[1]闫兴凯,卢明艳,武春昊,等.抗寒梨品种资源秋季叶片叶绿素荧光参数日变化比较[J].北方园艺,2022,(19):41-46.[doi:10.11937/bfyy.20221242]
　YAN Xingkai,LU Mingyan,WU Chunhao,et al.Comparsion on Chlorophyll Fluorescence Characteristics on the Cold-resistant Pear Varieties in Autumn[J].Northern Horticulture,2022,(19):41-46.[doi:10.11937/bfyy.20221242]
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抗寒梨品种资源秋季叶片叶绿素荧光参数日变化比较

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2022年19 页码: 41-46 栏目: 出版日期: 2022-10-15
Title:
Comparsion on Chlorophyll Fluorescence Characteristics on the Cold-resistant Pear Varieties in Autumn
作者:
闫兴凯; 卢明艳; 武春昊; 赵滢; 张茂君; 王强
（吉林省农业科学院 果树研究所，农业农村部东北地区(吉林)果树科学观测实验站，吉林 公主岭 136100）
Author(s):
YAN Xingkai; LU Mingyan; WU Chunhao; ZHAO Ying; ZHANG Maojun; WANG Qiang
(Pomology Research Institute，Jilin Academy of Agricultural Sciences/Scientific Observing and Experimental Station of Pomology (Jilin,Northeast Region)，Ministry of Agriculture and Rural Affairs，Gongzhuling,Jilin 136100)
关键词:
抗寒梨; 叶绿素荧光; 日变化; 低温胁迫
Keywords:
cold-resistant pear; chlorophyll fluorescence; diurnal variation; low temperature stress
DOI:
10.11937/bfyy.20221242
文献标志码:
A
摘要:
以‘南果梨’‘苹香梨’‘寒红梨’‘寒酥梨’和‘山梨’（野生秋子梨资源类型）为试材，采用枝条田间冻害调查法及叶绿素荧光参数测定法，研究了秋季叶片叶绿素荧光参数日变化对梨品种越冬抗寒性的影响，以期为梨品种抗寒性快速鉴定及我国北方寒冷地区梨优质栽培提供参考依据。结果表明：秋季抗寒梨品种资源光能转化效率由强到弱依次为‘山梨’>‘南果梨’>‘寒红梨’>‘苹香梨’>‘寒酥梨’，Fo、Fv、Fv/Fm 和Fv/Fo品种间差异达到极显著差异；品种间Fo、Fv、Fv/Fm 和Fv/Fo等日动态变化规律差异较大，Fo值大体呈现倒“V”字型，Fv值不同时间段内波动小整体呈上升趋势，Fv/Fo值与Fv/Fm值变化规律近乎一致；-31 ℃绝对低温下，品种冻害指数大小依次为‘寒红梨’>‘寒酥梨’>‘苹香梨’>‘南果梨’>‘山梨’，品种抗寒能力与Fo日变化呈显著负相关，与Fv/Fm日变化呈显著正相关。
Abstract:
Five varieties of ‘Shanli’‘Pingxiangli’‘Hanhongli’‘Hansuli’and ‘Shanli’(Pyrus ussuriensis) were used as test materials，the field freezing injury investigation method and chlorophyll fluorescence test method were used.The effect of diurnal variation of leaf chlorophyll fluorescence parameters in autumn on cold-resistance of pear varieties in winter was studied,in order to provide reference for rapid identification of cold resistance of pear varieties and high-quality cultivation of pear in cold regions of northern China.The results showed that light energy conversion efficiency of cold-resistant pear varieties in autumn was in the order of ‘Shanli’>‘Nanguoli’>‘Hanhongli’>‘Pingxiangli’>‘Hansuli’ from strong to weak.The differences among Fo,Fv,Fv/Fm and Fv/Fo varieties were extremely significant.Fo,Fv,Fv/Fm and Fv/Fo varied greatly among varieties,Fo values showed an inverted ‘V’ shape，Fv value of different varieties fluctuated slightly in different time periods and showed an overall upward trend,Fv/Fo value was almost consistent with that of Fv/Fm.At absolute low temperature of -31 ℃,the order of cold resistance of cultivars was ‘Hanhongli’>‘Hansuli’>‘Pingxiangli’>‘Nanguoli’>‘Shanli’,the cold tolerance was negatively correlated with diurnal Fo and positively correlated with diurnal Fv/Fm.

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备注/Memo

第一作者简介：闫兴凯（1976-），男，本科，助理研究员，现主要从事抗寒梨品种选育及配套栽培技术等研究工作。E-mail：yanxk8080@163.com.责任作者：王强（1975-），男，硕士，研究员，现主要从事抗寒梨品种选育及配套栽培技术等研究工作。E-mail：wangq7505@163.com.基金项目：国家梨产业技术体系资助项目（nycytx-28）。收稿日期：2022-03-30

更新日期/Last Update: 2022-12-06