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为了解涝对杂交水稻生长及产量的影响,以杂交中稻丰两优香1号为试材,在拔节期、孕穗期和灌浆期分别设计不同涝淹深度和受涝时间的胁迫试验。结果表明,杂交中稻受涝胁迫后,植株高度、节间长度均增长,灌浆期、孕穗期受涝胁迫后植株高度增长幅度大于拔节期,涝淹深度对植株高度、节间长度的影响大于受涝时间。不同生育期受涝水稻减产顺序表现为孕穗期、拔节期、灌浆期,拔节期和灌浆期受涝时间对产量的影响大于受涝深度,
In order to study the effect of waterlogging on the growth and yield of hybrid rice, stress experiment was carried out with different flooding depth and waterlogging time at the jointing stage, the booting stage and the filling stage by using a hybrid rice named Feng Liang You Xiang No.1. The results showed that the plant height and internode length increased under waterlogging stress in hybrid mid-season rice. The height increase of the plant under waterlogging stress at filling stage and booting stage was greater than that at jointing stage. The effect of flooding depth on plant height and internode length was greater than that under Waterlogging time. The order of decreasing yield of flooding rice at different growth stages was booting stage, the effect of flooding time at jointing stage, filling stage, jointing stage and filling stage on yield was greater than the depth of waterlogging,