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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (27): 36-44.doi: 10.11924/j.issn.1000-6850.casb2022-0855

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The Response of the Main Functional Components of Red Raspberry Fruit and Leaves to Organic Fertilizer Application

ZHANG Wei1(), CHANG Feiyang1, ZHANG Peiyan1, ZHANG Peifeng1, ZHANG Xuemei1,2()   

  1. 1 College of Forestry, Hebei Agricultural University, Baoding, Hebei 071000
    2 Research Center for Walnut Engineering and Technology of Hebei, Xingtai, Hebei 054000
  • Received:2022-10-17 Revised:2023-05-17 Online:2023-09-25 Published:2023-09-22

Abstract:

The paper aims to investigate the effect of organic fertilizer on the content of the main functional components of red raspberry. The content of total ellagic acid, salicylic acid, total sugars, anthocyanin and polyphenols in the fruits and leaves were determined by applying base fertilizer of sheep manure and organic fungal fertilizer to double-season red raspberry ‘Heritage’ at different developmental phase (fertilizer application rates of 30×103, 60×103 and 120×103 kg/hm2, denoted by Y2, Y4, Y8, J2, J4, J8 respectively). Radar plot analysis was used to evaluate the fertilizer type and amount. The results showed that: (1) the total ellagic acid content of fruits and leaves reached the highest under J4 and J8 treatments at the second flowering and first fruiting stage, with 4.76 and 22.61 mg/g,respectively, which increased by 29.72% and 172.50% compared to CK. (2) The salicylic acid content of fruits and leaves were significantly higher than all other treatments under Y4 and Y2 at the second flowering period and first fruiting period, respectively, at 51.28 and 460.30 μg/g. (3) The total sugar content of fruits and leaves reached the highest under Y8 and Y2 treatments at the second fruiting period and first fruiting period, which were 10.10% and 41.38%. (4) The content of anthocyanin in fruits and leaves reached the highest level of 12.74 and 1.16 mg/g under J2 and Y2 treatments at the second flowering and early fruiting stages, respectively. (5) Fruits and leaves polyphenols contents reached the highest under Y4 and J4 in the second flowering period, which were 7.04 and 27.46 mg/g, respectively. The comprehensive evaluation of Radar chart showed that the highest comprehensive evaluation was achieved under Y2, J4, and J8 in the three resultant periods. The content of the main functional components in the fruits and leaves of red raspberry can be increased by the application of organic fertilizers. The J4 treatment was the best fertilization treatment, taking into account the actual cost requirements of production.

Key words: red raspberry, organic fertilizer, functional component, ellagic acid, salicylic acid