文献类型：期刊文献

中文题名：无瓣海桑对乡土红树植物的化感作用

英文题名：Allelopathic Effects of Sonneratia apetala Aqueous Extracts on Growth Performance of Some Indigenous Mangroves

作者：李玫[1] 廖宝文[1] 郑松发[1] 陈玉军[1]

第一作者：李玫

机构：[1]中国林业科学研究院热带林业研究所

年份：2004

卷号：17

期号：5

起止页码：641-645

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(30070144);广东省自然科学基金(021582)的部分研究内容

语种：中文

中文关键词：无瓣海桑;化感作用;乡土红树植物

外文关键词：Sonneratia apetala;allelopathic;native mangroves

分类号：S723.7

摘要：以外来种无瓣海桑为供体,通过室内栽培实验探讨了无瓣海桑各器官水浸液的不同浓度(即0 1、0 2、0 3、0 4、0 5g·mL-1)对我国4个乡土红树植物的化感作用。结果表明:无瓣海桑对各乡土红树植物均存在化感作用,对胚轴萌发的影响大于对幼苗生长的影响;除最低浓度外,不同浓度的各器官水浸液均能明显抑制各乡土红树植物的萌发,且随着浓度增大抑制作用增强;所有水浸液均表现出高浓度下抑制幼苗生长,随着浓度的降低抑制作用减弱,甚至转为促进的规律;各器官的水浸液对各乡土红树植物的萌发和幼苗生长的抑制作用为:果>根>凋落叶;高浓度时,无瓣海桑的各器官水浸液对不同受体红树植物的幼苗生长抑制强度不同。
Allelopathic effects of Sonneratia apetala on the germination and seedling growth of 4 native mangrove species were investigated in a greenhouse cultivation with five concentrations (i.e. 0.1,0.2,0.3,0.4,0.5 g·mL^(-1)) of aqueous extracts from different organs of S.apetala. Results showed that (1) S.apetala had greater allelopathic effects on germination than on seedling growth of 4 test native mangroves;(2) all concentrations except the lowest significantly inhibited the germination of native mangroves, and the inhibitory effects increased with the increasing of concentration;(3) at high concentrations of aqueous extracts,seedling growth was significantly inhibited, and the inhibitory effects decreased with the decreasing of concentration, while seedling growth was stimulated at low concentrations;(4) the order of inhibitory effects of different organs of S.apetala was: fruit>root>deciduous leaves,while the inhibitory effects of S.apetala varied with differcnt receptor species.