风箱果结实量及种子特性  

Seed Yield and Seed Characteristics of Physocarpus amurensis

作　　者：魏晓慧[1] 殷东生 沈海龙[1] 

机构地区：[1]东北林业大学,哈尔滨150040 [2]黑龙江省林业科学研究所

出　　处：《东北林业大学学报》2013年第10期46-49,共4页Journal of Northeast Forestry University

基　　金：黑龙江省科技攻关项目(GB02B103);国家“十一五”科技支撑课题(2006BAD03A04)

摘　　要：风箱果（P咖ocarpusamurensis）为濒危种。通过对风箱果种子结实量和种子特性进行测定，结果表明：风箱果果实出种量很低，含1～2粒种子的果实比例最大，平均为3．O粒种子，且不同采种母树间种子质量差异显著（P〈O．05）；风箱果种子含水量、千粒种子质量和生活力分别为9．86％、1．42g和94．44％；种子24h达到了吸水饱和状态，种子不存在种皮透水不良的问题；不同采种母树间种子的发芽率差异不显著（P〉O．05），平均发芽率较低（21．25％）且发芽缓慢；播种出苗率仅为6．22％。Physocarpus amurensis is one of endangered plants. The experiment was conducted to measure the seed yield and seed characteristics. The fruit yield is very low, the proportion of fruit with 1-2 grains is the largest and mean seed number per fruit is 3.0. Seed weight between different mother trees is significantly difference （P〈0.05）. Seed moisture content, 1 000-seed-weight and seed vitality are 9.86%, 1.42g and 94.44%, respectively. Seeds reaches the water saturation point in 24 hours without the seed non-existent the problem of poor water permeability. The seed germination rate among different the mother trees has no significant difference （P〉0.05）. The average germination rate is low （21.25%） with slower germination, and the seedling emergence rate is only 6.22%.

关 键 词：风箱果 种子 结实量 种子特性 

分 类 号：S718[农业科学—林学]