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Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (12): 2633-2640.doi: 10.16420/j.issn.0513-353x.2023-0083

• Cultivation Physiology & Biochemistry • Previous Articles     Next Articles

Effects of TDZ,CPPU and GA3 on Fruit Quality of‘Shine Muscat'Grape

ZHANG Feixue, ZHANG Shuhong*(), MA Yandong, CHEN Feng, SONG Xianjie, LIU Ruijie   

  1. Henan Xinlianxin Chemical Industry Co.,Ltd.,Xinxiang,Henan 453000,China
  • Received:2023-08-16 Revised:2023-11-10 Online:2023-12-25 Published:2023-12-29
  • Contact: ZHANG Shuhong

Abstract:

The‘Shine Muscat'grapes were used as the experimental material. Combined treatments of gibberellic acid(GA3),forchlorfenuron(CPPU),tiabenon(TDZ)were used to study their effects on fruit quality under different application methods,treatment periods,concentrations and combinations. The results from this were then used to screen for the best combination of growth regulators,and provide scientific basis for its cultivation of denuclearization. Results showed that:dipping 2 mg · L-1 TDZ + 1 mg · L-1 CPPU + 15 mg · L-1 GA3 into flower spikes within 24 h of blooming,dipping 4 mg · L-1 TDZ + 25 mg · L-1 GA3 in the early stage of fruit expansion had the best effect. The cluster mass and single fruit weight were 779.24 g and 9.84 g,respectively,which were increased by 35.14% and 22.24% compared with the water control group. The longth of the fruit was 27.69 cm,the width of fruit grain was 24.75 cm,and the seedless rate was 96%,which increased by 8.97%、16.53% and 118.18% compared with the control. The total acid content was 3.98 g · kg-1,decreased by 7.44% compared with the control group,vitamin C content was 7.98 μg · g-1,increased by 48.60% compared with the control group,soluble sugar content was 16.28%,increased by 21.95% compared with the control group. This treatment had larger fruit size and better taste,and could significantly improve the fruit quality of‘Shine Muscat'. It is the most suitable combination of planting and conditioning for‘Shine Muscat'grape.

Key words: grape, tiabenon, gibberellic acid, forchlorfenuron, seedless, quality