对1997年营建在福建省邵武卫闽国有林场13年生的马尾松种质资源库进行调查分析,评价马尾松种质资源生长、雌雄花 量性状。结果表明:不同种质材料间生长差异较大; 收集的第2代种质其树高、胸径、自然整枝能力显著优于第1代种质,冠幅 、分枝角度显著小于第1代种质; 材用种质的生长及自然整枝能力明显优于高产脂种质,冠幅、分枝角度明显小于高产脂种质 。种源子代开花最多,其次为优树子代; 按纸浆材及建筑材定向培育为选育目标的子代生长量和生物量较大,但开花量最低。 经过评价,537份马尾松种质资源被划分为综合表现优秀、中等、较差、差共4种类型,其中综合表现优异的种质计84份。
Abstract
Investigation and analysis on Pinus massoniana Lamb. germplasm bank which was carried on Weimin Forest Farm of Fujian province, and the results showed that there were significant variation on growth among germplasms. There were much more improved on the traits such as tree heights, diameter of breast height(DBH)and natural pruning ability for the 2nd generation germplasm to compare with those from the 1st generation. But it was opposite in crown and branching angle between the two generations germplasm. Compared with germplasm selected for resin productivity, the germplasm selected for wood production had more vigorous growth and ideal natural pruning ability, but narrower crown and smaller branching angle. The fertility(i.e. male or female flowers)for the progenies of provenance was the highest, for the progenies of plus tree was mediumand the progenies from germplasm selected for pulping and solid wood production had lower flowering. Depend upon the growth and fertility evaluation, the 537 copies of masson pine germplasms could be classified into four groups, marked with excellent, medium, relatively poor and poor marks, respectively, in which there were 84 copies of germplasm in excellent group.
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基金
收稿日期:2011-01-26 修回日期:2011-09-08 基金项目:福建省林业科学研究项目(闽林科〔2009〕8号); 福建省林木种苗科技攻关三期项目 第一作者:苏顺德,工程师。E-mail: ssdforest@163.com。引文格式:苏顺德. 马尾松种质资源生长及开花特性评价[J]. 南京林业大学学报:自然科学版,2012,36(4):62-66.
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