论文部分内容阅读
目前多数核桃树为实生繁殖,占地多而所产核桃售价低贱。由于未采用优良品种的嫁接植株,果农不敢轻易决定栽植核桃林,因此核桃业已日居落后。核桃无性繁殖的成效一般不如其他温带果树为佳,科研人员试验过不同的嫁接和芽接法,其成效各不相同。所以,选定一个适宜的繁殖方法是发展核桃的先决条件。据此,印度的Chauhan等人,于1977和1978两年研究了田间条件下镶接和其他嫁接方法的效果。镶接于七月最后一周进行,而舌状腹接、舌接、根接、根冠接、覆土根冠接、劈接均在一月最后一周休眠期时进行。以干周1.0—1.5厘米粗的一年生核桃实生苗作砧木;接穗选用薄壳品种“Gobinda”。休眠期
At present, the majority of walnut trees for real breeding, covers an area of more than the price of walnuts cheap. Due to not using the fine varieties of grafted plants, farmers can not easily decide to plant walnut forest, walnut industry has now fallen behind. Clonal walnut asexuality is generally not as good as other temperate fruit trees, and researchers have experimented with different grafting and budding methods, with varying degrees of effectiveness. Therefore, the selection of a suitable breeding method is a prerequisite for the development of walnut. Accordingly, Chauhan et al. Of India studied the effects of inlay and other grafting methods under field conditions in 1977 and 1978. Inlaid in the last week of July, while the tongue abdomen, tongue, root, root crown, soil cover root access, split in the last week of January during the dormancy. To dry weeks 1.0-1.5 cm thick annual walnut seedlings as rootstock; scion selection thin shell species “Gobinda.” Dormant period