Alimu·AMUTI,WANG Yu,ZHANG Rui,et al.Comparative Study on Tissue Structure and Cold Resistance of Eight Almond Branches[J].Northern Horticulture,2025,(7):40-48.[doi:10.11937/bfyy.20243835]
八个扁桃枝条的组织结构及抗寒性比较
- Title:
- Comparative Study on Tissue Structure and Cold Resistance of Eight Almond Branches
- 文章编号:
- 1001-0009(2025)07-0040-09
- Keywords:
- Amygdalus communis L.; cold tolerance; semi-lethal temperature; principal component analysis
- 分类号:
- S 662.9
- 文献标志码:
- A
- 摘要:
- 以“纸皮”“美森”“浓帕尔”“晚丰18”“小双仁”“多果02”“双果12”“阿曼尼莎” 8个扁桃品种的一年生深度休眠期枝条为试材，采用-28、-23、-18、-13、-8 ℃的低温胁迫处理方法，测定相对电导率（REC）、过氧化氢酶（CAT）、过氧化物酶（POD）、超氧化物歧化酶（SOD）〖JP+2〗活性、可溶性糖、游离脯氨酸（Pro）、丙二醛（MDA）和可溶性蛋白质含量以及枝条组织结构，研究了低温处理对扁桃一年生枝抗寒性的影响，以期为选择在阿拉尔垦区适栽抗寒能力强的优质扁桃品种提供参考依据。结果表明：供试品种的半致死温度在-22.53～-14.34 ℃，在不同低温处理下，8个扁桃枝条的保护酶活性总体表现为先升后降趋势，可溶性糖、游离脯氨酸、丙二醛含量随着温度降低表现为先升后降趋势，均在处理温度为-23 ℃时含量出现最高值；通过主成分分析进行综合评价，8个品种的抗寒性强弱依次为“双果12”>“浓帕尔”>“小双仁”>“美森”>“多果02”>“纸皮”>“阿曼尼莎”>“晚丰18”。
- Abstract:
- The one-year-old deep dormant Amygdalus communis L.branches of‘Zhi Pi’‘Mission’‘Nonparein’‘Wan Feng 18’‘Xiao Shuang Ren’‘Duo Guo 02’‘Shuang Guo 12’ and ‘Amanisha’ were used as test materials,low temperature stress treatments at -28，-23，-18，-13，-8 ℃ were used,relative electric conductivity (REC)，catalase (CAT)，peroxidase (POD)，superoxide dismutase (SOD) activity，soluble sugar，free proline (Pro)，malondialdehyde (MDA)，soluble protein content and branch structure were measured to study the effect of low temperature treatment on cold resistance of one-year-old branches of amygdalus communis,in order to provide reference for the selection of high-quality Amygdalus communis L. varieties with strong cold resistance in Alar reclamation area.The results showed that semi-lethal temperature of the tested varieties was between -22.53 ℃ and -14.34 ℃,the under low temperature stress，the protective enzyme activities of the eight Amygdalus communis L. branches generally increased first and then decreased.The contents of soluble sugar，free proline and malondialdehyde increased first and then decreased with the decrease of temperature，and the contents reached the highest value when the treatment temperature was -23 ℃.The comprehensive evaluation indicated that the strength of cold resistance in 8 varieties was in the following order,‘Shuang Guo 12’>‘Nonparein’>‘Xiao Shuang Ren’>‘Mission’>‘Duo Guo 02’>‘Zhi Pi’>‘Amanisha’>‘Wan Feng 18’.
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备注/Memo
第一作者简介：阿力木·阿木提（1991-），男，硕士，讲师，现主要从事果树栽培与生理等研究工作。E-mail：1505477578@qq.com.责任作者：张锐（1979-），女，博士，教授，博士生导师，现主要从事果树高产栽培机理及分子育种等研究工作。E-mail：843037930@qq.com.基金项目：塔里木大学校长基金资助项目（TDZKSS202159）；南疆园艺研究中心科研条件建设资助项目（TDZKKY202204）。收稿日期：2024-10-08