Zaixiang Chi¹, Xianju Long^2*, Zhengjing Du³, Xiang Sun¹, Qiuling Hu⁴, Yuan Long¹

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¹ Liupanshui Meteorological Bureau of Guizhou Province, Liupanshui, China.
² Southeast Guizhou Prefecture Meteorological Bureau of Guizhou Province, Kaili, China.
³ Guizhou Meteorological Service Center, Guiyang, China.
⁴ Liupanshui City Plant Inspection and Protection Station of Guizhou Province, Liupanshui, China.
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Abstract: Using the climatic data, such as extreme minimum temperature and relative humidity, in 15 bases in the main planting area of Guizhou Red Heart Kiwifruit from December 1st to next April 30th, respectively, from 2010 to 2018, combined with the monitoring of red heart kiwifruit ulcer disease, we analyze the occurrence and prevalence of meteorological factors and dynamic characteristics of the red heart kiwifruit ulcer disease in Guizhou, China. The results showed that the main period of occurrence and prevalence of red heart kiwifruit ulcer was from March to April. In winter, when the daily average temperature of 5 d and above is ≤2°C, the daily extreme minimum temperature is ≤−2°C, and the daily average relative humidity is ≥75%, it is beneficial for the ulcer pathogen to lurk and propagate in the plant. It is suggested that this meteorological condition should be used as an early warning indicator for the prevention of ulcer disease of red heart kiwifruit, in order to actively organize prevention after the emergence of early warning indicators to improve the prevention and treatment effect. In spring, the average daily temperature of 5 d and above is ≤18°C, and the daily average relative humidity is ≥80%, which is easy to induce ulcer disease. It can be seen that the first is the winter climatic conditions to meet the breeding of ulcer disease, and then the spring climatic conditions must also meet the rapid propagation of ulcer disease, ulcer disease can occur, develop and popularize. It is of great practical significance to carry out experiments on the relationship between the occurrence of ulcer disease in Guizhou red heart kiwifruit and meteorological conditions.

Keywords: Red Heart Kiwifruit, Ulcer Disease, Temperature Condition, Humidity Condition

Cite this paper: Chi, Z. , Long, X. , Du, Z. , Sun, X. , Hu, Q. and Long, Y. (2019) Climatic Experiment on Guizhou Red Heart Kiwifruit Ulcer Disease. Journal of Geoscience and Environment Protection, 7, 251-273. doi: 10.4236/gep.2019.74017.

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