沙冷杉结实特性的观测  

The measurement of reproduction characteristics of Abies holophylla

作　　者：刘秋瑾 耿淑彦 李永生[3] 

机构地区：[1]吉林省蛟河林业试验区管理局,吉林吉林132517 [2]上营森林经营局,吉林吉林132607 [3]长春大学生物科学技术学院,吉林长春130012

出　　处：《吉林林业科技》2011年第6期5-6,35,共3页Journal of Jilin Forestry Science and Technology

摘　　要：以沙冷杉为材料,对其结实特性进行观测,结果表明:在城市人工栽培条件下,初次结实年龄为40～45 a,与野生植株基本相同,初次结实株率为31.3%;充足的光照可使结实植株和球果数量增加,温度对其无明显影响。球果着生于2 a或3 a生枝条基部,以2 a生枝条基部居多;多集中分布在树冠上部的枝条上。果鳞开裂至有种子与果鳞脱落为5 d左右,至2周左右种子与果鳞完全脱落;就群体而言,球果成熟期与种子散落期无明显时间区分。The reproduction characteristics of Abies holophylla were measured.The initial reproduction occurred between 40~45 a under cultivated condition in urban environment.Similar to the wild plant,the initial seed rate was 31.3%.The number of plants reproduced and cones increased with the light intensity,but unrelated with temperature.The cones grew at the base of branches 2 or 3 year-old,more cones at 2-year-old branches which at the upper of canopy.It spent about 5 d from the cone-scale splitting to separating,and 2 weeks to seeds totally separated from cone-scale.The maturity period and seed dropping period were similar among populations.

关 键 词：沙冷杉:结实年龄 球果着生部位 球果成熟期 

分 类 号：S511[农业科学—作物学]