Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (34): 134-141.doi: 10.11924/j.issn.1000-6850.casb20200100072

Special Issue: 园艺

Previous Articles     Next Articles

Effects of Light Quality on Nutrition and Flavor Quality in Tomato

Yang Zhongwu1(), Liu Yi1, Jin Zhuojun2, Xu Weihong2()   

  1. 1Agriculture and Rural Committee of Chongqing Wulong District, Chongqing 408500
    2College of Resources and Environmental Sciences, Southwest University, Chongqing 400715
  • Received:2020-01-21 Revised:2020-07-22 Online:2020-12-05 Published:2020-12-15
  • Contact: Xu Weihong E-mail:317302315@qq.com;xuwei_hong@163.com

Abstract:

Field experiment was conducted to study the effect of various light qualities (white, blue, black, red and green) on the nutrition and flavor quality of tomato. The results showed that during the aging period, the black light promoted the accumulation of total nitrogen, protein nitrogen and non-protein nitrogen. From green maturity to transition period, the total organic acid of tomato fruit under white light increased by 4.57 times, and the content of total sugar and reducing sugar in tomato fruit was increased by blue and green light compared with that of the aging period. From the color conversion period to the maturity period, the content of amino acid was in order of blue light> green light> black light> red light> white light, and the total amount of organic acid in tomato fruit increased by 27.8% under black light compared with the color conversion period, and the content of lycopene and Vc was increased and the nitrate content was decreased by red light, and the content of total sugar and reducing sugar in tomato fruit was increased by white, red and green light. Methyl salicylate, 6-methylheptane 2 ketone, citrene and anti-2hexene aldehyde were the main flavor of tomato fruit (>30 μg/kg). The methyl salicylate, 6-methyl-heptene-2-one and hexenal of tomato increased by 11.6%, 20.2% and 17.2%, respectively, under red light. Red light can be used to improve the nutritional quality and flavor of tomato fruit during the period of color conversion to maturity.

Key words: light quality, tomato, nutritional quality, amino acid components, volatile substances

CLC Number: