Effects of various treatments on breaking seed dormancy of Astragalus siliquosus

被引:22
作者
Eisvand, H. R. [1 ]
Arefi, H. M. [1 ]
Tavakol-Afshari, R. [1 ]
机构
[1] Univ Tehran, Dept Agron & Plant Breeding, Tehran, Iran
关键词
D O I
10.15258/sst.2006.34.3.22
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Seeds of Astragalus siliquosus Boiss. possess seed coat-imposed dormancy hampering complete, rapid and uniform germination. Several treatments including acid and mechanical scarification and stratification were applied to increase seed coat permeability. Results indicated that about 95% of seed dormancy is due to seed coat impermeability to water and the rest are related to physiological factors. Mechanical scarification by sandpaper was the most appropriate treatment to permeable the seed coat to water with no adverse effects on embryo. Using this treatment along with cold stratification removed more than 98% of seed dormancy. Also stratification of the imbibed seeds increased speed of germination significantly but had no considerable effects on fresh weight and dry weight of seedlings. Sulfuric acid, however, increased germination but had maximum percentage of dead seeds. Other treatments had not significant differences with control.
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收藏
页码:747 / 752
页数:6
相关论文
共 12 条
[1]  
ABDULBAK.AA, 1973, CROP SCI, V13, P630, DOI 10.2135/cropsci1973.0011183X001300060013x
[2]  
Agrawal R.L., 2004, SEED TECHNOLOGY
[3]  
Baskin CC, 1998, SEEDS ECOLOGY BIOGEO
[4]  
EGLEY GH, 1989, NATO ADV SCI I A-LIF, V187, P207
[5]  
ELLIS RH, 1985, COMPENDIUM SPECIFIC, V3
[6]  
GHAHREMAN A, 1999, FLORA IRAN, V20
[7]  
ISTA, 1985, SEED SCI TECHNOL, V13, P299
[8]  
Kaye T.N., 1997, Conservation and management of native plants and fungi
[9]  
PEYMANI B, 1985, REHABILITATION DENUD
[10]   REVIEW OF DATA-ANALYSIS METHODS FOR SEED-GERMINATION [J].
SCOTT, SJ ;
JONES, RA ;
WILLIAMS, WA .
CROP SCIENCE, 1984, 24 (06) :1192-1199