论文部分内容阅读
GT1是印尼在1922年从东爪哇普通实生树群中选出的初代无性系,1963年引入云南垦区,随后作为大规模种植品系推荐于全省。通过各种不同生态类型区的生产性种植和经历1967/68,1970/71,1973/74,1975/76年四个冷冬的考验,GT1荣获四大品系耐寒之冠,在各垦区迅速扩大使用。但由于对GT1在不同环境的适应性缺乏充分认识,以致把它滥
GT1 is the first generation clones of Indonesia selected from the common tree species of East Java in 1922 and was introduced into Yunnan reclamation area in 1963 and subsequently recommended as a large-scale planting line in the province. Through the productive cultivation of various ecotype areas and the four cold winters of 1967/68, 1970/71, 1973/74 and 1975/76, GT1 won the highest cold tolerance of the four major lines and rapidly expanded in all reclamation areas use. However, due to the lack of full understanding of the adaptability of GT1 in different environments, it is indiscriminate