than that of CK.The 1 000-grain weight and grain yield of W1,W2 and W3 treatments were significantly higher than those of CK,of which order was W2>W1>W3>CK.Compared with CK,grain yield of W2,W1 and W3 treatments increased by 26.5%,17.2%and 11.6%,respectively.Overall,irrigating in different time after flowering all relieved the dry -hot wind harm ,had the positive effect on soil water content,leaf functional period and yield,and W2 treatment had the best combined effect.关键词
小麦/灌溉/干热风/土壤含水量/产量Key words
wheat/irrigation/dry-hot wind/soil water content/yield分类
农业科技引用本文复制引用
冯荣成,刘清瑞,王璐..小麦花后灌溉时间对土壤含水量、叶片功能期及产量的影响[J].河南农业科学,2015,(9):11-14,4.基金项目
“十二五”国家科技支撑计划项目 （）
