All cultivars had good winter hardiness in xerothermic valley area. Big difference existed in summer hardiness. Millennium could survived 90.9%, Eureka, WL525HQ, WL323ML more than 80%, AlfaKing and Algonquin, 68.7% and 69.6% respectively.

 
  • 供试的6个紫花苜蓿品种在干热河谷地区都能安全越冬;但越夏率差别大;盛世的越夏率高达93.;7%25;游客、WL525HQ的越夏率在90%25以上;苜蓿王、阿尔冈金、WL323的越夏率较低;分别为68
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