施氮量对花后高温胁迫后小麦同化物积累、转运及产量的影响

高春华,冯波,曹芳,李升东,王宗帅,张宾,王峥,孔令安,王法宏

Effects of Nitrogen Application Rate on Assimilate Accumulation, Transportation and Grain Yield in Wheat Under High Temperature Stress After Anthesis

GAO ChunHua,FENG Bo,CAO Fang,LI ShengDong,WANG ZongShuai,ZHANG Bin,WANG Zheng,KONG LingAn,WANG FaHong

表1 高温胁迫和施氮量对小麦产量构成因素及同化物积累的影响

Table 1 Effects of high temperature stress and nitrogen application rate on yield components and assimilate accumulation

处理 Treatment 单穗重 WPP (g) 穗粒数 GWPP 千粒重 TKW (g) 成熟期同化物积累量 AAAM (kg·hm-2) 花后同化物积累速率AARAA (kg·hm-2·d-1) 收获指数 HI (%) 济南JN CKN1 1.29±0.03b 34.50±0.5c 47.30±0.30a 15785.52±114.40b 157.16±1.03b 50.92±0.63a CKN2 1.46±0.008a 35.50±0.1b 45.03±0.66b 16967.30±283.20a 182.83±1.35a 47.96±1.65a CKN3 1.56±0.02a 36.80±0.1a 43.83±0.04c 17716.02±607.11a 180.31±12.75a 48.24±1.53a HN1 0.87±0.06c 29.75±0.25e 19.56±0.24d 13697.32±155.75c 93.07±2.73c 26.53±0.39c HN2 1.24±0.05b 32.05±0.35d 37.14±0.27c 15671.66±173.46b 138.45±1.64b 39.41±0.09b HN3 0.94±0.02c 30.45±0.05e 17.12±0.54e 14399.02±143.37c 107.02±5.20c 27.57±0.79c 济阳JY CKN1 1.30±0.003c 34.00±0.8b 49.15±0.23a 16190.53±79.64c 153.17±0.002c 45.00±0.50ab CKN2 1.40±0.003b 36.60±0.2a 45.32±0.03a 16883.76±50.68b 166.55±3.67b 46.48±0.01a CKN3 1.66±0.004a 37.75±0.05a 44.05±0.36a 18902.49±8.95a 203.00±1.30a 43.99±0.40b HN1 1.00±0.004e 30.50±0.50c 21.41±3.53b 14331.65±52.49f 103.47±1.36e 25.33±0.69e HN2 1.13±0.14d 32.95±0.15b 38.71±1.25c 15392.29±69.81d 116.66±2.48d 37.94±1.13c HN3 1.01±0.01e 30.80±0.9c 24.54±0.29c 14565.30±94.87e 88.96±0.56f 31.89±0.41d FH 691.42** 369.32** 885.17** 368.11** 691.45** 1028.87** FN 47.68** 27.25** 73.18** 49.49** 34.07** 58.12** FH×N 48.21** 14.68** 90.81** 34.47** 31.95** 64.22**