Effect of priming on the germination of Peltophorum dubium seeds under water stress

作     者：张万里 李雷鸿 祖元刚 ZHANG Wan-li;LI Le-ihong;ZU Yuan-gang;Sonia Perez

作者机构：华东师范大学生命科学学院上海市200062 东北林业大学森林植物生态学开放研究实验室哈尔滨市150040 

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

年 卷 期：2004年第15卷第4期

页      面：287-290页

核心收录：

学科分类：0710[理学-生物学] 090701[农学-林木遗传育种] 0907[农学-林学] 07[理学] 09[农学] 071007[理学-遗传学] 

基　　金：This work is Supported by CAPES Brazil. Open research laboratory of forest plant ecology NEFU. The State's tenth five-year "211 Project"-supported key academic discipline program of ECNU 

主　　题：Priming Osmotic potential Germination Seeds, Peltophorum dubium 

摘      要：Peltophorum dubium seeds provided by Anhembi, SP were scarified in 98% H2SO4 for 15 min to overcome mechani-cal dormancy. Seeds were primed in solutions of 0.2% Captan at 10 C and 27C, PEG 6000 -1.0 MPa at 10C and 27C, 0.5 mol KNO3, 0.75 Mol KNO3, 1.0 Mol KNO3. Eight treatments including the primed seeds and nonprimed seeds, five replicates with 100 seeds for each treatment, were set to 15-cm-Petri dish with double filter paper moistened with testing solution PEG in refrigerator at 27C. For the experiments of all the groups, osmotic potential were 0.0, -0.2, -0.4, -0.6, -0.8, -1.0, -1.2, and -1.4 MPa. P. dubium seeds were also set to water stress experiment in rolled paper with PEG solutions from 0.0 to -1.0 M Pa. Germination percentage decreased with the increase of PEG concentration. Control group had a better germination percentage than other groups. Germination hardly occurred in PEG -1.4 MPa.