降香黄檀播种及幼苗生长规律研究
Sowing Technique and Seedling Growth Law of Dalbergia odorifera
郑国增1
作者信息
- 1. 莆田市绿源名贵植物开发有限公司，福建仙游351261
- 折叠
摘要
采用室内和田间试验，研究不同植物生长调节剂（ IBA、GA3、6-BA，以清水为对照）、种子不同处理方式（处理A：将种子用清水浸泡48 h后，直接播于苗床中；处理B：在处理A的基础上覆盖一层塑料薄膜；处理C：将种子进行层积催芽露白后，直接播种于苗床中）对降香黄檀种子萌发、出苗及苗木生长的影响。室内种子萌发试验结果表明，植物生长调节剂处理可显著提高降香黄檀种子的发芽率和发芽势，大小顺序均表现为IBA＞GA3＞6-BA＞CK。大田播种育苗试验表明，经催芽后播种（处理C）和苗床覆盖薄膜（处理B）的出苗率均达到70％以上，显著高于露地直接播种（处理A）；降香黄檀1年生幼苗的高生长和地径生长均呈“S”形曲线。
Abstract
The present experiment has been conducted to study the effects of different treatment on seed germination ( Treatment A:direct sowing in bed after soaked with water in 48 h;Treatment B:covered a layer of plastic film after treatment A;Treatment C:di-rect sowing in sand bed of seed stratification ) and seedling growth of Dalbergia odorifera,the results showed that seed germination rate and germination energy of D.odorifera treated with plant growth regulators were greatly improved ,in the order of IBA>GA3 >6-BA>CK;On field experiment ,the rate of emergence was over 70% under two treatment of after seed germination or film covering seedbed,were significantly higher than those in the direct seeding.The annual growth rhythm of seedling was shaped of “S” curve, and had obvious phase.
关键词
降香黄檀/植物生长调节剂/种子萌发/幼苗生长Key words
Dalbergia odorifera/plant growth regulator/seed germination/seedling growth引用本文复制引用
基金项目
福建省科技厅重大研究项目(2009 N3005)
出版年
2015
国家科技期刊平台
NSTL
维普
万方数据