饲草高粱南方区试研究

Research on Forage Sorghum in Southward Regional Trial

[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/hm^2,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。

[ 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/hm^2 and increased by 27.67% than that of CK Wancao 2. [Conclusion] Jincao 5 was a new excellent forage sorghtan variety and should be expanded and applied in south China region.