Journal of Tianjin Agricultural University ›› 2020, Vol. 27 ›› Issue (1): 10-14.doi: 10.19640/j.cnki.jtau.2020.01.003

• Researches and Scientific Notes • Previous Articles     Next Articles

Effect of different immersion time on grape cracking

ZHANG Wei-long1, YANG Jing-hui1,Corresponding Author, LIANG Fa-hui1, LÜ Chen-fei1, FENG Guo-hua2, LIU Yan-jun1   

  1. 1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China;
    2.Tianjin Municipal Highway Bureau, Tianjin 300384, China
  • Received:2019-09-24 Published:2020-04-01

Abstract: In order to study the relationship between grape cracking fruit and variety and water content, four varieties including ‘Red Globe’‘Wink’‘Italia’and‘Muscat Hamburg’were used as materials to observe the weight change and fruit cracking of the grapes under the condition of 0~60 h immersion. The results showed that the water absorption rate of‘Italia’was 7.89%, and the water absorption rates of‘Red Globe’‘Wink’and‘Muscat Hamburg’were between 2.50% and 3.24%;at the same time the water absorption rates and time of‘Red Globe’‘Wink’and‘Italia’increased first and then decreased. The water absorption rate of‘Muscat Hamburg’fruit in the early stage was higher, and the water absorption rate did not change much with time.‘Red Globe’(50%)and‘Italia’(50%)had significantly higher rates of fruit cracking than‘Wink’(25%)and‘Muscat Hamburg’(25%)and the growth rate of‘Red Globe’cracking rate in the early stage was the highest. The water absorption rate and fruit cracking rate of‘Red Globe’‘Wink’‘Italia’and‘Muscat Hamburg’were all significantly positively correlated, and the‘Red Globe’cracking rate increased the fastest with the growth of water absorption rate.

Key words: grape, fruit dripping, time, fruit cracking rate

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