核桃,柿,板栗等果树,在春天嫁接的时候,常从砧木的剪口处,不断地往外流黑水,影响嫁接的成活率,这为什么呢? 由于春天树木的根系重新活跃起来,发出大量的新根,吸收土壤中的水分和养料,然后输送到地上部分,促使芽苞开放和新梢生长。因而春季树液的流动量较大,所以如果在树干上切一个伤口,就会在伤口处流出“伤流液”,“伤流液”的成分也不相同,一般都含有各种糖类、氨基酸、酰胺、维生素。而核桃、柿、板栗等果树的织组和器官中都含有较多的酚类 Walnut, persimmon, chestnut and other fruit trees, grafted in the spring, often from the cuttings at the rootstock, continue to flow out of black water, affecting the survival rate of grafting, why? As the roots of spring trees re-active, issued a large number The new roots, absorbing soil moisture and nutrients, and then transported to the aerial parts, to promote the bud bud opening and shoot growth. As a result, the volume of sap flow in the spring is larger, so if a wound is cut on the trunk, “wound fluid” is discharged from the wound, and the composition of the “wound fluid” is also different. Generally, Amino acids, amides, vitamins. The walnut, persimmon, chestnut and other fruit trees and organs of the organization contains more phenols