| This study of 30 alfalfa (Medicago sativa L., Medicago varia Person) Medicago falcata L.) materials which is applying in large area inproduction,related index of growing characters,quality were measured,yield,quality were focused on to evaluated them synthetically with two method.This research conducted in order to supply high yield,good quality,applicable alfalfa materials, to give the element science basis for agriculture production. At the same time this research give a first-hand meter of alfalfa cultivar evaluation for breeding research.The results as follows:At first harvest, YLU.17, Zhongyuan 1 had obvious height advantage over other tested materials; YL701 had the fastest growth rate, reaching to 2.16cm/d; yield of individual plant of YLL.10 reached to 1232.2 g/strain, and had obvious advantages compared to other varieties; YLL.10 had obvious advantages than other tested materials on number of branches of individual plant; material YL701 had better plant structure.After at first harvest, West 8.22, Combination 6, Cold-resistant alfalfa, Gongnong 3, YL701, YL.3.8 had higher height of the regeneration; Cold-resistant alfalfa alfalfa, Public farming 3, YL.3.8 had faster regeneration rate; re-growth branches number of individual plant of YLL.10 was significantly different from other tested materials; West 8.22, Central Plains 3, Combination 6, Public agricultural 3, YL.3.8.17 had higher re-fresh weight of individual plant. Comparison of the relevance of 4 harvests, branch number, branch number of regeneration and height of regeneration, growth rate, re-growth rate was a significant negative correlation at 0.01 level; the total weight of plant and height of plant, re-growth height, growth rate, regeneration rate, branch number,re-growth branch number, community structure showed significant positive correlation at 0.01 level. Plant structure and total weight of per plant were the highest correlation; Branches were second; height was the third; Regeneration rate was the lowest correlation.Four harvest height:the harvest had maximum height; Four harvest growth rate: the second harvest had the fastest growth rate;Four harvest branches:the first harvest of f individual branches number had the minimum, the third harvest had the maximum of individual branches number; four harvest plant weight:individual weight of first harves was the highest, individual green grass yield of four harvest was reduced by the trend.Crude protein content of 30 tested materials achieved a standard above all, materials reaching to the standard premium accounted for 90% of the total tested materials; Crude fiber met more than three standard above all, accounted for more than 70% of the total tested materials; Crude ash content reached more than one standard. Phosphorus content of Roots-type alfalfa, YLL.10, had obvious advantages over other materials. Calcium content of Monarca SPI12 had obvious advantages over other materials.Comprehensive comparison of 30 alfalfa materials, the results of the classification score is:Growing characters traits of YL 701, YLU.17, Zhongyuan3, YL.3.8 had obvious advantages; YLL.10 had obvious advantages over other materials in branches, renewable branches, individual green grass yield, considered only from the output, were the materials of high yield; Nutrient of Rhizome type alfalfa, Combination 6, Monarca SPI12, YLL.10, Zhungeer alfalfa, had obvious advantages compared with other materials. The results with initial weighted method is:YL701, YLU.17, YL.3.8, YL.3.8.17, Tianshui Alfalfa have good growing characters. YL701 had high yield, fast-growing rate; Roots-type alfalfa, Monarca SPI12, YLL.10,Combination 6, Zhungeer had high quality. Especially quality of Roots-type alfalfa had obvious advantages. Yield and quality of YL701, YLU.17, YL.3.8, West 8.22, Central Plains 3, were higher than other materials; particular yield and quality of YL701 had obvious advantages,were the material with overall optimum of yield and quality. |
