文献类型：期刊文献

中文题名：1年生楸树无性系苗期生长特性

英文题名：Growth Traits of One-Year-Old Catalpa bungei Clones in Seedling Stage

作者：麻文俊[1] 张守攻[1] 王军辉[1] 张建国[1] 赵鲲[2]

第一作者：麻文俊

机构：[1]林木遗传育种国家重点实验室,中国林业科学研究院林业研究所;[2]河南省洛阳市林业科学研究所

年份：2012

卷号：25

期号：5

起止页码：657-663

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：林业公益性行业科研专项经费项目(201104001);农业成果转化资金项目"珍贵用材树种楸树优良新品种的中试与示范"(2008GB24320414)

语种：中文

中文关键词：楸树;无性系;生长模式

外文关键词：Catalpa bungei; clones; growth pattern

分类号：S718.4

摘要：In order to study the growth traits of Catalpa bungei clones in various growth periods during the nursery stage so as to provide a theoretical basis for genetic improvement,the authors matched the height and diameter in nursery stage by Logistic equation.The results showed that the mean height of clones was 325.19 cm,with the range of 253.48-402.88 cm,the mean basal diameter of clones was 4.29 cm,with the range of 3.61-5.05 cm.The height increment could be divided into two stage,i.e.the early-growing period and the fast-growing period,while the basal diameter increment could be divided into three stage,i.e.the early-growing period,the fast-growing period and the late-growing period.The beginning of fast-growing period,the end of fast-growing period,the duration of fast-growing period,and the daily mean height increment in fast-growing period were May 26-July 2,September 11-October 15,72-128 days,and 1.70-2.88 cm,while that for basal diameter increment were May 9-June 5,August 23-October 3,95-138 days,and 0.021-0.032 cm.The variation of traits in fast-growing period was more significant.The height and basal diameter were significantly correlated to their increments in earlygrowing period(0.744,0.928),fast-growing period(0.965,0.804),and their daily mean increment in fastgrowing period(0.733,0.811).
In order to study the growth traits of Catalpa bungei clones in various growth periods during the nursery stage so as to provide a theoretical basis for genetic improvement,the authors matched the height and diameter in nursery stage by Logistic equation.The results showed that the mean height of clones was 325.19 cm,with the range of 253.48-402.88 cm,the mean basal diameter of clones was 4.29 cm,with the range of 3.61-5.05 cm.The height increment could be divided into two stage,i.e.the early-growing period and the fast-growing period,while the basal diameter increment could be divided into three stage,i.e.the early-growing period,the fast-growing period and the late-growing period.The beginning of fast-growing period,the end of fast-growing period,the duration of fast-growing period,and the daily mean height increment in fast-growing period were May 26-July 2,September 11-October 15,72-128 days,and 1.70-2.88 cm,while that for basal diameter increment were May 9-June 5,August 23-October 3,95-138 days,and 0.021-0.032 cm.The variation of traits in fast-growing period was more significant.The height and basal diameter were significantly correlated to their increments in earlygrowing period（0.744,0.928）,fast-growing period（0.965,0.804）,and their daily mean increment in fastgrowing period（0.733,0.811）.