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过去我们在海南岛进行大豆冬育加代,不但成本高,而且风土差异大,不合理想.为此,1979～1981年,我们进行大豆早世代就地加代试验,缩短了育种年限,为提早育成新品种提供了有利条件. 一、材料与方法(一) 试验材料:1979年用一个土温池加代15个组合,850株.1980年用六个土温池加代56个组合,4200株.1981年仍用六个土温池加代83个组合,6072株. (二) 土温池规格:池长10米、宽1.5米,南墙高0.8米、北墙高1.2米.池
In the past, we carried out soybean winter breeding in Hainan Island, not only the high cost, but also the difference of terroir, not ideal.For this reason, from 1979 to 1981, we carried out on-site early generation soybeans test, shorten the breeding period, First, the material and methods (a) test materials: 1979 with a soil temperature pool plus 15 combinations, 850. In 1980 with six soil temperature pool plus 56 combinations, 4200. 1981 Still use six soil temperature pool plus 83 combinations, 6072. (two) soil temperature pool specifications: pool length of 10 meters, 1.5 meters wide, 0.8 meters high south wall, north wall 1.2 meters high.