行距和播量对白三叶生育及种子产量的影响  

Effect of Row Spacing and Sowing Rate on the Growth and Seed Yield of White Clover

作　　者：吴维群 唐宗英[2] 邓菊芬 张英俊[3] 黄必志[4] 耿文成[5] 

机构地区：[1]云南省草山饲料工作站,昆明650225 [2]云南农业大学,昆明650201 [3]中国农业大学草地研究所,北京100094 [4]云南省肉牛和牧草研究中心,昆明650212 [5]云南省种羊场,昆明655204

出　　处：《草地学报》2006年第2期116-119,共4页Acta Agrestia Sinica

基　　金：云南省校省院科技合作项目(BFE00A002)

摘　　要：研究行距和播种量对白三叶(T rif olium rep ens L.)生长发育及种子产量的影响。结果表明:行距和播量影响白三叶的生育进程,随着播量和行距的增大,生育时期延长,冠层高度、生殖枝高度和种子产量增加;各处理干物质分配规律不同,在收获时,处理2的花和种子比例最大,分别达34.93%和12.98%;处理3种子产量最高,其潜在和实际种子产量分别达1046.2和443.1 kg/hm2。A study of the effect of row spacing and sowing rate to white clover shows that the higher the sowing rate and wider the row space, the longer the plant growing period, and taller the height of canopy and reproductive branches, and more abundant the seed yield. Different treatments of cultivated white clover varied the percentages of dry matter distribution in the root, the stem, and the leaf calculated in the harvesting stage. The percentage of dry matter distribution in the flower and the seed under Treatment 2 reached 34.93% and 12.98% respectively, the highest of all. Treatment 3 topped the others in seed yield, its potential seed yield amounted to 1046.2 kg/hm^2 and its harvested seed yield, 443.1 kg/hm^2.

关 键 词：行距 播量 白三叶 生长发育 种子产量 

分 类 号：S812[农业科学—草业科学]