Ideal panicle height under global warming from the view point of pollination and yield

以高温小花不育多发的中国水田水稻为研究对象，研究了穗部位置和群落结构对小花不育发生的影响。模拟试验结果表明，40cm处小花的育性低于40cm处小花的育性。振动恢复40 cm深度的种子，保证授粉，表明冠层内低风导致授粉不良和不育。

Effects of position of panicle and structure of community on occurrence of floret sterility were examined with rice plant in the paddy field in China where the high temperature induced floret sterility often occurs. Simulated experiment showed that fertility of floret flowered at 40cm depth was lower than those flowered higher position. Recovery of the seed set at 40 cm depth by vibration that ensure the pollination suggest that the low wind inside of the canopy induce the poor pollination and sterility.