杨树人工有性杂交技术

• 机 构: 本所森林系良种选育研究室,
• 出 处: 宁夏农业科技
• 发表日期: 1974年02期
• 关键词: 杂交亲本 有性杂交 杨树 生态特点 盐碱地区 抗性 性状 传递能力 花穗 钻天杨

一、杂交亲本的选择进行有性杂交工作时,必须首先选择适合的亲本。选择杂交亲本的原则是:根据育种的目标,在了解和分析原始材料和特性传递能力、发育过程、生态特点等基础上,选择具有所需要性状和特征的植株,并通过杂交能互相弥补其缺点的植株作杂交亲本。如欲培育适应干旱山区、沙漠荒地、盐碱地区的品种,就应选择具有抗旱、耐盐碱等特性的树种作杂交亲本。如欲培育速生丰产,具有抗性的新品种,就应选择具有上述特性的树种作为杂交亲本,

First, the choice of hybrid parent sexual hybridization work, we must first select the appropriate parent. The principle of selecting hybrid parents is that based on the goal of breeding, plants with the desired traits and characteristics are selected based on the understanding and analysis of the original materials and their ability to transmit, development and ecological characteristics, and the hybrids can make up for their shortcomings Of the plants for hybrid parents. If you want to cultivate the varieties that adapt to the arid mountainous area, the desert wasteland and the saline-alkali area, you should choose the tree species with drought resistance, salt tolerance and other characteristics as hybrid parents. If you want to cultivate fast-growing, resistant new varieties, we should choose the above characteristics of the tree species as hybrid parents,