[1]刘锦,王挺,黎念林,等.电导法配合Logistic方程测定樱花抗寒性研究[J].江苏林业科技,2016,43(05):25-27.[doi:10.3969/j.issn.1001-7380.2016.05.005]
 LIU Jin,WANG Ting,LI Nian-lin,et al.Determination of lethal temperature of eight Cerasus species using Logistic Function[J].Journal of Jiangsu Forestry Science &Technology,2016,43(05):25-27.[doi:10.3969/j.issn.1001-7380.2016.05.005]
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电导法配合Logistic方程测定樱花抗寒性研究()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第43卷
期数:
2016年05期
页码:
25-27
栏目:
试验研究
出版日期:
2016-10-30

文章信息/Info

Title:
Determination of lethal temperature of eight Cerasus species using Logistic Function
文章编号:
1001-7380(2016)05-0025-03
作者:
刘锦王挺黎念林陈晓玲
杭州植物园,浙江 杭州 310013
Author(s):
LIU Jin WANG Ting LI Nian-lin CHEN Xiao-ling
Hangzhou Botanical Garden,Hangzhou 310013, China
关键词:
樱花 抗寒性 相对电导率 Logistic方程 半致死温度 杭州
Keywords:
Cerasus sp. Cold resistance Relative electrical conductivity Logistic Equation Median lethal temperature Hangzhou
分类号:
S685.99;Q945.78
DOI:
10.3969/j.issn.1001-7380.2016.05.005
文献标志码:
A
摘要:
为筛选出适合杭州地区生长且具特色的樱花种类,试验选取了浙闽樱、钟花樱、垂枝樱、高盆樱、大叶早樱、迎春樱、飞寒樱、毛樱8种杭州植物园引种驯化的樱花1年生枝条为材料,采用电导率法测定低温胁迫下其相对电导率(REC)的变化,并利用 Logistic方程进行拟合,计算出其半致死温度( LT 50)。结果表明:随着温度的降低,REC变化趋势呈“S”型上升,拟合出 LT 50分别为-8.06,-7.96,-6.97,-6.76,-4.85,-4.65,-3.60,-1.81 ℃,抗寒性由大到小依次为毛樱>浙闽樱>迎春樱>大叶早樱>飞寒樱>钟花樱>垂枝樱>高盆樱。结合实地栽培情况,除高盆樱外,其余樱花种类均能在杭州顺利越冬,特殊极寒天气需对垂枝樱做有效的防冻保护措施。综合考虑其观赏性,建议可加大垂枝樱、飞寒樱、毛樱在杭州地区的推广应用力度。
Abstract:
In order to determine the cold resistance of the eight selected Cerasus species (C. chneideriana, C. campanulata, C. subhirtella var pendula, C. cerasoides, C. subhirtella, C. discoidea, C. campanulata ‘Feihan’ and C. tomentosa.) suitable for growth around Hangzhou area, their median lethal temperatures ( LT 50) were gained, in combination with Logistic Equation, by measuring relative electrical conductivity (REC) of the 1-year-old shoots from these species introduced in the Hangzhou Botanical Garden. The results indicated that the change of REC exhibited an S-shape ascending curve. Their LT 50 were -8.06,-7.96,-6.97,-6.76,-4.85,-4.65,-3.60 ℃ and -1.81 ℃, respectively, suggesting their cold resistance order as C. tomentosaC. chneiderianaC. discoidea C. subhirtella C. campanulata ‘Feihan’ > C. campanulata C. subhirtella var pendula C. cerasoides. Considering field cultivation conditions, all the Cerasus species, except C. cerasoides, could survive winter around Hangzhou. In addition, C. subhirtella var pendula needed an effective protection against freezing under extremely cold weather.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-06-17;修回日期:2016-06-24
基金项目:杭州市园文局科技发展计划“樱属植物(中国樱花)种质资源的收集、评价和创新”(2013-02);杭州市科技发展计划(种子种苗专项)“特色樱花(红花早樱系列)良种选育与扩繁关键技术研究”(2014 0932H11)
作者简介:刘锦(1984- ),女,安徽亳州人,工程师,硕士。主要从事物种保育及植物保护研究。
更新日期/Last Update: 2016-11-10