饲草高粱南方区试研究

目的]筛选优质饲草高粱品种。方法]运用随机区组排列,正常南方大田管理,研究了7个品种的生育性状、植物学性状和产量表现。结果]7个品种生育期差异不大,均在185~190 d;芽鞘、幼苗、叶脉颜色无差别;晋农大甜饲杂1号的分蘖数为3个,其他品种为4.5或5个;辽草3号、晋农大甜饲杂1号的中部茎粗最大,均为1.7 cm;晋草5号穗长的最长为39.5 cm,辽草3号及晋草5号的穗粒重较高,分别为20.21、9.5 g,晋草4号的千粒重较高16.1 g。2次刈割时,晋草5号株高均最高,分别是203和358 cm;晋草5号的生物产量最高为99 672 kg/hm2,比对照皖草2号增产27.67%。结论]晋草5号是一个难得的饲草高粱新品种,可以在华南地区大面积推广应用。

Research on Forage Sorghum in Southward Regional Trial

Objective] This research aimed to screen out forage sorghum varieties with high quality.Method] In the field test with random block arrangement and normal field management,the growing characters,botany characters and yield of 7 varieties were investigated.Result] The growth period of 7 varieties had a slight difference and varied from 185 to 190 d.The color of coleoptile,seedling and vein was similar.Jinnongdatiansiza 1 had 3 tillers, while other varieties had 4.5 or 5 tillers.The middle stem diameter of Liaocao 3 and Jinnongdatiansiza 1 was biggest,being 1.7 cm.Spike length of Jincao 5 was longest,being 39.5 cm.Spike kernel weight of Liaocao 3 and Jincao 5 was higher,being 20.2 and 19.5 g resp.The biological yield of Jincao 5 was highest,being 99 672 kg/hm2 and increased by 27.67% than that of CK Wancao 2.Conclusion] Jincao 5 was a new excellent forage sorghum variety and should be expanded and applied in south China region.