Effects of Near-surface Low Temperature on Freezing Injury of‘Tunisian Soft-Seed’Pomegranate

• 作者: Che Xiaojie Feng Yuzeng Jie Bo Li Shuang Liu Yibo Shen Xiaoyan
• 来源期刊: Plant Diseases and Pests(植物病虫害研究:英文版)
• 学科: 经济
• 关键词: NEAR-SURFACE low temperature Soft-seed POMEGRANATE FREEZING INJURY
• 年，卷（期）: pdapzwbchyj_2019,（4）
• 页码范围: 21-25
• 页数: 5页
• 分类号: F42

摘要

[Objective]The paper was to explore the influence of near-surface low temperature on cultivation of soft-seed pomegranate,and to provide guidance for planting location of soft-seed pomegranate.[Method]Taking 10 soft-seed pomegranate planting plots under different site conditions as the research objects,the near-surface low temperature of 45-50 cm was dynamically monitored from December 1,2018 to February 20,2019,and comparative analysis was made based on the local meteorological data over the same period.[Result]The near-surface low temperature of each temperature monitoring point was lower than the local meteorological data,which were all in the range of low temperature causing freezing in-jury of pomegranate trees,but the degree of freezing injury was different.The variation of near-surface low temperature was positively correlated with the altitude of terrain,but negatively correlated with the difference of topography and landform.When the local topography and landform were similar,the accumulation time of near-surface low temperature was negatively correlated with the altitude of terrain,while the duration of low tem-perature directly affected the degree of freezing injury.[Conclusion]The development of soft-seed pomegranate cultivation in Tunisia along Huang Mangling region in Henan Province refers to the local meteorological data.Meantime,it is also necessary to pay attention to the impact of regional microclimate environment,especially early monitoring of near-surface temperature to select suitable site and natural conditions.