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漳州地区杂交水稻制种产量,1987年,虽由亩产40多公斤提高到85公斤,但仍低于全省平均96.5公斤和全国平均亩产128公斤的水平。制种产量不高不稳,制种面积逐年减少,1987年由原来上万多亩制种田下降至2000亩左右。每年都要向外省调进10—150万公斤种子,影响了杂交水稻种植面积的扩大。当前解决高产和高纯度的制种技术对促进杂交水稻进一步发展十分必要。本文着重对闽南杂交稻制种技术问题作若干探讨。一、杂交稻制种最适宜的抽穗扬花期气候在日平均温度27——28℃,相对湿度70—80％。日照充足。根据漳州市气象台1977—1987年十一年气象资料统计,漳州市平原地
Although the output of hybrid rice seed production in Zhangzhou was raised from 40 kilograms per mu to 85 kilograms in 1987, it is still below the provincial average of 96.5 kilograms and the national average yield of 128 kilograms per mu. Seed production is not high and unstable, the area of seed production decreased year by year, from the original tens of thousands of acres of system of farming fell to about 2,000 acres. Every year to transfer 10-1500000 kilograms of seeds to other provinces, affecting the expansion of hybrid rice acreage. At present, it is very necessary to solve the problem of promoting the further development of hybrid rice through the seed production technology of high yield and high purity. This article focuses on the South Fujian hybrid rice seed production technology for some discussion. First, hybrid rice seed production most suitable flowering and flowering climate in the average daily temperature of 27--28 ℃, relative humidity of 70-80%. Sunshine is abundant. According to meteorological data of Zhangzhou Meteorological Station from 1977 to 1987, eleven years of meteorological data, Zhangzhou plain