华北落叶松种子园幼龄母树雌花量的调查分析  

Opinion survey on the number of female flowers of the young seed trees in seed orchards of Larix principics-rupprchitii Mayr.

作　　者：周志庭 张鸿景 袁德水[1] 李增利[1] 王艳军[1] 

机构地区：[1]木兰围场国有林场管理局,河北围场068450 [2]河北省林业科学研究院,河北石家庄050061

出　　处：《河北林果研究》2010年第3期232-234,共3页Hebei Journal of Forestry and Orchard Research

摘　　要：为了研究种子园母枝结实与地理环境的关系,对种子园10-11 a生的母树的雌花量进行调查。结果表明：在结实初期,不同无性系母树雌花量差异显著;同一无性系不同母树在不同立地条件下的雌花量差异显著或极显著,由多到少排序为阳坡、沟堂、阴坡;但是在结实大年与结实小年之间比较无性系雌花量排序不尽一致。The relationship between fruit capacity of mother branch in seed orchards and geographical environment was studied by investigating and analyzing the number of female flowers of the 10～11-years old seed trees in seed orchards.The results indicated that the numbers of female flowers of the different clonal mother trees were significantly differenct in the early fruit-bearing stage;the numbers of female flowers of the different mother trees of the same clone were significantly differenct or very significant in different site conditions,the order was as following：the sunlit sidethe bottomthe sunless side;but the order of the numbers of female flowers of the clones were different between maximum fruit-bearing and minimum fruit-bearing.

关 键 词：华北落叶松 种子园 雌花量 立地条件 

分 类 号：S722.8[农业科学—林木遗传育种]