论文部分内容阅读
在新栽果树中,常常出现苗木不枯死,但迟迟不发芽,即使发芽,其长势很弱,这就是所说的僵苗。出现僵苗的主要原因有以下几种:一是苗木根系不好,根量少;二是起苗到定植时间长,根系受冻或裸露脱水;三是定植园的土壤不适合砧木生长;四是嫁接的穗芽不萌发,而是在接口下砧木发芽抽枝,这是由于砧木和接穗不亲和或亲和不良造成的。防止僵苗应采取以下措施。
In the newly planted fruit trees, seedlings often appear not dead, but do not delay the germination, even if the germination, its growth is weak, this is said stiff seedlings. There are the main reasons for emergence of stiff seedlings are the following: First, nursery stock root system is not good, the root of less; Second, the seedling to colonization for a long time, the roots of frozen or exposed dehydration; Third, the soil is not suitable for plantation rootstock growth; Grafted sprouts do not germinate, but sprouts shoots under the interface, due to incompatibility or poor affinity between rootstocks and scions. To prevent stiff seedlings should take the following measures.