A preliminary study on yield and quality comparison between annual leguminousforage and fast growing alfalfa in Anhui Province
In the middle-lower Yangtze River,as does not adopt to humid and hot environment,fast growing alfalfa(Medicago sati-ve.L.)varieties with high fall-dormancy are often used as annual legumes.In this study,we compared the yields and forage qualities of Medicago polymorpha L.,Vicia villosa Roth cv.Wanshao 3 and V.sativa L.as annual legume with fast-growing alfalfa L M.sativa L.cv.SARDI 10 to provide scientific basis for the development and utilization of high quality legume forage in Anhui province.The results in-dicated:At the early bloom stage,the DM yield of M.polymorpha L.and V.sativa L.ranged from 5380.00kg/hm to 9640.00kg/hm and 5032.00kg/hm to 9840.00kg/hm respectively,which was 1.95 to 2.21 and 1.82 to 2.26 times of that of M.sativa L.cv.SARDI 10 respectively.Meanwhile,the CP content of M.polymorpha L.is up to 32.79%at early flowering stage,which was significantly higher than that of V.villosa Roth,V.sativa L.cv.Wanshao 3 and M.sativa L.cv.SARDI 10(P<0.05).The RFVs of M.polymorpha L.is consistently higher than 130,even at the pod stage,meanwhile that of V.villosa Roth cv Wanshao 3,V.sativa L.ranged from 105.34 to 179.18,95.34 to 174.66,respectively,from the early bloom stage to the pod stage.The RFVs of alfalfa was 122.98(Middle bloom)to 173.88(Vegetative growth),indicated a constantly high forage quality.In general,M.polymorpha L.is characterized with higher yield and better forage quality compared with alfalfa and two other forages.Overall,the preliminary study showed that the yield and feeding value of M.polymorpha L were better than that of alfalfa Sardi 10 when used as annual legume,and has high potency in Anhui Province.Development and utilization of annual legume forage germplasm with high yield and high quality have great potential and high sig-nificance.
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