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1983年6月—11月我在宿松县蹲点,对四个典型联系户双晚杂交稻全生产过程进行了系统观察记载,结合面上生产调查,初步看出每亩800斤左右的高产结构有三种类型: 一是多穗型.每亩有效穗,汕优6号在24万左右,四优6号在25万左右;每穗实粒数为65—75粒;千粒重25克左右.大田生产中这种类型还不多. 二是大穗型.每亩有效穗,汕优6号18万左右,四优6号19万左右;每穗实粒数,汕优6号90粒以上,四优6号85粒以上;千粒重25克以上.大田生产中这种类型较多.
From June to November 1983, I spent time in Susong County, systematically observed and recorded the production process of the four typical double hybrid rice hybrid rice in the past year. Based on the production survey on the surface, we initially found a high-yield structure of about 800 kg per mu There are three types: First, more panicles. Effective per acre, Shanyou 6 at around 240,000, Siyou 6 at about 250,000; grains per spike 65-75; grain weight 25 grams. The production of this type is not much .Second, big panicle type.Effective panicle per acre, about 180,000 Shanyou 6, Siyou 6, about 190000; grain number per panicle, Shanyou 6th 90 or more, Siyou 6 more than 85 grains; grain weight more than 25 grams. This type of field production more.