|Table of Contents|

Effects of GA3 and CPPU Treatments on Fruit Quality of Grape Varieties ‘Hutai No.8’ and ‘Summer Black’

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2021年09
Page:
8-17
Research Field:
Publishing date:

Info

Title:
Effects of GA3 and CPPU Treatments on Fruit Quality of Grape Varieties ‘Hutai No.8’ and ‘Summer Black’
Author(s):
GUO Junqiang; TANG Ting; CHEN Ziqiu; ZHANG Songlin; LI Zhi; WANG Xiping
(College of Horticulture，Northwest A&F University/State Key Laboratory of Crop Stress Biology in Arid Areas/Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China，Ministry of Agriculture and Rural Affairs，Yangling，Shaanxi 712100)
Keywords:
GA3; CPPU; ‘Hutai No.8’ grape; ‘Summer Black’ grape; fruit quality; principal component analysis
PACS:
-
DOI:
10.11937/bfyy.20203625
Abstract:
Taking ‘Hutai No.8’ and ‘Summer Black’ as experimental materials,the former was treated with eleven groups of GA3 and CPPU,and the latter was treated with eight groups,both taking water as control.The appearance,shape and internal quality of grape under different GA3 and CPPU treatments were studied,in order to provide a reference basis for the production of high-quality and healthy grapes.The results showed that GA3 and CPPU treatment increased single fruit weight was 6.00-12.00 g (CK was about 3.00 g)，fruit shape index was 1.05-1.25 (CK less than 1.05)，peel hardness was 7.50-11.00 N (CK less than 7.00 N).The color of almost all fruit surface was enhanced significantly.The soluble solids content，total acid content and solid-acid ratio of ‘Hutai No.8’ grape showed no obvious regular difference.However，the soluble solid content and solid acid ratio of ‘Summer Black’ grape increased obviously，tartaric acid content in grape fruit decreased and L-malic acid content increased.Comprehensive analysis showed that the best treatment of ‘Hutai No.8’ grape was soaking in 25 mg?L-1 GA3 within 1-3 days of blooming period，then dip with 50 mg?L-1 GA3 and 2 mg?L-1 CPPU in the next 10-15 days.In addition，the optimum treatment of ‘Summer Black’ grape was dip 25 mg?L-1 GA3 in full bloom，after that dip 50 mg?L-1 GA3 and 2 mg?L-1 CPPU during the next 10-15 days.

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Last Update: 2021-08-06