刈割时间对桂牧一号杂交象草生长性能和品质的影响  

Effect of Cutting Time on Growth Performance and Quality of Hybrid Pennisetum urpureum Guimu-1

作　　者：孟可爱[1] 刘小飞[2] 

机构地区：[1]湖南环境生物职业技术学院艺术设计系,湖南衡阳421005 [2]湖南环境生物职业技术学院生物工程系,湖南衡阳421005

出　　处：《湖北农业科学》2013年第2期384-386,共3页Hubei Agricultural Sciences

基　　金：湖南环境生物职业技术学院院长基金(zz2010-02)

摘　　要：采用单因素随机试验设计,研究了不同刈割时间对桂牧一号杂交象草(Hybrid Pennisetum ur-pureum Guimu-1)生长性能和品质的影响。结果表明,60 d刈割桂牧一号的株高、叶长、叶宽、分蘖数、茎叶比最高,显著高于其他处理;鲜草、干草、粗蛋白和粗纤维总产量以60 d刈割最高,分别为5 526.6 kg/667m2、1 005.9 kg/667m2、128.8 kg/667m2和298.8 kg/667m2;干草中粗蛋白含量为40 d刈割>50 d刈割>60 d刈割,粗纤维含量则相反。The influence of cutting time on growth performance and the quality of hybrid Pennisetum urpureum Guimu-1 were studied by using single factor randomized design.The results showed that the plant height,leaf length,leaf width,tiller number and stem / leaf ratio were all the highest when cutted after 60 d from the first cutting,which were obviously higher than other groups.The total yield of fresh grass,hay,crude protein and crude fiber in 60 d cutting group was also the highest,which was 5 526.6 kg / 667m2,1 005.9 kg / 667m2,128.8 kg / 667m2 and 298.8 kg / 667m2,respectively.But the content of crude protein in the hay of 40 d cutting group was the highest,and in the 60 d cutting group was the least;the rank of content of crude fiber were on the opposite.

关 键 词：桂牧一号杂交象草(Hybrid PENNISETUM urpureum Guimu-1) 农艺性状 产草量 草品质 

分 类 号：S[农业科学]