Studies On Yield And Quality Character Of Ramie (Boehmeria Nivea L.) Germplasm For Forage

The study on feeding Ramie is being at the start stage , it is few research on yield and quality of feeding ramie at home and abroad,so it is studied on yield and quality of feeding ramie selecting 33 varieties from the national China grass idioplasm resources in this paper . The yield character involves fresh weight,fry weight , the ratio of leaf to stem and so on;the qaulity character crude protein content (CP), crude fiber content (CF), ether extract content (EE),crude ash content (CA), phosphorus content (P), calcium content (Ca). The analysis of quality character uses the national standard method.The genetic variance and correlation in varieties are studied,they are also evaluated economic value for feeding of 33 varieties.The research showed as follows:The simple correlation analysis between yield character and quality character indicates that: the crude ash content and calcium content exist extremely obvious positive correlation, the correlation coefficient is 0.6257;the ratio of leaf to stem and the crude fiber content assumes the extremely remarkable inverse correlation, the correlation coefficient is 0.4574; The fresh weight and the dry weight character exist positive correlation, the correlation coefficient is 0.3643; The fresh weight and the ratio of leaf to stem, the dry weight and the crude protein content, the crude protein and the crude fiber character exist the remarkable inverse correlation, the correlation coefficient is 0.3547, 0.3278, 0.4079.Intigrative yield and quality character were appraised by cluster analysis ,they are showed that Lianyuanzhugenma,Linshuiyema,Qingzhuma,Qingmazhu,Wushanxianma,Tianzhuqingma,Liangpingqingma,Luxianqingpi,Langxingxiyelv are suitable for feed development .Through statistical analysis on hybrid descendant's yield and the quality character , it is demonstrated that hybrid descendant's character is mainly controled by genetic factor , the yield and the quality character exist rich variance, hereditary change coefficient of the biological yield, EE, the fresh biological yield in which are bigger. Better feeding ramie variety may be cultivated through selecting excellence parent.