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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (9): 2464-2476.doi: 10.16420/j.issn.0513-353x.2024-0877

• Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

Effect of Different Light Quality on Berry Quality of‘Shine Muscat’Grape

REN Tingting1, ZHANG Tingxiu1, ZHAN Liang2, ZHANG Zhichang3, REN Yiran1, JI Xinglong1, WANG Peipei1, LIU Yuanxia1, MENG Qingfu4, LIU Gengsen1, FANG Jinggui5, LENG Xiangpeng1,*()   

  1. 1 Grape Science and Engineering Research InstituteCollege of Horticulture,Qingdao Agricultural University,Qingdao, Shandong 266109, China
    2 Shandong Qingda Seedlings Co.Ltd,Laixi, Shandong 266600, China
    3 Shandong Zhichang Agricultural Science and Technology Development Co.Ltd,Rizhao, Shandong 276500, China
    4 Qingdao Dacun Construction Co.Ltd,Qingdao, Shandong 266400, China
    5 College of HorticultureNanjing Agricultural University, Nanjing 210095, China
  • Received:2025-01-07 Revised:2025-07-07 Online:2025-09-25 Published:2025-09-24
  • Contact: LENG Xiangpeng

Abstract:

Six different light treatments,including white(W),red(R),blue(B),and different ratios of red and blue light(11,41,14),were used to monitor the photosynthetic characteristics and fruit quality of‘Shine Muscat’grapes under protected cultivation. Compared to the control group(CK,without supplemental light),all light treatments significantly increased the net photosynthetic rate,transpiration rate and stomatal conductance,and reduced the intercellular CO2 concentration. The red/blue and blue(B)treatment displayed the most significant effects on the photosynthesis. Furthermore,all supplemental light treatments showed significant impacts on grape fruit quality. Among them,R1B4 treatment not only increased the single berry weight,transverse and longitudinal diameter,soluble sugars and monoterpene content,but also accelerated the chlorophyll and organic acid degradation,thereby improving berry quality. In conclusion,R1B4 treatment is the most effective strategy to improve the berry quality of‘Shine Muscat’grape.

Key words: grape, supplementary lighting treatment, photosynthesis, berry quality