Study on ecological adaptability of the three introduced alfalfa cultivars in semi-arid area
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DOI：10.7606/j.issn.1000-7601.2004.01.26
Key Words: alfalfa  introduced cultivar  resistance  ecological adaptability
Author NameAffiliation
HAN Lu Agricultural Research Center in the Arid and Semi-arid Areas，Northwest Sci-Tech University of Agriculture and Forestry，Yangling，Shaanxi 712100，China；Institute of Plants Science and Technology，Tarim Agriculture Reclamation University，Alar，Xinjiang 843300，China 
JIA Zhi-kuan Agricultural Research Center in the Arid and Semi-arid Areas，Northwest Sci-Tech University of Agriculture and Forestry，Yangling，Shaanxi 712100，China 
HAN Qing-fang Agricultural Research Center in the Arid and Semi-arid Areas，Northwest Sci-Tech University of Agriculture and Forestry，Yangling，Shaanxi 712100，China 
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Abstract:
      The experiment was conducted in2years to evaluate the growth characteristics，resistance， root system development ability，forage yield and nutritive value of three introduced alfalfa cultivars and Xinjiang large-leaf alfalfa．The results showed that the introduced cultivars performed better in the above characteristics than that of the domestic cultivar （ CK） ，in which，the cultivar of Vector showed the advantage of early maturity，strong regrowth ability，good resistance，high fresh forage yield，high content of crude protein and strong ecological adaptability，and it was an ideal cultivar to be extended on large scale in the semi-arid areas．
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