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林木良种选育是林业生产的重要内容,为了促进这方面的研究工作,一九七三年建立了全区林木良种选育协作网。几年来,在毛主席革命路线指引下,我区林木良种选育工作有了很大发展,特别是杨树良种选育现已进入一个群选群育新阶段。在优先发展我区乡土良种的同时,又先后从国内、外引进杨树良种和杂种系号四百余个,在全区不同区域类型进行了区域栽培试验和生产试用。通过栽培试验和生产试用,初步选出了一批杨树良种进行繁殖推广,并制定出全区杨树良种区划。现将这方面工作的主要成效和体会概述如下:
Forest seed breeding is an important part of forestry production. In order to promote this research work, the establishment of a collaborative network of tree seed selection and breeding in the whole region in 1973. In the past few years, under the guidance of Chairman Mao’s revolutionary line, great progress has been made in the breeding of forest tree species in our region. In particular, the breeding of poplar varieties has now entered a new stage of mass group breeding. While giving priority to the development of local varieties in our region, we also imported more than 400 poplar varieties and hybrids at home and abroad successively and conducted regional cultivation trials and production trials in different regions of the region. Through cultivation experiments and trial production, a batch of poplar breeds were initially selected for breeding and popularization, and the poplar breed division of the whole region was worked out. The main achievements and experiences in this area are summarized as follows: