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园艺学报 ›› 2023, Vol. 50 ›› Issue (4): 724-736.doi: 10.16420/j.issn.0513-353x.2021-1297

• 研究论文 • 上一篇    下一篇

基于桃需冷量探讨气温变化对其适应性的挑战

严娟1,*, 赵滨涛1,2,*, 孙朦1, 宋宏峰1, 蔡志翔1, 李垍峣1,2, 宿子文1,2, 张明昊3, 沈志军1, 许建兰1, 马瑞娟1, 俞明亮1,**()   

  1. 1.江苏省农业科学院果树研究所,江苏省高效园艺作物遗传改良重点实验室,南京 210014
    2.南京农业大学园艺学院,南京 210014
    3.上海市农业科学院林木果树研究所,上海 201403
  • 收稿日期:2022-09-01 修回日期:2022-11-29 出版日期:2023-04-25 发布日期:2023-04-27
  • 作者简介:第一联系人:*共同第一作者
  • 基金资助:
    江苏省农业科技自主创新资金项目(CX(21)3014);国际现代农业产业技术体系建设专项资金项目(CARS-30);农业农村部物种保护项目(19210137);国家科技资源共享服务平台项目(NHGRC2021-NH16)

Adaptability of Peach Under Air Temperature Change Based on Chilling Requirment

YAN Juan1,*, ZHAO Bintao1,2,*, SUN Meng1, SONG Hongfeng1, CAI Zhixiang1, LI Jiyao1,2, SU Ziwen1,2, ZHANG Minghao3, SHEN Zhijun1, XU Jianlan1, MA Ruijuan1, YU Mingliang1,**()   

  1. 1. Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement,Institute of Pomology,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China
    2. College of Horticulture,Nanjing Agricultural University,Nanjing 210014,China
    3. Forest and Fruit Tree Research Institute,Shanghai Academy of Agricultural Sciences,Shanghai 201403,China
  • Received:2022-09-01 Revised:2022-11-29 Online:2023-04-25 Published:2023-04-27

摘要:

以12个地理位置和气候类型不同的地区2011—2021年气温数据为基本资料,通过0 ~ 7.2 ℃模型对各地区用于打破桃休眠的累积冷量(h)进行评估,同时统计已报道的基于0 ~ 7.2 ℃模型估算的589份桃品种资源的需冷量,分析各地区气温变化情况及其对冷量积累的影响,研判各地区桃品种资源面临的适应性挑战,并提出应对策略。研究结果表明,10年间,在11月初至翌年3月底(桃需冷量积累时间段),12个地区的气温均逐年升高,平均升高2 ℃,部分年份气温波动大。各地区冷量积累差异明显。随着纬度降低,冷量起始日期由早到迟,结束日期则由迟到早,冷量积累时间逐渐减少;各地平均累积冷量4.5 ~ 1 315 h,逐年降低趋势较明显,且纬度越低,降低趋势越明显。另外,气候带类型也对冷量累积有影响。累积冷量降低对各地桃的适应性产生了轻度、中度或重度影响。基于以上结果,对各地适宜生长的桃需冷量区间范围进行了预判,具体为:北京、蒙阴、郑州和南京以 < 1 000 h为宜,上海和杭州以600 ~ 700 h为宜,桂林以 < 400 h为宜,文山和古田以 < 200 h为宜(古田一些高海拔区域需冷量400 h的桃也可适应),福州以 < 100 h为宜,广州以 < 50 h为宜,海南需要基本不休眠、常绿类型的桃。未来桃产业发展需要加大低需冷量桃种质的创制和品种选育,优化主产区品种布局,合理制定南延栽培计划。

关键词: 桃, 需冷量, 气温变化, 适应性, 挑战

Abstract:

The objective of this research is to provide reference for the new germplasms creating,new cultivar breeding and regions of peach with low chilling requirement through clarifying the impact of air temperature change on the adaptability. Based on the air temperature data of 12 regions with different geographical locations and climate types in China from 2011 to 2021,this paper evaluates the chilling accumulation of the tested regions for breaking peach dormancy,and counts the chilling requirement of 589 peach resources by 0-7.2 ℃ model. Then,this study analyzes the air temperature change in the studied regions and its impact on the chilling accumulation to judge the peach adaptability challenge and point out some strategies. The results show that the temperature in the regions increased year by year with an average increase of 2 ℃ in 10 years,during the period of peach chilling accumulation from early November to the end of March of the following year,but some great fluctuation of the temperature in some years. There are significant differences of chilling accumulation in various regions. As the reduced latitude (from North to South),the start date of chilling accumulation changes from early to late,and the end date changes from late to early,and days of the chilling accumulation gradually decreased. The average chilling accumulation in each region varies from 4.5 to 1 315 h in 10 years. There is an obvious downward trend of the chilling accumulation year by year in each region with the lower the latitude,the more lowering tendency. In addition,the climate type also affects the chilling accumulation. The decrease of chilling accumulation in each region had a slight or moderate or severe impact on the peach adaptability with different chilling requirement. Based on these results,the range of peach chilling requirement in tested regions is predicted. The range of peach cold requirements for growth in different regions was predicted as follows:< 1 000 h for Beijing,Mengyin,Zhengzhou and Nanjing,600-700 h for Shanghai and Hangzhou,< 400 h for Guilin,< 200 h for Wenshan and Gutian(400 h adaption for some high-altitude areas in Gutian),< 100 h for Fuzhou and < 50 h for Guangzhou. There is non-dormant and evergreen peach in Hainan Province. In the future,the development of peach industry needs to increase the creating and breeding new germplasms and varieties with low chilling requirement,and also optimize the variety layout,and reasonably formulate the south extension cultivation plan.

Key words: peach, chilling requirement, air temperature change, adaptability, challenge

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