[1]郭改改,魏钰,封斌,等.我国几个不同地域长梗扁桃苗木的抗寒性研究[J].西北林学院学报,2013,28(04):11-15.[doi:10.3969/j.issn.1001-7461.2013.04.03]
 GUO Gai-gai,WEI Yu,FENG Bin,et al.Cold-resistance of Amygdalus pedunculata from Different Provenances in China[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(04):11-15.[doi:10.3969/j.issn.1001-7461.2013.04.03]
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我国几个不同地域长梗扁桃苗木的抗寒性研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第28卷
期数:
2013年04期
页码:
11-15
栏目:
出版日期:
2013-07-30

文章信息/Info

Title:
Cold-resistance of Amygdalus pedunculata from Different Provenances in China
文章编号:
1001-7461(2013)04-0011-05
作者:
郭改改魏钰封斌麻保林张应龙郭春会
(1.西北农林科技大学 园艺学院,陕西 杨陵 712100;2.陕西省治沙研究所,陕西 榆林 719000;3.神木县生态协会,陕西 神木 719300)
Author(s):
GUO Gai-gaiWEI Yu FENG BinMA Bao-linZHANG Ying-longGUO Chun-hui
(1.College of Horticulture,Northwest A&F University,Yangling,Shaanxi 712100,China; 2.Shaanxi Institute of Sand Control,Yulin,Shaanxi 719000,China; 3.Shenmu Ecological Association,Shenmu,Shaanxi 719300,China)
关键词:
 长梗扁桃' target="_blank" rel="external"> FONT-FAMILY: 宋体">长梗扁桃抗寒性相对电导率保护酶系统脯氨酸丙二醛恢复萌芽率
Keywords:
Amygdalus pedunculata cold-resistance relative leakage of electrolyte protective system proline MDA recovery rate of germination
分类号:
S662.9
DOI:
10.3969/j.issn.1001-7461.2013.04.03
文献标志码:
A
摘要:
 分别取自河北、固阳、神木、榆林、乌审旗5地生长状况基本相同的长梗扁桃1年生休眠枝条为材料,通过人工冷冻模拟外界环境,对长梗扁桃枝条进行-15℃、-19℃、-23℃、-27℃、-31℃、-35℃、-39℃等7个温度梯度处理。测得这些休眠枝条的相对电导率、SODPOD活性、游离脯氨酸含量及MDA含量,并对低温处理过的部分枝条进行恢复生长来测定其萌芽率,最后对测定结果进行分析和比较。结果表明:5个地区的长梗扁桃的相对电导率、SODPOD活性、游离脯氨酸含量及MDA含量均随着处理温度的降低而呈现上升趋势,并且抗寒性强的地区的长梗扁桃SODPOD活性和游离脯氨酸含量相对较高,MDA含量和电导率较低,恢复生长枝条的萌芽率均比同温度处理下的抗寒性弱的高。抗寒性强弱顺序为:河北(H>乌审旗(W>固阳(G>神木(S>榆林(Y),河北和乌审旗的长梗扁桃抗寒性较强,可以对其进行广泛的品种选育和推广。
Abstract:
 The annual dormant Amygdalus pedunculata branches were collected from five different provenances (Hebei,Guyang,Shenmu,Yulin,and Wushenqi) in China to examine their cold resistance.The branches were treated under 7 artificial simulated low temperatures: -15,-19,-23,-27,-31,-35,and -39.Relative parameters of the branches subject to cold treatment were measured,including the relative leakage of electrolytes,super oxide dismutase (SOD) activity,peroxidase (POD) activity,the contents of proline and malondialdehyde (MDA).The recovery rates of germination of the treated branches were examined and compared.The values of the parameters all increased with the decrease of temperature.The species with excellent cold resistance had higher contents of proline,higher activity of SOD and POD,but lower MDA and relative leakage of electrolytes.After the recovery from low temperature,the species with excellent cold resistance had a significantly higher germinating rate than the other species.The sequence of cold resistance was in the order of Hebei(H)>Wushenqi(W)>Guyang(G)>Shenmu(S) >Yulin(Y).Both Hebei and Wushenqi showed excellent cold resistance,and can be widely introduced and extended.

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备注/Memo

备注/Memo:
收稿日期:2012-11-08 修回日期:2012-12-02
基金项目:国家林业局林业公益性行业科研专项(201104074);西北农林科技大学唐仲英育种专项。
作者简介:郭改改,女,硕士研究生,研究方向:果树生理。E-mail:273054548@qq.com
*通信作者:郭春会,女,教授,研究方向:果树栽培及生物技术。E-mail:906832715@qq.com
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