Cold Area Introducing Presentation of 14 Crataegus Seedlings
Annotatsiya
In cold area at Mudanjiang of Heilongjiang Province,the 14 hawthorn varieties of C. pinnatifida‘Tongtaibaiyesheng',C. pinnatifida‘Kaiyuanruanzi',C. pinnatifida‘Jiangxian- 798201',C. pinnatifida‘Jiangxian- 798203',C. pinnatifida‘Longhuafenrou',C. pinnatifida‘Longhua-795501',C. pinnatifida‘Tianhong',C. pinnatifida‘Yanrangqing',C. pinnatifida‘Mopanshanzha',C. pinnatifida‘Benxi-2',C. pinnatifida‘Benxi- 7',C. pinnatifida ‘Eryizi',C. pinnatifida ‘Yu- 8001',C. pinnatifida ‘Qiujinxing'were introduced. The results showed that,except C. pinnatifida‘Tongtaibaiyesheng'and C. pinnatifida‘Eryizi',other varieties showed fine cold resistance and good pest resistance; the survival rates were all over 70%; C. pinnatifida ‘Yanrangqing',C. pinnatifida ‘Longhua- 795501',C. pinnatifida ‘Mopanshanzha',C. pinnatifida‘Benxi- 7'can be considered generalizing as cold virescence varieties; C. pinnatifida‘Jiangxian- 798203'and C. pinnatifida‘Mopanshanzha'not only have strong seed performance but also the seed rate reached 60% and 70%,that can be considered generalizing as cold edible varieties.