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

编号 zgly0000339189

文献类型 期刊论文

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

学科分类 220.99;林学其他学科

作者 ZHANGWan-li  LILe-ihong  ZUYuan-gangt  SoniaPerez 

作者单位 EastChinaNormalUniversity  Shanghai200062  P.R.China  NortheastForestryUniversity  Harbin150040.P.R.China  FederalUniversityofSaoCarlos  SaoCarlos13565-905  Brazil 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2004,15(4)

页码 287-290

年份 2004 

分类号 S792.99 

关键词 巴西盾柱木  水胁迫  引物处理  种子萌发  渗透势  解除休眠 

文摘内容 Peltophorum dubium seeds provided by Anhembi, SP were scarified in 98% H2SO4 for 15 rain to overcome mechanical dormancy. Seeds were primed in solutions of 0.2% Captan at 10℃ and 27℃, PEG 6000 -1.0 MPa at 10℃ and 27℃, 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 27℃. 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 MPa.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。