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四、木本植物引种驯化的途径和方法木本植物和草本植物不同,它们的生命周期长,生长连续要几十年,甚至几百年之久,因而评价树木引种的成败,不象草本植物可在当代或短期数年内就能够探明,而要在相当年代才能得出结果。因此,对木本植物引种材料的选择以及驯化方法和措施,就显得非常重要,在这方面从实践中已积累了许多可贵的经验。(一)引种试验材料的选择1.注意引种植物的生态型:不同地区,其生态条件的总体不同,同一种植物如果长期分布于不同的地区,它就会在长期适应过程中形成不同的生态型,当引入地区的生态条件与引种对象的生态期一致时,引种容易
Fourth, the introduction of woody plants and domesticated ways and methods of woody plants and herbs different from their long life cycle, growth for several decades, or even hundreds of years, and thus evaluate the success or failure of the introduction of trees, unlike herbs It can be ascertained in a contemporary or short period of time, but rather in a very young age. Therefore, it is very important to choose the woody plant introduction material and domestication methods and measures, and in this respect, many valuable experiences have been accumulated in practice. (A) the introduction of test material selection 1. Attention to the ecological type of the introduction of plants: different regions, the overall ecological conditions are different, the same plant if the long-term distribution in different regions, it will in the long-term adaptation process to form a different ecology Type, when introduced into the ecological conditions of the region and the introduction of the object of the same ecological period, the introduction of easy