新疆农业科学2017，Vol.54Issue(10)：1785-1795,11.DOI:10.6048/j.issn.1001-4330.2017.10.003
自然越冬过程中扁桃枝条生理特性变化与抗寒性评价
Changes of Physiological Indexes and Comprehensive Evaluation of Cold Resistance of Almond during Natural Overwintering
摘要
Abstract
[Objective] In this paper,the physiological characteristics of 6 almond varieties during their natural wintering will be evaluated,and the cold resistance of different almond branches will be comprehensively evaluated,which might provide a theoretical basis for introduction,cultivation and promotion of almond.[Method] The membrane permeability,protective enzyme activity and osmotic adjustment substance content of each almond were determined during the overwintering process.The changes and correlations of physiological indexes during winter were analyzed,and the differences among different cultivars were compared.[Result] In the process of natural overwintering,the temperature of natural winter was negatively correlated with electrolyte permeability,MDA content,SOD activity,POD activity,soluble protein content,soluble sugar content and proline content,and all increased first and then decreased.The change of temperature had a great effect on the change of electrolyte permeabihty,MDA content,SOD activity,soluble protein content and soluble sugar content,but had little effect on POD activity and proline content.And The varieties with strong cold resistance were more abundant than those with weak cold resistance,among which the changes of physiological indexes were more obvious during the overwintering period.[Conclusion] The results showed that through the physiological indexes of almond branches during overwintering that were determined,the conductivity,SOD,soluble sugar and protein could be used as indexes to evaluate the cold resistance,and the relationship between the cold resistance of the six almond varieties was evaluated by combining the membership function.The cold resistance of 6 almond cultivars was in turn:Nonpareil ＞ Peach Almond ＞ Aifeng ＞ Bitter Almond ＞ Wanfeng ＞ Xiaoruanke.关键词
扁桃/自然越冬/抗寒性/生理指标/综合评价Key words
almond/natural overwintering/cold resistance/physiological index/comprehensive evaluation分类
农业科技引用本文复制引用
欧欢,王绪春,王振磊,徐崇志,王新建,林敏娟..自然越冬过程中扁桃枝条生理特性变化与抗寒性评价[J].新疆农业科学,2017,54(10):1785-1795,11.基金项目
南疆特色林果科技成果转化示范基地建设(TDZX201614) （TDZX201614）
巴旦杏高效生产关键技术集成与规模化示范(子课题5:2013BAD14B02)Construction of demonstration base for scientific and technological achievements transformation of featured trees in southern Xinjiang(TDZX201614) and Almond efficient production key technology integration and large-scale demonstration (Sub-project 5:2013BAD14B02) （子课题5:2013BAD14B02）
