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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (4): 973-983.doi: 10.16420/j.issn.0513-353x.2024-0295

• Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

The Effect of Methionine on the Growth of Peach Tree Shoots and Fruit Quality

DU Hao,ZHAO Shilong,XIAO Yuansong,LUO Jingjing*luo.jingj@163.com,and PENG Futian*pft@sdau.edu.cn   

  1. College of Horticultural Science and Engineering,Shandong Agricultural University,Tai’anShandong 271018,China
  • Received:2024-12-05 Revised:2025-02-19 Online:2025-04-25 Published:2025-04-25
  • Contact: LUO Jingjing,PENG Futian

Abstract: Peach trees have a large amount of new shoot growth and require more pruning labor. Previous studies have shown that amino acid fertilizers can not only be used as a new type of nitrogen fertilizer,but also have a certain effect on controlling the growth of new shoots. However,the effect and mechanism of using methionine to control shoots are not clear. Using 5-year-old‘Yuanxiangmi’peaches as test materials,foliar spraying of equal concentrations of methionine and urea was conducted to analyze their effects on peach shoot growth and fruit quality,providing a theoretical basis for finding safe and effective nutritional green control substances to inhibit redundant growth of peach tree shoots. The research results showed that compared with urea treatment,spraying of low methionine significantly inhibited shoot growth. However,after methionine treatment the net photosynthetic rate of leaves was significantly increased(17.39%),and the content of lignin and pectin in the branches was increased,resulting in an increase in branch strength;Reduced the content of gibberellin(36.85%)and auxin(24.96%)in branches and shoots,while improving the quality of single fruit and increasing the content of soluble solids in fruit.

Key words: peach, methionine, urea, shoot, fruit, quality

CLC Number: