Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2021, Vol. 11 ›› Issue (12): 80-86.doi: 10.11923/j.issn.2095-4050.cjas2020-0227

Special Issue: 农业气象

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Effect of Rain-shelter Cultivation on Grapevine Canopy Microclimate and Soluble Solid Content of Grape

SUN Enhong1,2(), ZHANG Kai1, HAN Xu1, WU Qiang3, YE Kun1, ZHANG Jianping3()   

  1. 1Jiangjin Modern Agrometeorology Experimental Station, Chongqing 402260, China
    2Jiangjin Meteorological Bureau, Chongqing 402260, China
    3Chongqing Institute of Meteorological Sciences, Chongqing 401147, China
  • Received:2020-10-23 Revised:2021-07-09 Online:2021-12-20 Published:2022-01-14
  • Contact: ZHANG Jianping E-mail:1243129506@qq.com;jeepjohn@163.com

Abstract:

Taking Chongqing as the study area in consideration of its hot and humid climate in summer, the study aims to clarify the influence of rain-shelter cultivation on grapevine canopy microclimate and soluble solid content of grape, and provide a theoretical basis for the scientific layout, sustainable management and production capacity enhancement of grape industry. The climate factors were monitored continuously from 2016 to 2017, such as wetness, temperature, and light intensive. Grape soluble solid content was also measured in rain-shelter cultivation and outdoor cultivation during grape maturity. The results showed that the rain-shelter cultivation could provide a more suitable humidity environment for grape compared with the outdoor cultivation. The humidity of grape leaves ranged from 256 to 275. The highest temperature of grape leaves was 28℃ (rainy day)-38℃(sunny day) in rain-shelter cultivation less than 32℃(rainy day)-42℃(sunny day) in outdoor cultivation. Light intensive in the rain-shelter cultivation was significantly less than that in outdoor cultivation. The shading rate was 26.5%-37.8%. ‘Xiahei’, ‘Red Fuji’, ‘Victoria’ and ‘Hutaibahao’ had higher soluble solid content in rain-shelter cultivation than in outdoor cultivation. The main climate factors of rain-shelter cultivation, such as humidity, temperature and light intensity, were better for the formation and accumulation of soluble solid in grape. The rain-shelter cultivation was more suitable for the development of grape industry in Chongqing and similar areas with high temperature and more rain in summer.

Key words: Grape, Rain-shelter Cultivation, Micro-environment, Soluble Solid, Climate Factors

CLC Number: