晚冬早春阶段增温对冬小麦光合性能及旗叶衰老的调控作用

闫鹏,孙小诺,杜雄,高震,边大红

Effects of Artificial Warming from Late-Winter to Early-Spring on Photosynthesis and Flag Leaf Senescence of Winter Wheat

Peng YAN,XiaoNuo SUN,Xiong DU,Zhen GAO,DaHong BIAN

表2 不同处理的冬小麦产量和水分利用效率

Table 2 Yield and water use efficiency of the winter wheat under different treatments in the two growing seasons

生长季 Growing season 处理 Treatment 穗数 Spike number (104·hm-2) 穗粒数 Kernel number per spike 千粒重 1000-kernel weight (g) 籽粒产量 Grain yield (kg·hm-2) 田间耗水量 Field water consumption (mm) 水分利用效率 Water use efficiency (kg·hm-2·mm-1) 2015-2016 2016-2017 M2E M2L M1 CK M2E M2L M1 CK 614.7a 611.4a 608.6a 614.4a 613.6a 610.4a 600.6a 597.3a 37.5a 37.2a 34.0b 33.8b 36.0a 35.8a 33.6b 33.1b 46.7a 46.5a 41.3b 40.9b 46.0a 44.6b 41.1c 40.8c 10160.9a 9905.1a 8492.1b 8437.8b 9995.4a 9691.1b 8198.4c 8137.8c 462.2a 458.3a 442.7b 441.4b 481.2a 472.8b 460.8c 456.5c 22.0a 21.6a 19.2b 19.1b 20.8a 20.5a 17.8b 17.8b