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胡桃木材坚硬、致密,用途广。种子富合大量油分,经济价值高,最为群众欢迎。但该树种唯一缺点是幼苗期间主根发达(长达3尺以上),侧根稀少,且多分布于地表20匣米以下,造成掘苗困难,栽植后成活率较低。为了克服这种缺点,提高胡桃造林成活率,53年我们进行了胡桃切断胚根播种试验,获得初步效果。一、试验方法将胡桃浸种五日,混砂催芽。待种皮开裂,胚根伸出约2～3厘米时,以锐利之刀切去胚根尖部0.5厘米,然后立即播种。
Walnut hard, dense, wide use. Seeds rich with a large amount of oil, high economic value, the most popular. However, the only disadvantage of this tree species is the development of main roots (up to 3 feet) during the seedling stage, sparse lateral roots, and more than 20 box meters below ground surface, resulting in difficulty in seedling digging and low survival rate after planting. In order to overcome this shortcoming and improve the survival rate of walnut afforestation, we carried out the cutting experiment of walnut seedling cutting in 53 years and obtained the preliminary results. First, the test method Walnut seed soaking five days, sand sprouting. To be seed coat cracking, radicle extension of about 2 to 3 cm, with a sharp knife cut radicle tip 0.5 cm, and then immediately sow.