干旱区生态环境知识资源中心(Arid): 冬季低温对沙漠植物约书亚树幼苗生理生化指标的影响

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	冬季低温对沙漠植物约书亚树幼苗生理生化指标的影响
其他题名	Effect of Winter Low Temperature on Physiological and Biochemical Indexes of Desert Plants Yucca brevifolia Seedlings
	段亮亮; 满秀玲; 刘力宁; 曲弨琪
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2011
卷号	25 期号:6 页码:242-245
中文摘要	利用2年生约书亚树(Yuccabrevifolia)幼苗进行低温越冬试验，对冻害程度及其生理生化指标进行测定分析。结果表明：随着冻害程度的加重，质膜透性、游离脯氨酸及可溶性糖含量逐渐升高，叶绿素含量SPAD值逐渐降低，其中覆土容器苗的冻害程度最为严重，其质膜透性、游离脯氨酸及可溶性糖含量分别达到了74.8698%,3.5583mg/g和174.8864mg/g,SPAD值仅为28.5667，与对照相比差异均达到极显著水平；林下约书亚树幼苗的MDA含量最高，达到了5.5115mmol/g，且与其他处理间存在极显著差异。结合越冬后约书亚树幼苗的冻害指数及生理生化指标，利用主成分分析法综合评价3种越冬方式下约书亚树幼苗的表现为地窖内防寒越冬效果最好，室外覆土容器苗和林下栽植幼苗冻伤较严重。
英文摘要	The 2-year-old Yucca brevifolia seedlings were processed by using different ways of low temperature overwintering test, their degree of freezing injury and physiological and biochemical indexes were determined. The results show that as the severity of freeze injury, the content of the membrane permeability and the free proline and the soluble sugar gradually increased, the content of chlorophyll gradually decreased. The severity of freeze injury of soil covering container seedlings is the most serious, the content of membrane permeability and the free proline and the soluble sugar is respectively 74.869 8%,3.558 3 mg/g and 174.886 4 mg/g,the value of SPAD is 28.566 7, difference compared with the control reached a significant level; understory seedlings has the highest content of MDA, and reached 5.511 5 mmol/g, difference compared with other process reached a significant level. Combined freeze injury index and physiological and biochemical indicators of Yucca brevifolia seedlings after the overwintering, using principal component analysis, comprehensively evaluate the perform ancing of Yucca brevifolia seedlings which overwinter in three ways, effect of cold resistance and overwintering is best in cellar, understory seedlings and soil covering container seedlings are more serious freezing.
中文关键词	约书亚树幼苗 ; 越冬方式 ; 质膜透性 ; 可溶性糖 ; 主成分分析
英文关键词	Yucca brevifolia seedling overwintering mode membrane permeability soluble sugar principal component analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4389946
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227095
作者单位	东北林业大学林学院, 哈尔滨, 黑龙江 150040, 中国
推荐引用方式 GB/T 7714	段亮亮,满秀玲,刘力宁,等. 冬季低温对沙漠植物约书亚树幼苗生理生化指标的影响[J],2011,25(6):242-245.
APA	段亮亮,满秀玲,刘力宁,&曲弨琪.(2011).冬季低温对沙漠植物约书亚树幼苗生理生化指标的影响.水土保持学报,25(6),242-245.
MLA	段亮亮,et al."冬季低温对沙漠植物约书亚树幼苗生理生化指标的影响".水土保持学报 25.6(2011):242-245.