摘要
试验在高、低两种墒情下 ,对西北干旱、半干旱地区不同年代春小麦品种水分利用率、根系干物质重、地上部生物量、根系呼吸速率、根冠比、光合作用、籽粒产量、收获指数等根系功能效率相关指标进行了研究 ,结果表明 :根系功能效率演变趋势表现为近期品种 >中期品种 >
In two moisture conditions correlative indexes of root function efficiency of spring wheat varieties of different ages in arid and semi arid regions were studied in the experiment, including the water efficiency, the dry matter weight and respire rate of root, photosynthetic rate, the above ground biomass, the ratio between root and canopy, the yield,and the harvesting index. The results showed that the root function efficiency was lately varieties>medium varieties>early varieties.
出处
《中国农业科学》
CAS
CSCD
北大核心
2002年第7期867-871,共5页
Scientia Agricultura Sinica
基金
国家自然科学基金资助项目 (3 9970 15 1)
