崇阳杉木无性系种子园花粉散发与空间分布特性研究  

Studies on the Pollen spreading and Its Space Distribution in Seed Orchard of Cunninghamia Lenceolate (Lamb.) Hook Located in Chongyang

作　　者：张卓文[1] 唐蜻[1] 黄子锋[1] 黄正芳[1] 郑志金[1] 

机构地区：[1]华中农业大学林学系,武汉430070

出　　处：《种子》2001年第5期15-17,共3页Seed

基　　金：华中农业大学科技创新基金 (STIF)项目

摘　　要：本文以湖北崇阳杉木无性系种子实地调查和定点观测资料为依据 ,对杉木花粉的散发和花粉空间分布进行了研究。结果表明 ,杉木花粉的散发出现季节及昼夜节律。杉木花粉的垂直空间分布为集群分布 ,种子园内花粉呈均匀分布型 ,园外则随距离种子园的远近呈扩散分布型 ,种子园的隔离距离为 6 0 0～ 10 0 0米。并据此制订了杉木种子园人工授粉操作规范。With the data from the seed orchard of Cunninghamia lenceolata (Lamb.) Hook located in Chongyan, we have studied the pollen spreading and its space distribution. The results show that the pollen spreading has its own special season and day night rhythm. The pollen distribution type in vertical space is a cluster one. The pollen distribution in horizontal in the seed orchard is an equally distribution type, and outside the seed orchard a diffusible one. The wind speed is the most important factor for pollen spreading. The relationship between pollen number and distance to seed orchard shows a linear. Based on the characteristics of pollen spreading, the regulations of pollination by man during pollen spreading season have been made.

关 键 词：杉木 种子园 花粉散发 花粉空间分布 辅助授粉 无性系 

分 类 号：S791.27[农业科学—林木遗传育种] S722.83[农业科学—林学]