Enhancement of seed germination in Macaranga peltata for use in tropical forest restoration

作     者：Cassie R.Rodrigues Bernard F.Rodrigues 

作者机构：Department of Botany Goa University Goa 403206 India 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2014年第25卷第4期

页      面：897-901页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 

基　　金：the Ministry of Minority Affairs-UGC New Delhi India for providing financial assistance(MANF) 

主　　题：dormancy gibberellic acid (GA) mechanical scarification restoration seed coat 

摘      要：We used pre-sowing treatments v/z., soaking seeds in concen- trated sulphudc acid （CSA）, gibberellic acid （GA）, combined treatment of CSA ＋ GA and mechanical scarification to overcome seed dormancy and enhance synchronous germination of Macaranga peltata seeds. We analysed percent seed germination data by logistic regression and con- finned that except in GA treatment, time and acid concentration together were crucial for enhancing germination. The combination treatment of CSA and GA resulted in higher percent germination （up to 74%） than either treatment used separately, but produced defective seedlings （26%）. Mechanical scarification of seed coat had the greatest impact in enhanc- ing germination （78%） and reducing imbibition time （6 days） against the control （0%）. Germination studies and SEM analysis confirmed that seed germination in M. peltata was inhibited by seed coat dormancy.