摘要
为寻找提高小麦水分利用效率的途径,以株型扩张品种烟农19、株型紧凑品种泰山23和株型半扩张品种济麦20为材料,比较研究了垄作(小水沟内渗灌)和平作(大水漫灌)两种栽培模式下小麦的水分利用效率。结果表明,不同基因型供试品种的叶片温度、籽粒产量和水分利用效率在两种栽培模式下存在显著差异,产量水平的水分利用效率与光合速率和蒸腾速率呈显著正相关。垄作小麦冠层为波浪状,有利于提高小麦的籽粒产量和水分利用效率。水分高效型品种与水分高效型栽培技术结合能够取得较高的水分利用效率。
Three wheat cultivars, Yannong 19 （with spread plant type）, Jimai 20（with semi-spread plant type） and Taishan 23（with erect plant type）, were used to investigate the WUE（water use efficiency） change under raised bed planting with furrow irrigation and conventional flat planting with flood irrigation. The results showed that there were siginificant differences at leaf temperature, grain yield and WUE for different wheat genotypes under two planting models. Yield＇s WUE was significantly and positively correlated with transpiration rate and photosynthetic rate. Raised bed planting （RBP） can get higher grain yield and water use efficiency than flat planting （FP）. Cultivars with high water use efficiency integrating with high water efficiency planting technique could acquire ideal WUE.
出处
《麦类作物学报》
CAS
CSCD
北大核心
2007年第3期514-517,共4页
Journal of Triticeae Crops
基金
国家"粮食丰产科技工程"重大科技专项项目(2004BA520A12)
山东省科技攻关项目(2004GG2209147)
关键词
小麦
栽培模式
光合速率
蒸腾速率
水分利用效率
Wheat varieties
Planting model
Photosynthetic rate
Transpiration rate
WUE
