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随着农业生产的全面发展,在今后一段时期内,我们宜春地区水稻的种植面积将稳定在一定比例上,水稻增产的主要途径将是主攻单产。因此,选育出比现有推广品种产量有所突破的高产品种,是当前水稻育种工作最根本的任务。如何选育高产水稻品种?根据目前国内外育种专家的看法,从选育的类型上来说,大致分为大穗型、大粒型和多穗型三大类型。从我国七十年代早稻育种进展情况来看,南方稻区十六个省(市)区联合区域试验鉴定,供试品种共二十八个,历时七年,只有广陆矮四号、
With the all-round development of agricultural production, the planting area of rice in Yichun will stabilize in a certain proportion in the coming period. The main channel for increasing rice production will be the main yield. Therefore, bred higher than the current varieties of popularized varieties of high-yielding varieties of rice breeding is the most fundamental task. How to breed high-yielding rice varieties? According to the current domestic and foreign experts in breeding view, from the type of breeding, broadly divided into large-panicle type, large grain type and multi-spike type. Judging from the progress of early rice breeding in China in the 1970s, the joint trial of 16 provinces (cities) and districts in the southern rice area has been conducted. Twenty-eight varieties tested, which lasted seven years. Only Guanglu Dwarf,