不同施氮水平下灌浆期高温对水稻贮藏蛋白积累及其合成代谢影响

韩展誉,吴春艳,许艳秋,黄福灯,熊义勤,管弦悦,周庐建,潘刚,程方民

Effects of High-Temperature at Filling Stage on Grain Storage Protein Accumulation and Its Biosynthesis Metabolism for Rice Plants Under Different Nitrogen Application Levels

HAN ZhanYu,WU ChunYan,XU YanQiu,HUANG FuDeng,XIONG YiQin,GUAN XianYue,ZHOU LuJian,PAN Gang,CHENG FangMin

表2 不同温度氮肥处理组合下稻米蛋白含量、谷/醇比、直链淀粉含量和千粒重等指标的差异

Table 2 Differences in grain total protein content, glutelin/ prolamin, amylose content, and some spikelet characters among different temperature-nitrogen treatments

品种 Cultivar 处理Treatment 每盆穗数 Panicle number per pot 每穗实 粒数 Spikelets per panicle 千粒重 1000-grain weight (g) 结实率 Seed setting rate (%) 每盆产量 Yield each pot (g/pot) 糙米率 Brown grain rate (%) 整精米率 Head milled grain rate (%) 垩白度 Grain chalky degree (%) 直链淀粉含量 Amylose content (%) 粗蛋白 含量 Protein content (%) 谷/醇比 Glutelin/ Prolamin 秀水134 Xioushui134 LN-NT 15.8b 126.4b 21.54bc 82.89a 43.20b 74.19a 51.41b 7.71d 15.95a 9.04d 7.27c LN-HT 15.3b 99.6d 21.48c 65.80c 32.73c 64.77b 48.29c 62.86a 13.41b 9.97c 8.39a HN-NT 18.7a 136.4a 22.37a 83.18a 57.06a 73.36a 56.62a 15.17c 16.03a 10.24b 7.36c HN-HT 18.2a 109.3c 21.61b 69.64b 42.98b 65.32b 49.83bc 55.09b 12.86c 10.73a 8.18b 秀水09 Xioushui09 LN-NT 16.9b 126.8b 21.69b 85.48a 46.48b 75.20b 51.33b 6.86c 16.56a 8.86c 7.32c LN-HT 16.5b 102.6d 20.15c 67.71d 34.11c 59.46d 42.07d 48.63a 13.64b 10.01b 8.26a HN-NT 19.4a 139.3a 23.49a 82.31b 63.48a 77.86a 60.91a 9.45c 16.62a 9.97b 6.80d HN-HT 19.1a 110.8c 21.54b 70.44c 45.58b 66.17c 45.59c 24.77b 13.81b 11.06a 7.78b