Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (5): 65-74.doi: 10.11924/j.issn.1000-6850.casb20200300251

Special Issue: 农业气象

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Climatic Suitability Planting Regionalization of Orah’s Fruit Quality Grade in Guangxi

Tan Zongkun1(), Luo Zenggui2, Wang Jing3   

  1. 1Guangxi Zhuang Autonomous Region Institute of Meteorological Science, Nanning 530022
    2Guangxi Wuming Qifeng Orange Ecological Agriculture Co., LTD., Nanning 530100
    3Agricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007
  • Received:2020-03-25 Revised:2020-08-17 Online:2021-02-15 Published:2021-02-25

Abstract:

In this study, the climate suitability planting map of Orah’s fruit quality grade in Guangxi was compiled, aiming to provide a basis for optimizing the layout of citrus industry. Based on the “3S” technology and the climatic factor suitability index in the critical periods of citrus fruit quality formation, the climatic factor suitability of Guangxi high-quality Orah’s fruit was evaluated. There is no obvious regional difference in climate suitability from the flower bud to the full flowering period and the physiological fruit-falling period, and most areas are of the best or high-quality grade; the climate element suitability of the fruit expansion period to the mature harvest period has obvious regional characteristics. Among them, the climate suitability grade of fruit coloring stage and maturity stage showed a decreasing trend with increasing latitude, which is consistent with the winter temperature decreasing with latitude and unable to meet the caloric conditions required for the fruiting and ripening of Orah’s fruit. The most suitable climatic region for excellent Orah’s fruit quality grade in Guangxi is mainly distributed in the areas near north-link line, Youjiang River valley, southwestern Guangxi, and etc.

Key words: Orah, fruit quality, climate, suitability, division

CLC Number: