摘要
【目的】研究新疆主要春小麦品种(系)的耐旱性和水敏感性。为筛选出的耐旱、水敏感及水高效品种在不同生态区大面积推广种植提供了参考。【方法】设置田间有限灌溉和充分灌溉处理,测定小区的实收产量和主要农艺性状,计算干旱产量指数(DYI)、丰水产量指数(WYI)和产量-水分高效利用指数(YHWUEI)。干旱产量指数(DYI)分析耐旱性,丰水产量指数(WYI)分析水敏感性,产量-水分高效利用指数(YHWUEI)分析水高效特性。【结果】筛选出耐旱性强品种(系)5个(DYI>1.05):新春33号、新春44号、新春40号、新春38号、14-10,水敏感性强品种(系)7个(WYI>1.05):新春29号、29-3、14-10、新春33号、新春37号、新春26号、新春40号,水高效品种(系)3个(YHWUEI>1.05):新春33号、新春40号、14-10。【结论】2007年及以后育成的部分春小麦品种(系)较2006年以前育成的品种在产量、耐旱性、水敏感性方面得到提高,穗粒重和千粒重可作为耐旱性鉴定指标。
[ Objective ] The research aims to study the drought resistance and water sensitivity character- istics of spring wheat cuhivars in Xinjiang. [Method] and yield high water use efficiency index （YHWUEI） water sensitivity and water use efficiency, which were Drought yield index （DYI）, water yield index （WYI） were separately used for analyzing drought resistance, measured by main agronomic traits and grain yield in limited irrigation and normal irrigation. [ Result] Five varieties （or lines） had strong drought resistance （DYI 〉 1.05）, including Xinchun No. 33, Xinchun No. 44, Xinchun No. 40, Xinchun No. 38, 14 - 10. Seven varieties （ or lines） were water sensitive variety with high water yield index （ WYI 〉 1.05 ）, which included Xinchun No. 29, 29 - 3, 14 - 10, Xinchun No. 33, Xinchun No. 37, Xinchun No. 26, Xinchun No. 40. Xin- chun No. 33, Xinchun No. 40, 14 - 10 were varieties （ or lines） of high water use efficiency （ YHWUEI 〉 1.05 ）. [ Conclusion ] The yield, drought tolerance and water - sensitivity of spring wheat cultivars released af- ter 2007 were improved. The correlation analysis between agronomic traits and drought resistance index showed spike grain weight and 1,000 grain weight can be used as indicators of drought tolerance identification. The results provide a reference for varieties with drought resistance, high water use efficiency or water sensitivity released largely in different ecological zones.
作者
李剑峰
樊哲儒
张跃强
王重
张宏芝
赵奇
赵永川
LI Jian - feng FAN Zhe - ru ZHANG Yue - qiang WANG Zhong ZHANG Hong - zhi ZHAO Qi ZHAO Yong- chuan(Research Institute of Nuclear and Biotechnologies, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China Seed Control Station of Midong District, Urumqi 830019, China)
出处
《新疆农业科学》
CAS
CSCD
北大核心
2016年第12期2232-2241,共10页
Xinjiang Agricultural Sciences
基金
新疆维吾尔自治区自然科学基金项目(2014211A037)~~
关键词
春小麦
耐干旱
水敏感
spring wheat
drought tolerance
water sensitivity
