| 电解质渗出率配合Logistic方程鉴定7个平欧杂种榛品种(系)的抗寒性 |
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| 引用本文： | 梁锁兴,席海源,王文平,侯东梅,孟庆仙,张明丽.电解质渗出率配合Logistic方程鉴定7个平欧杂种榛品种(系)的抗寒性[J].农学学报,2017,7(4):34-38. |
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| 作者姓名： | 梁锁兴 席海源 王文平 侯东梅 孟庆仙 张明丽 |
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| 作者单位： | 山西省农业科学院果树研究所,山西太谷,030815 |
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| 基金项目： | 山西省科技攻关项目“榛子引种驯化培育技术研究”(2007031070-1)；山西省科技攻关项目“抗寒、丰产榛子新品种选育及配套栽培技术研 究”(20100311021)；山西省科技攻关项目“抗春旱、早果平欧榛品种选育”(20130311022-5)；山西省科技攻关项目“雄花优、抗抽条平欧杂种榛新品种 选育”(201603D221015-4)。 |
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| 摘 要： | 低温冻害是影响平欧榛生长发育的最主要因素之一。为研究不同平欧杂种榛品种(系)之间抗寒性的差异性,采用人为低温胁迫诱导,对平欧杂种榛不同品种(系)休眠期成熟一年生枝进行电解质渗出率的测定,配合logistic方程进行变化曲线拟合,以计算各品种(系)低温半致死温度(LT50),鉴定7个平欧杂种榛品种(系)的抗寒性,并与田间露地越冬试验进行比较分析。结果表明,随着温度的下降,平欧杂种榛各试验品种(系)电解质渗出率逐渐增大,曲线变化趋势基本一致,但增幅有所不同,各品种曲线拐点温度(低温半致死温度)分别为‘06-21’(品系)-19.224℃、‘达维’-18.942℃、‘82-11’(品系)-16.630℃、‘金铃’-16.246℃、‘辽榛3号’-16.139℃、‘魁香’-15.859℃、‘84-572’(品系)-15.248℃。综上分析说明7个平欧杂种榛品种(系)的抗寒性由强至弱顺序为‘06-21’‘达维’‘82-11’‘金铃’‘辽榛3号’‘魁香’‘84-572’,与田间试验基本吻合,说明平欧杂种榛半致死温度可作为抗寒性鉴定评价的一个重要指标。
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| 关 键 词： | 平欧杂种榛 电解质渗出率 半致死温度 抗寒性 |
| 收稿时间： | 2016/10/19 0:00:00 |
| 修稿时间： | 2016/12/24 0:00:00 |
Determination of Cold-Resistance for 7 Flat-European Hazel Cultivars Through Electrical Permeation Rate Combining Logistic Equation |
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| Liang Suoxing,Xi Haiyuan,Wang Wenping,Hou Dongmei,Meng Qingxian,Zhang Mingli.Determination of Cold-Resistance for 7 Flat-European Hazel Cultivars Through Electrical Permeation Rate Combining Logistic Equation[J].Journal of Agriculture,2017,7(4):34-38. |
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| Authors: | Liang Suoxing Xi Haiyuan Wang Wenping Hou Dongmei Meng Qingxian Zhang Mingli |
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| Abstract: | Freezing injury is one of the main factors influencing the growth and development for European hazel. To study the cold-resistance for different European hazel cultivars, artificial low temperature stress was used, and the electrical permeation rates of mature one-year-old shoots of 7 flat-European hazel cultivars were determined during the dormant period. Then combining logistic equation and curve-fitting, semi-lethal low temperature (LT50) and cold-resistance of the 7 cultivars were calculated and appraised, which were compared with the results of field over-wintering test. Results showed that with the fall of temperature, the electrical permeation rate of the 7 cultivars increased, and the changing curves were almost the same. Yet the increasing extent was different. The semi-lethal low temperature (LT50) was-19.224℃for'06-21',-18.942℃for'Davey',-16.630℃ for'82-11',-16.246℃ for'Jinling',-16.139℃ for'Liaozhen 3',-15.859℃ for'Kuixiang'and-15.248℃for'84-572', respectively, which showed that the order of cold-resistance of'06-21'>'Davey'>'82-11'>'Jinling'>'Liaozhen 3'>'Kuixiang'>'84-572'. This result was almost the same as that of the field test, which indicated that the semi-lethal low temperature (LT50) could be used as an important index for evaluating cold-resistance of flat-European hazel cultivars. |
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| Keywords: | flat-European hazel electrical permeation rate semi-lethal low temperature (LT50) cold-resistance |
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