|Table of Contents|

Dynamic Changes of Nutrients in Different Varieties of Wine Grapes During Fruit Development Based on Principal Components

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年14
Page:
16-23
Research Field:
Publishing date:

Info

Title:
Dynamic Changes of Nutrients in Different Varieties of Wine Grapes During Fruit Development Based on Principal Components
Author(s):
CAO Weiyu; SHU Nan; WEN Jinli; LU Wenpeng
(Institute of Special Wild Economic Animal and Plant Science,Chinese Academy of Agricultural Sciences,Changchun,Jilin 130117)
Keywords:
wine grape; developmental stage; principal component analysis; quality traits
PACS:
-
DOI:
10.11937/bfyy.20220073
Abstract:
Seven wine grape varieties，‘Hassan’‘Zuoshan′er’‘Beibinghong’‘Zuoyouhong’‘Beda’ ‘Shuanghong’ ‘Zijingganlu’ were used as test materials.The indicators were measured，and the correlation analysis and principal component analysis were used to comprehensively evaluate the quality of different varieties of wine grapes at maturity，and to study the changes in nutrients in different development periods and the differences in the characteristics of wine grapes at different maturity periods，in order to provide reference for the development of grape processing products with local characteristics.The results showed that in the four main stages of fruit development，soluble solids，total sugars，total anthocyanins，tannins content and total phenols content showed an overall upward trend，the components tended to be stable during the ripening period,and total acids showed an overall downward trend.In the mature stage，‘Zuoyouhong’ had the highest soluble solids content and total sugar content，‘Shuanghong’ had the highest total acid and anthocyanin content，‘Hassan’ had the highest total phenolic content and solid-acid ratio，and ‘Zijingganlu’ had the highest tannin content.The correlation analysis and principal component analysis were carried out on the quality traits of wine grapes at the mature stage，and four principal components with characteristic roots greater than 1 were extracted，and the variance contribution rates of the four principal components were 35.139%，25.018%，22.905%，11.985%.The fruit quality scores of the seven wine grapes in the ripening stage were ‘Beda’‘Hassan’‘Zuoyouhong’‘Zijingganlu’ ‘Zuoshan′er’‘Shuanghong’‘Beibinghong’.

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Last Update: 2022-09-06