增施穗氮肥缓解水稻穗分化期高温伤害的生理机制研究

闫娜, 谢可冉, 高逖, 胡秋倩, 崔克辉

Physiological Mechanism of Increased Panicle Nitrogen Fertilizer Application on Alleviating High-Temperature Damage during the Rice Panicle Initiation Stage

Yan Na, Xie Keran, Gao Ti, Hu Qiuqian, Cui Kehui

图2 幼穗分化期高温下增施穗氮肥对水稻花粉和颖花育性的影响 不同小写字母表示同一品种在不同温度、不同穗氮肥处理下同一性状在P < 0.05水平上差异显著（LSD法）。ns表示在P < 0.05水平无显著差异；“*”、“**”和“***”分别代表在P < 0.05、P < 0.01和P < 0.001水平存在显著差异。

Fig.2 Effects of the increased panicle nitrogen application rates on rice spikelet and pollen fertility under high temperature treatment during panicle initiation stage Different lowercase letters indicate the difference significance at the P < 0.05 level (LSD test) across the different temperature and different nitrogen panicle fertilizer treatments for the same variety. ns represents no significant difference at P < 0.05 level;“*”,“**”and“***”represent the significant differences at P < 0.05, P < 0.01 and P < 0.001 levels, respectively.