两系法杂交稻65396关键期的气象指标及其在江苏的气候适应性

Meteorological Indexes of Critical Stages and Climatic Adaptation in Jiangsu in Two-Line Hybrid Rice 65396 (Peiai 64S/E32)

根据两系法杂交稻 6 5 396 (培矮 6 4S/E32 )在南京和镇江两地的分期播种资料 ,选择与产量密切相关的 5个高产关键期 ,用回归统计分析方法组建气象响应模型 ,得出各高产关键期的最适气象条件值 ,并据此用江苏省赣榆、徐州、高邮、南京、常州、溧阳、苏州等 7个地区 195 1～ 1992年的气象资料 ,在对高产关键期预测的基础上 ,计算了 4种茬口各产量构成因素的气候值。与最适气候值比较后提出了相应的高产技术措施。

In terms of data on stage sowing experiments with two-line hybrid rice 65396 (Peiai 64S/E32) in Nanjing and Zhenjiang, in which the five critical stages closely related to high yield were chosen, the meteorological respondence models were established by regression analysis and the optimal meteorological conditions for the different critical stages of high yield were estimated. Using the meteorological data (1951～1992) from seven districts in Jiangsu province, namely Ganyu, Xuzhou, Gaoyou, Nanjing, Changzhou, Liyang and Suzhou, the yield-built climate elements for four rotations were estimated respectively on the base of calculating the critical stages of high yield. The appropriate technic measures for high yield compared with the optimal meteorological conditions were recommended.