Effects of plant growth regulators on the fruit flavor quality of Shine Muscat grape

doi:10.16178/j.issn.0528-9017.20231139

Abstract

Abstract:

In order to investigate the effects of different concentrations and combinations of plant growth regulators such as gibberellin (GA₃), forchlorfenuron (CPPU), and thiobenzene (TDZ) on the fruit quality of Shine Muscat grapes, this study used 3-year-old Shine Muscat grapes as experimental materials. The results showed that different treatments had little effect on the content of soluble total sugar and soluble solids in fruits. However, under the same concentration of GA₃, the fruit treated with TDZ + GA₃had a higher solid acid ratio compared with the fruit treated with CPPU + GA₃, apart from that, there was no significant change in the total phenolic and vitamin C content. Similarily, under the same concentration of GA₃ of treatment, the fruit treated with TDZ + GA₃ had a higher content of alcohols, while the content of terpenes in the fruit treated with CPPU+ GA₃ was relatively higher. In addition, the content of aroma components with fragrant and fruity characteristics such as hexanal and 1-hexanol increased in the fruits treated with TDZ. Based on comprehensive comparative analysis, 2 mg·L^-1 GA₃ was used to pull the flower bud 15 days before flowering, 20 mg·L^-1 GA₃+2 mg·L^-1 TDZ was used to dip the inflorescence 2-3 days after full flowering, and 20 mg·L^-1 GA₃+2 mg·L^-1 TDZ was used to dip the fruit clusters 12-15 days after full flowering to obtain the best flavor of the Shine Muscat grape fruit.

Key words: Shine Muscat grape, CPPU, TDZ, GA₃, flavor quality

CLC Number:

S663.1

CHEN Zhe, XU Chao, LI Xiaoting, HUANG Yali, ZHU Zuoyi, DAI Fen. Effects of plant growth regulators on the fruit flavor quality of Shine Muscat grape[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(4): 952-957.

Figures/Tables 5

References 22

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处理	处理方法
处理	第一次	第二次	第三次
T1	—	DBY	DBY
T2	—	葡宁	葡宁
T3	2 mg·L^-1 GA₃	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU
T4	—	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU
T5	2 mg·L^-1 GA₃	20 mg·L^-1 GA₃+2 mg·L^-1 TDZ	20 mg·L^-1 GA₃+2 mg·L^-1 TDZ
T6	—	13.3 mg·L^-1 GA₃+2.7 mg·L^-1 CPPU	26.7 mg·L^-1 GA₃+2.7 mg·L^-1 CPPU+1.3 mg·L^-1 TDZ

处理	处理方法
处理	第一次	第二次	第三次
T1	—	DBY	DBY
T2	—	葡宁	葡宁
T3	2 mg·L^-1 GA₃	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU
T4	—	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU	20 mg·L^-1 GA₃+2 mg·L^-1 CPPU
T5	2 mg·L^-1 GA₃	20 mg·L^-1 GA₃+2 mg·L^-1 TDZ	20 mg·L^-1 GA₃+2 mg·L^-1 TDZ
T6	—	13.3 mg·L^-1 GA₃+2.7 mg·L^-1 CPPU	26.7 mg·L^-1 GA₃+2.7 mg·L^-1 CPPU+1.3 mg·L^-1 TDZ

处理	可溶性固形物含量/%	可溶性总糖含量/%	可滴定酸含量/(g·kg^-1)	固酸比	总酚含量/ (mg·g^-1)	V_C含量/ (mg·kg^-1)
T1	16.8±1.0 a	12.6±0.2 a	3.4±0.1 ab	47.2±1.9 b	0.32±0.014 a	64.0±12.0 a
T2	16.4±0.3 a	12.9±0.1 a	2.8±0.1 c	58.2±0.6 a	0.27±0.016 b	63.5±0 a
T3	16.9±0.4 a	12.2±0.5 a	3.6±0.5 a	47.7±6.6 b	0.22±0.007 d	56.0±6.0 a
T4	16.6±0.1 a	11.7±0.8 a	3.1±0.2 abc	52.4±3.3 ab	0.08±0.001 e	64.0±13.0 a
T5	17.4±0.6 a	12.1±1.1 a	3.0±0.2 bc	56.7±3.8 a	0.26±0.008 bc	53.0±7.0 a
T6	15.8±0.2 a	12.6±0.4 a	3.1±0.2 abc	51.6±2.8 ab	0.24±0.004 cd	53.0±4.0 a

处理	可溶性固形物含量/%	可溶性总糖含量/%	可滴定酸含量/(g·kg^-1)	固酸比	总酚含量/ (mg·g^-1)	V_C含量/ (mg·kg^-1)
T1	16.8±1.0 a	12.6±0.2 a	3.4±0.1 ab	47.2±1.9 b	0.32±0.014 a	64.0±12.0 a
T2	16.4±0.3 a	12.9±0.1 a	2.8±0.1 c	58.2±0.6 a	0.27±0.016 b	63.5±0 a
T3	16.9±0.4 a	12.2±0.5 a	3.6±0.5 a	47.7±6.6 b	0.22±0.007 d	56.0±6.0 a
T4	16.6±0.1 a	11.7±0.8 a	3.1±0.2 abc	52.4±3.3 ab	0.08±0.001 e	64.0±13.0 a
T5	17.4±0.6 a	12.1±1.1 a	3.0±0.2 bc	56.7±3.8 a	0.26±0.008 bc	53.0±7.0 a
T6	15.8±0.2 a	12.6±0.4 a	3.1±0.2 abc	51.6±2.8 ab	0.24±0.004 cd	53.0±4.0 a

处理	醛类种类 (相对含量/%)	酮类种类 (相对含量/%)	呋喃类种类 (相对含量/%)	醇类种类 (相对含量/%)	萜烯类种类 (相对含量/%)	酯类种类 (相对含量/%)	其他种类 (相对含量/%)	总计种类 (相对含量/%)
T1	10(83.62)	1(0.49)	3(0.42)	6(8.27)	11(6.72)	2(0.12)	3(0.36)	36(100)
T2	11(77.96)	2(0.85)	2(0.39)	6(10.92)	8(9.58)	2(0.18)	1(0.12)	32(100)
T3	11(81.13)	4(1.80)	3(0.36)	5(3.08)	11(13.23)	2(0.34)	1(0.06)	38(100)
T4	9(82.11)	3(1.13)	2(0.41)	4(4.01)	12(12.26)	1(0.08)	0	31(100)
T5	8(67.79)	4(2.11)	3(0.46)	6(21.46)	10(7.89)	3(0.29)	0	34(100)
T6	12(83.81)	3(1.06)	3(1.51)	5(6.71)	10(6.49)	1(0.06)	3(0.36)	37(100)