马尾松遗传改良的成就、问题和思考

经过３个连续５年的协作攻关研究，马尾松遗传改良和良种生产获得了重大进展。本文简要介绍在地理变异和种源选择、生产群体和育种群体建设、无性繁殖和无性系育林、工业用材树种定向选育、育种策略和一些基础性研究方面的主要成就，对种源研究和推广、有种区划分、优良基因资源保护和利用、建园技术和种子生产、造纸材定向选育、抗性育种、遗传参数估算、基因型与环境互作、早期选择、育种计划和方案制定等诸多领域中存在的问题进行

Achievements, Problems and Its Countermeasures of Genetic Improvement of Masson Pine

Great progress has been made in the genetic improvement and seed production of masson pine through the cooperative researches during the last 3 Five Year Plans of China. In this paper we briefly review the major achievements including geographic variation and provenance selection, establishment of production population and breeding population, vegetative propagation and clonal forestry, directional selection of industrial timber, breeding strategy and some basic research items,emphatically discuss and analysize the existing various problems in the researches and production practices on provenance study and extension,breeding zone development,protection and utilization of superior gene resources, techniques for seed orchard establishment and seed production, pulp wood selection, resistance breeding, genetic parameter estimate, genotype by environment interaction,early selection, breeding plan and programme etc., and put forward certain views to benefit the future breeding of masson pine in China