文献类型：期刊文献

中文题名：美国湿地松第3代种子园不同家系育苗与造林试验研究

英文题名：Research on the Pinus elliottii Engelm Seedling-raising from Various Families in Its Third Generation Seed Orchard and the Trial in Its Forestation

作者：刘光金[1] 白灵海[1] 孙文胜[1] 蒙彩兰[1]

第一作者：刘光金

机构：[1]中国林业科学研究院热带林业实验中心

年份：2010

期号：19

起止页码：10364-10366

中文期刊名：安徽农业科学

外文期刊名：Journal of Anhui Agricultural Sciences

收录：北大核心:【北大核心2008】；

基金："十一五"广西林业科技项目[桂林科字(2009)第17号]

语种：中文

中文关键词：湿地松;第3代种子园;家系;引种

外文关键词：Pinus elliottii Engelm; Family line of the 3rd generation; Family selection; Introduction

分类号：S791.246

摘要：[目的]研究引种美国湿地松第3代种子园10个优良家系苗期遗传变异,为广西速生丰产高产脂湿地松选育提供参考。[方法]以马尾松为对照,采用家系小区随机区组的试验方法,研究引种湿地松苗高、地径主要生长性状遗传变异。[结果]引种美国湿地松第3代种子园10个优良家系造林定植成活率高,平均保存率96%,表明美国湿地松适应性强,适宜于广西凭祥立地环境。苗期湿地松高生长不显著,表型最好的家系MWV-447,高于对照Masson1和Masson2;MWV-443、MWV-444、MWV-446、MWV-448、MWV-451、MWV-452高于对照Masson2,但低于对照Masson1;MWV-445、MWV-449、MWV-450最差,低于对照Masson1和Masson2。参试10个优良家系地径生长显著优于对照Masson1和Masson2,MWV-449最大,为28.08mm,超出对照Masson142.3%,超出对照Masson265.9%;MWV-444最小,为24.96mm,超出对照Masson126.5%,超出对照Masson247.4%。[结论]经方差分析与t检验,美国湿地松优良家系苗期性状差异显著,经过林木改良与选育可筛选出适宜家系推广利用。
[Objective] The reference for the high-yielding breeding of Pinus elliottii Engelm was provided through the research on the hereditary and variation of its 10 elite families,introduced from USA.[Method] The Masson pine being taken as the CK,the hereditary and variation of main character such as the height of plant and the diameter of basal stem of the introduced plant were studied with the method of randomized block design based on the one family as one block.[Results] The results showed that the average survival rate of these families was 96%,showing the plant was with strong adaptability and suitable for growth in the Pingxiang of Guangxi province.In the height of the plant,it was not significant and the line：MWV-447 was better than the CK Masson 1 and Masson 2;the line：MWV-443,MWV-444,MWV-446,MWV-448,MWV-451 and MWV-452 were better than the CK Masson 2 and worse than the CK Masson 1;the line：MWV-445,MWV-449 and MWV-450 was worst in all of lines,which was worse than both of the CK Masson 1 and Masson 2.The growth of the diameter of basal stem of 10 lines was significantly better than that of the CK Masson 1 and Masson 2,among which the line：MWV-449 was best one（28.08 mm）with 42.3% more than that of Masson 1 and 65.9% more than that of Masson 2;and the line ：MWV-444 was worst one（24.96 mm）with 26.5% more than that of Masson 1 and 47.4% more than that of Masson 2.[Conclusion] The analysis of variance and t test indicated that there was significant difference in the character of Pinus elliottii Engelm lines and the elite line could be extended after the improvement and selection.