论文部分内容阅读
核桃砧木新品种‘中宁强’是由美国引进的魁核桃(Juglans major)与河南省洛宁县核桃(Juglans regia L.)杂交选育而成。具有树干通直,根系发达,分枝力强,生长速度快,抗干旱,耐瘠薄,嫁接亲合力高等特点,年胸径生长量1.7 cm,为核桃的1.7倍。嫩枝扦插生根率85%,作砧木嫁接核桃品种的枝接成活率90%以上,芽接成活率95%,嫁接的核桃品种表现出生长势旺盛,坚果仁更加香甜。适宜在华北、西北、华东和西南核桃主产区应用。
The new walnut rootstock ’Zhongningqiang’ was bred from the cross between Juglans major introduced by the United States and Juglans regia L. from Henan Province. With trunk straight, developed root system, branching power, fast growth, drought resistance, infertility, grafting affinity characteristics, annual diameter growth of 1.7 cm, 1.7 times for the walnut. The rooting rate of shoots was 85%, the survival rate of branches for grafting walnut varieties was above 90%, and the survival rate of budding was 95%. The grafted walnut varieties showed strong growth and nuts were more sweet. Appropriate in North China, Northwest, East China and Southwest walnut applications.