干旱区生态环境知识资源中心(Arid): 西北干旱半干旱地区刺槐种子超干贮存生理生化特性研究

Arid

	西北干旱半干旱地区刺槐种子超干贮存生理生化特性研究
其他题名	Effects of Ultra-drying Treatment on Viability and Physiological Characteristic of Robinia pseudoacacia Seed from Arid and Semiarid Areas of Northwest China
	侯龙鱼; 李庆梅; 段新芳; 刘广全; 马风云
来源期刊	种子
ISSN	1001-4705
出版年	2008
卷号	27 期号:12 页码:55-59
中文摘要	采用硅胶室温干燥法,延安种源刺槐种子含水量由6.9%降至5.9%、4.8%、4.2%和3.6%,吴起种源刺槐种子含水量由7.4%降至6.3%、5.1%、4.3%和3.8%,对不同含水量刺槐种子发芽率、相对电导率、脱氢酶活性和alpha-淀粉酶活性等指标进行测定,并对种子老化(50℃,30 d)后的发芽率和生理生化指标进行测定。结果表明:延安种源刺槐种子含水量不低于4.8%时,种子发芽率、脱氢酶活性、alpha-淀粉酶活性保持在相对较高的水平;吴起种源刺槐含水量不低于4.3%时,种子发芽率高于自然干燥种子,电导率低于自然干燥种子,脱氢酶活性和alpha-淀粉酶活性高于自然干燥种子;延安种源刺槐种子含水量不低于4.8%时,种子抗老化能力较自然干燥含水量种子强;吴起种源刺槐种子含水量不低于4.3%时,种子抗老化能力强与自然干燥含水量种子;种源地和种质对种子耐超干能力有较显著的影响。
英文摘要	With the method of drying by silica gel,Robinia pseudoacacia seed of Yan’an City and Wuqi City were dried from 6.9% to 5.9%,4.8%,4.2% and 3.6%,and from 7.4% to 6.3%,5.1%,4.3% and 3.8% moisture content,respectively,the germination percentage,relative conductivity,activities of dehydrogenase and alpha-amylase were measured.After ultra-drying the seed was accelerated aged(50℃,30d),some physiological indexes was tested.The results showed that seed germination percentage of Robinia pseudoacacia of Yan’an City has a high level with its moisture content no less than 4.8%;Germination percentage of Wuqi City Robinia pseudoacacia ultra-dried seed with moisture content no less than 4.3% was higher than that of seed with 7.4% moisture content,while its relative conductivity was lower than seed with 7.4% moisture content and activities of dehydrogenase and alpha-amylase were higher than seed with 7.4% moisture content;Under aging condition,the germination percentage and physiological characteristic of Robinia pseudoacacia seed with ultra-drying treatment decreased fewer than seed without ultra-drying treatment.Seed quality and source have significant effects on seed ability of ultra-drying.
中文关键词	刺槐种子 ; 超干保存 ; 相对电导率 ; 脱氢酶活性 ; alpha-淀粉酶活性
英文关键词	Robinia pseudoacacia seed ultra-drying storage relative conductivity dehydrogenase activity alpha-amylase activity
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Forestry
WOS研究方向	Forestry
CSCD记录号	CSCD:3460025
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223226
作者单位	侯龙鱼, 山东农业大学林学院, 泰安, 山江 271018.; 马风云, 山东农业大学林学院, 泰安, 山江 271018.; 李庆梅, 中国林业科学研究院新技术研究所, 北京 100091, 中国.; 段新芳, 中国林业科学研究院林业研究所, 北京 100091, 中国.; 刘广全, 西北农林科技大学, 杨陵, 陕西 712100, 中国.
推荐引用方式 GB/T 7714	侯龙鱼,李庆梅,段新芳,等. 西北干旱半干旱地区刺槐种子超干贮存生理生化特性研究[J]. 西北农林科技大学,2008,27(12):55-59.
APA	侯龙鱼,李庆梅,段新芳,刘广全,&马风云.(2008).西北干旱半干旱地区刺槐种子超干贮存生理生化特性研究.种子,27(12),55-59.
MLA	侯龙鱼,et al."西北干旱半干旱地区刺槐种子超干贮存生理生化特性研究".种子 27.12(2008):55-59.