|Table of Contents|

Comparison of Low Temperature and Half Lethal Temperature and Evaluation of Cold Tolerance of 25 Pear Germplasm Resources

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年10
Page:
24-31
Research Field:
Publishing date:

Info

Title:
Comparison of Low Temperature and Half Lethal Temperature and Evaluation of Cold Tolerance of 25 Pear Germplasm Resources
Author(s):
QIN Qian1; JIANG Yan1; Muhetar·ZARE2; Ailijiang·MAIMAITI3
(1.College of Horticulture，Xinjiang Agricultural University，Urumqi，Xinjiang 830052；2.Institute of Economic Forestry，Xinjiang Academy of Forestry，Urumqi，Xinjiang 830092；3.College of Life Sciences，Xinjiang Agricultural University，Urumqi，Xinjiang 830052)
Keywords:
low temperature stress; relative conductivity; pear germplasm resources; semi lethal temperature
PACS:
S 661.2
DOI:
10.11937/bfyy.20234162
Abstract:
Twenty-five 1-year-old dormant branches of pear germplasm resources from Xinjiang were used as test materials and treated under artificial low temperature conditions (-18 ℃,-21 ℃,-24 ℃,-27 ℃，and -30 ℃) for 24 hours to study the changes in electrolyte leakage rate under different low temperature treatments.At the same time，the semi lethal temperature (LT50) of the branches was calculated using the logistic equation，aiming to discover excellent cold resistant germplasm resources and provide reference for the development，application，and introduction of cold resistant pear germplasm resources in the future.The results showed that under low temperature stress，the electrolyte leakage rate of 20 germplasm branches showed a similar trend，gradually increasing with the decrease of treatment temperature，but there were differences in the rate of increase among different germplasm resources.The other 5 pear germplasm showed a trend of first increasing and then decreasing.Among the 25 pear germplasm，the semi lethal temperature range was between -29.91 ℃ and -21.10 ℃.The tested germplasm was divided into three categories through cluster analysis,Xiao′erjiang，Shanshan Xiangli，and Xiaoxiangli belong to the group with strong cold resistance.Seven pear germplasms，including Yage Amuti，Bajiaoli，and Quanmuli Xiangli，belonged to the category with lower cold resistance.The other 15 pear germplasm belonged to the intermediate type of cold resistance.

References:

［1］滕元文.梨属植物系统发育及东方梨品种起源研究进展［J］.果树学报,2017,34(3):370-378.［2］田路明,曹玉芬,董星光,等.我国梨品种改良研究进展［J］.中国果树,2019(2):14-19.［3］蒋媛,位杰,林彩霞,等.6个香梨品种的低温半致死温度比较及耐寒性评价［J］.江苏农业学报,2017,33(6):1358-1363.［4］王睿哲,张蓓,郭铁群,等.5个梨品种在低温胁迫下的生理响应及抗寒性评价［J］.山东农业科学,2023,55(2):57-63.［5］邱英杰.不同品种北美海棠观赏特性及耐寒性研究［D］.秦皇岛:河北科技师范学院,2018.［6］LEBORGNE N,DUPOU-CZANNE L,TEULIRES C,et al.Lateral and rotational mobilities of lipids in specific cellular membranes of Eucalyptus gunnii cultivars exhibiting different freezing tolerance［J］.Plant Physiology,1992,100(1):246-254.［7］ZHAO X,ZHAN L P,ZOU X Z.Improvement of cold tolerance of the half-high bush Northland blueberry by transformation with the LEA gene from Tamarix androssowii［J］.Plant Growth Regulation,2011,63(1):13-22.［8］李文明,辛建攀,魏驰宇,等.植物抗寒性研究进展［J］.江苏农业科学,2017,45(12):6-11.［9］王红平,董铁,刘兴禄,等.5个苹果砧木品种枝条的低温半致死温度及耐寒性评价［J］.果树学报,2020,37(4):495-501.［10］王玮,李红旭,赵明新,等.7个梨品种的低温半致死温度及耐寒性评价［J］.果树学报,2015,32(5):860-865.［11］曹晓敏,迟馨,弟豆豆,等.6种苹果砧木的抗寒性比较研究［J］.中国果树,2020(4):12-17.［12］栗博文,贾亚男,周群,等.不同砧穗组合苹果枝条的抗寒性评价［J］.北方园艺,2023(19):36-43.［13］李俊才,刘成,王家珍,等.洋梨枝条的低温半致死温度［J］.果树学报,2007,24(4):529-532.［14］李岩,田维丽,谢恩俊,等.低温胁迫及生理生化指标综合评价抗寒茶树［J］.种子,2020,39(12):38-43,54.［15］撒俊逸,白茹,孙志红,等.自然越冬过程中库尔勒香梨抗寒性生理指标的变化［J］.石河子大学学报(自然科学版),2016,34(2):170-175.［16］胡春霞,王丽,汤杰.低温对南果梨的生理生化指标的影响［J］.沈阳农业大学学报,2009,40(3):349-352.［17］吴正保,史彦江,宋锋惠.阿克苏5个枣品种光合荧光特征及水分利用效率研究［J］.西北林学院学报,2012,27(4):43-49.［18］高爱农,姜淑荣,赵锡温,等.苹果品种抗寒性测定方法的研究［J］.果树科学,2000,17(1):17-21.［19］王小丽,方伟超,刘云鹤,等.58份桃种质资源抗寒性评价［J］.西北林学院学报,2018,33(6):138-144.［20］MITTLER R.Oxidative stress,antioxidants and stress tolerance［J］.Trends in Plant Science,2002,7(9):405-410.［21］李清亚,路斌,赵佳伟,等.不同豆梨品种对低温胁迫的生理响应及抗寒性评价［J］.西北农林科技大学学报(自然科学版),2020,48(1):86-94,110.［22］杨复康,杨燕君,宋永宏,等.不同杏品种抗寒性及生理指标［J］.北方园艺,2021(3):27-32.［23］解越,张敏,梁飞侠,等.电导法配合Logistic方程鉴定西葫芦和黄瓜果实抗寒性［J］.农业工程学报,2015,31(7):292-298.［24］石游,陈淑英,刁永强,等.引入伊犁河谷的8个苹果品种抗寒性评价［J］.经济林研究,2020,38(2):147-153.［25］任惠,王小媚,刘业强,等.应用电导率法和Logistic方程测定杨桃枝条抗寒性的研究［J］.西南农业学报,2016,29(3):662-667.［26］时朝,王亚芝,刘国杰.应用Logistic方程确定五种苹果枝条的半致死温度的研究［J］.北方园艺,2013(2):36-38.［27］克热木·伊力,买合木提·卡热,龙春跃，等.不同产量库尔勒香梨枝条抗寒性的评价［J］.新疆农业科学,2010,47(2):230-236.［28］魏鑫,刘成,王兴东,等.6个高丛越橘品种低温半致死温度的测定［J］.果树学报,2013,30(5):798-802.［29］邓仁菊,范建新,王永清,等.低温胁迫下火龙果的半致死温度及抗寒性分析［J］.植物生理学报,2014,50(11):1742-1748.

Memo

Memo:
-
Last Update: 2024-06-06