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近几年来,我区核桃嫁接技术的研究和推广,已取得了一定效果,尤其是夏秋季的芽接(矩形、大方块和套接)技术,一般都能掌握。但对春季的枝接,尚存在不少问题,成活率甚低。据观察分析,在我区春季,核桃展叶前,嫁接没有伤流。嫁接成活率低的主要原因,不是伤流影响,而是低温和春旱。据资料介绍,核桃愈合组织生长的适宜温度是25—30℃,在
In recent years, my area of walnut grafting technology research and promotion, has achieved some results, especially in summer and autumn budding (rectangular, big box and socket) technology, generally can grasp. However, there are still many problems with branches in the spring, with very low survival rates. According to observation and analysis, in our district in spring, before walnut leaf expanse, grafting no wounds. The main reason for the low survival rate of grafting is not the impact of injury, but low temperature and spring drought. According to information, the optimum temperature for the growth of walnut healing tissue is 25-30 ℃