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农学学报 ›› 2017, Vol. 7 ›› Issue (4): 34-38.doi: 10.11923/j.issn.2095-4050.cjas16100022

• 林学 园艺 园林 食用菌 • 上一篇    下一篇

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

梁锁兴,席海源,王文平,侯东梅,孟庆仙,张明丽   

  1. 山西省农业科学院果树研究所 山西 太谷030815,山西省农业科学院果树研究所 山西 太谷030815,山西省农业科学院果树研究所 山西 太谷030815,山西省农业科学院果树研究所 山西 太谷030815,山西省农业科学院果树研究所 山西 太谷030815,山西省农业科学院果树研究所 山西 太谷030815
  • 收稿日期:2016-10-19 修回日期:2016-12-24 接受日期:2017-01-10 出版日期:2017-04-26 发布日期:2017-04-26
  • 通讯作者: 梁锁兴 E-mail:suoxingliang@163.com
  • 基金资助:
    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)。

Determination of Cold-Resistance for 7 Flat-European Hazel Cultivars Through Electrical Permeation Rate Combining Logistic Equation

  • Received:2016-10-19 Revised:2016-12-24 Accepted:2017-01-10 Online:2017-04-26 Published:2017-04-26

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。

关键词: 农户关联, 农户关联, 特色农业种植, 农户支持度, 结构方程模型, 武威市

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‘06-1’,-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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