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我省的杂交早稻由于原有组合的熟期过长,较不抗病虫害,致使种植面积逐年下降.1984年,全省各地推广了一些早熟、高产、优质的新组合,种植面积达33.5万亩,平均亩产934斤,扭转了早稻单产徘徊不前的局面,出现了发展杂交早稻的好势头.为了促进我省杂交早稻的发展,两年来,我们对威优64、威优35、威优437三个组合的特性进行了研究和观察,同时,又对6个县市的大面积种植进行了调查.现将我们的调查研究结果,并结合省农业厅布置的全省性正交试验资料,对三个组
Early hybrid rice in our province due to the original combination of the maturity is longer, less resistant to pests and diseases, resulting in reduced acreage year by year.In 1984, the province to promote a number of precocious, high yield, high quality new combinations, planting area of 33.5 hectares , An average of 934 kg per mu, reversed the early hybrid rice production stagnated, there has been a good momentum of development of hybrid early rice.In order to promote the development of early hybrid rice in our province, two years, we Weiyou 64, Granville 35, Granville 437 characteristics of the three combinations were studied and observed, at the same time, a large area of 6 counties and cities were surveyed.According to the results of our investigation and research, combined with the Provincial Department of Agriculture arranged orthogonal test data , To three groups