皇草种根繁殖技术研究  

Propagation Technique of Seed Root of Pennisetum sinense

作　　者：赵明坤[1] 韩永芬[1] 刘正书[1] 

机构地区：[1]贵州省草业科学研究所,独山558200

出　　处：《贵州农业科学》1999年第5期42-43,共2页Guizhou Agricultural Sciences

基　　金：贵州省农业厅资助

摘　　要：通过对已出苗皇草种根带老蔸和不带老蔸,每窝一、二、三苗及不同月份每窝二苗以及未出苗老蔸繁殖的成活率和分蘖数的研究,结果表明:不带老蔸种根成活率三苗最高为94.7% ,一苗最低为54.0% ,繁殖系数二苗最高为374.3% ,三苗分蘖最高为11.0;带老蔸种根的成活率一苗为97.3% ,二苗和三苗均为100% ,繁殖系数一苗最高为788.3% ,三苗分蘖最高为15.3。不同月份中的种根繁殖系数4～6 月较高,分别为374.3% ,396.6% 和494.7% ,其中6 月最高。出苗前的皇草种根繁殖,成活率稍低为75.0% ,分蘖数较多为9.2。The survival rate and tiller numbers of different seed root materials of Pennisetum sinense were studied. The results showed as follows: The survival rate of no old root stool propagation with 3 seedlings was the highest (94.7%) and with 1 seedling was the lowest (54.0%), the highest propagation coefficient of 2 seedlings was 347.3%, the highest tiller number of 3 seedlings was 11.0. The survival rate of the old root stool propagation with 1 seedling was 97.3%, and both of with 2 and 3 seedlings were 100.0%, the highest propagation coefficient of 1 seedling was 788.3% and highest tiller number of 3 seedlings was 15.3. Higher seed root propagation coefficient of 4～6 month in different month were 374.3%, 396.6% and 494.7%, of which 6 month was the highest. The unbudded seed root propagation showed lower survival rate (75%) and higher tiller number (9.2).

关 键 词：皇草 种根繁殖 成活率 分蘖数 

分 类 号：S543.903.2[农业科学—作物学]