干旱地区农业研究2009，Vol.27Issue(6)：63-66,72,5.
不同灌水处理对冬小麦冠层结构及光合特性的影响
Effects of irrigation on winter wheat photosynthetic character and canopy structure
摘要
Abstract
Irrigation treatments are conducted in different growth stages of winter wheat to study their effects on win-ter wheat canopy structure, photosynthetic character and yield. The results show that two irrigation treatment (in winter period and jointing stage) the chlorophyll content and LAI of winter wheat always maintain a high level in the whole growth period, while they show an inverted "V"-type in the early filling stage and flowering stage. The effects of irriga-tion treatments on the DIFN are in opposite to the trends of LAI changes. Two irrigation treatment the winter wheat flag leaf net photosynthetic rate, stomatal conductance and transpiration rate increase more significantly compared to one irrigation treatment(in winter or jointing stage), and intercellular CO_2 concentration decreases. The yield of all three varieties of P12, 138 and M808 reaches the maximum in the two irrigation treatment, reaching 5 045 kg/hm~2, 5 516 kg/hm~2 and 5 479 kg/hm~2, respectively.关键词
灌溉/冬小麦/冠层结构/光合特性/产量性状Key words
irrigation/winter wheat/canopy structure/photosynthetic character/yield character分类
农业科技引用本文复制引用
王艺陶,衣莹,章建新,侯立白,康建涛,董祥开..不同灌水处理对冬小麦冠层结构及光合特性的影响[J].干旱地区农业研究,2009,27(6):63-66,72,5.基金项目
总理基金(DMBY96-03) （DMBY96-03）
国家自然科学基金(30900894) （30900894）
