Adaptability and Performance Test of Large BerryCultivars of Sea Buckthorn

Adap tability and comp rehensive evaluation of 12 Russian Cultivars and 1Mongolian Cultivar of Sea buckthorn (Hippophae rham noides) were studied at 3 sites, Shuiling of Heilongjiang, Dengkou of InnerMongolia andYongshou of Shaanxi. The results showed: (1) The main affection factorwas environmental factor for the adap tability of Large Berry Cultivars of Sea Buckthorn. In the development of Large Berry Cultivars of Sea Buckthorn, geographical location must be considered firstly; when the p lanting p lace determined, then the breed needed to be selected according to their adap tability. ( 2) The adap tability of Large Berry Cultivars of Sea Buckthorn originatedfrom high latitude had the decreasing trend with the decreasing of latitude in China. Trial p lots of Shuiling, Dengkouand Yongshou belonged to the best adap table introduction region, the adap table introduction region and theun2adap table introduction region. ( 3) In Shuiling trial p lot, the Large Berry Cultivars of Sea Buckthorn with thefruit p roduction above 4 500 kg·hm-2 were Chuyi, Hunjin, Yousheng, Chengse, Aertaixinwen, Wulangemu; In Dengkou trial plot, the Large Berry Cultivars of Sea Buckthorn with the fruit p roduction above 6 000 kg·hm-2 wereChuyi, J inse and Yousheng, these introduced breedswere worthy of vigorously develop ing. (4) The adap tability region ofLarge Berry Cultivars of Sea Buckthorn in China could be divided into 3 regions: the best adap table introduction region, such as Shuiling County, the adap table introduction region such asDengkou County and the cultivationtaming region such as Yongshou County.