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2 花前同化物向籽粒的转运量及花后同化物积累量对高温胁迫和施氮量的响应

Table 2 Response of assimilate translocation amount pre-anthesis to grain and assimilate accumulation post-anthesis to high temperature stress and nitrogen application rate

处理 Treatment 花前同化物AABA 花后同化物AAAA 转运量 TA (kg·hm-2) 转运率 TR (%) 籽粒贡献率 CR (%) 积累量 AA (kg·hm-2) 籽粒贡献率 CR (%) 济南JN CKN1 2213.18±143.97b 21.18±1.08a 27.55±0.07b 5343.56±35.02b 72.45±0.07cd CKN2 2144.03±116.87b 19.93±0.65a 26.39±0.10b 6216.09±45.84a 73.61±0.10c CKN3 2655.26±128.60a 22.91±0.77a 31.10±1.43a 6130.58±433.58a 68.90±1.43d HN1 746.73±106.73d 7.07±0.85c 20.49±0.40c 3164.33±92.76c 79.51±1.40b HN2 1224.37±113.86c 11.15±0.81b 19.30±1.08c 4707.26±55.68b 80.20±1.58b HN3 635.84±133.17d 5.88±1.06c 15.90±0.74d 3638.70±176.82c 84.10±0.74a 济阳JY CKN1 2020.81±16.37b 18.93±0.14a 27.74±0.40a 5514.26±0.08c 72.26±0.40b CKN2 2145.54±48.82a 19.26±0.64a 27.34±0.71a 5995.88±132.08b 72.66±0.71b CKN3 2255.84±37.18a 19.43±0.39a 27.14±0.68a 7308.18±46.95a 72.86±0.68b HN1 653.49±28.92e 6.16±0.27d 18.00±0.37d 3724.92±48.83e 82.00±0.37a HN2 1696.53±3.97c 15.17±0.11b 29.07±0.80a 4199.76±89.11d 70.93±0.80b HN3 1320.79±35.39d 11.63±0.35c 28.44±0.94a 3202.57±20.10f 71.56±0.94b FH 516.60** 765.81** 193.99** 726.97** 128.53** FN 20.79** 20.43** 11.00** 34.93** 7.92** FH×N 23.5794** 31.54** 15.83** 34.37** 11.83**