Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (10): 1879-1888.DOI: 10.3969/j.issn.1004-1524.2021.10.11

• Horticultural Science • Previous Articles     Next Articles

Effects of forchlorfenuron on growth and quality of Fujiminori grape under different fertilizer applications

SONG Wen1(), WANG Qiang1, ZHANG Jia2, LIU Caixiu1, ZHANG Nan2, CHEN Liping1, NIE Dongxing2, YAO Haili1, CANG Tao1,*()   

  1. 1. Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences/Risk Assessment Lab for Agricultural Products(Hangzhou), Ministry of Agriculture and Rural Affairs/Zhejiang Province Key Laboratory of Detection for Pesticide Residues and Control, Hangzhou 310021, China
    2. Institute for the Control of Agrochemicals, Ministry of Agriculture and Rural Affairs, Beijing 100125,China
  • Received:2021-01-28 Online:2021-10-25 Published:2021-11-02
  • Contact: CANG Tao

Abstract:

This study investigated effects of forchlorfenuron on growth and quality of Fujiminori grape under different fertilizer applications to explore the preferable treatment. A two-factor randomized block design with three replications was employed. The factors were fertilizer applications and forchlorfenuron concentrations. The results showed that fertilization and forchlorfenuron had significant effects on berry size, 100-berry weight and bunch weight of Fujiminori grape. Nevertheless, high concentration of forchlorfenuron (50 mg·kg-1) was of limited effect on yield components. Fertilizer application was the main factor increasing the grain size uniformity index. Meanwhile, forchlorfenuron concentrations had the main effect on the stem diameter and stem suberization index, but adequate fertilizers could alleviate the side effect of stem suberization. Both fertilizer and forchlorfenuron could significantly affect fruit quality of Fujiminori grape. Under 50 mg·kg-1forchlorfenuron treatment, the lowest ratio of sugar to acid was observed in the adequate fertilizer application; the lowest contents of soluble solids and total flavonoids were detected in the no fertilizer application. When Fujiminori grape berries were ripe, the forchlorfenuron residue of grape berries of all the treatments decreased to below the detection limit.The radar chart was drawn with six representative evaluating indicators after dimensionless processed,which showed that treatments of 10 mg·kg-1 and 20 mg·kg-1forchlorfenuron based on adequate fertilizer had the strong advantages in grape growth, yield and quality, and their indices were in a good equilibrium. This study indicated that the adequate fertilizer application was more effective than using forchlorfenuron only in grape production. In addition, the applied forchlorfenuron dosage exceeding the maximum registered dosage was not recommended.

Key words: forchlorfenuron, fertilizer, Fujiminori grape, stem suberization, sugar-acid ratio

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