良种是林木速生丰产的物质基础和重要环节。中华人民共和国成立后,特别是无产阶级文化大革命以来,全国各地遵照伟大领袖毛主席关于“有了优良品种,即不增加劳动力、肥料,也可获得较多的收成”的教导,广泛开展了林木良种工作,并已收到显著成效。充分证明了在相同土壤条件和营林措施下,采用良种育苗造林,可以提高木材质量和产量,缩短成材年限,减少病虫害,加快“绿化祖国”的步伐。在毛主席无产阶级革命路线指引下,我们根据“以选为主,选、育、引相结合”的林木良种工作方针,引进了林木优良品种,在试验中扩大再生产,使引种、试验和生产紧密结合。现将主要几种林木良种试验情况概述如下: The seed is the material basis and an important part of the fast growing forest. Since the founding of the People’s Republic of China, especially since the Great Proletarian Cultural Revolution, all the people in various parts of the country have followed the guidance of Chairman Mao, the great leader, on “excellent varieties, that can obtain more crops without increasing labor force and fertilizers” Seed work has received significant results. Proved that the same soil conditions and silviculture measures, the use of seedling afforestation, can improve the quality and yield of timber, shorten the useful life, reduce pests and diseases, accelerate the pace of “greening the motherland.” Under the principle of Chairman Mao’s proletarian revolutionary line, we have introduced fine varieties of trees and trees according to the work principle of planting good seeds, which is based on the principle of “electing, selecting, breeding and guiding each other”, so as to expand the reproduction in the experiment so that the introduction, testing and production Closely integrated. Now the main species of forest seed test situation is summarized as follows: