Introduction And Adaptability Evaluation Of Four Foreign Alfalfa Varieties In Tumochuan Region

In order to screen out the alfalfa varieties suitable for planting in Tumochuan area,4 foreign alfalfa varieties were introduced into this experiment,and the field comparative experiment of domestic variety Gongnong NO.1 was earied out for 3 consecutive years(2016-2018),and the biological characteristics,photosynthetic performance,production performance and nutritional quality of different varieties were compared and analyzed.The results showed that all the tested alfalfa varieties could survive the winter in the tumochuan area.The photosynthetic performance of single leaf of Longwei 6010 and Gongnong NO.l was better than Barricade,Magnum Salt and Magnum CR.Subordinate function analysis method is used to test the adaptability of alfalfa varieties in Tumochuan region comprehensive evaluation,the results show that the spot in Longwei 6010,Barricade,Magnum CR comprehensive qualities are higher than domestic alfalfa varieties and Gongnong NO.1 can be used as the region is suitable for the introduction of cultivated varieties,including Longwei 6010 is the production of good performance,high nutritional value of the optimal varieties.