Effects of Selenium on Yield and Quality of Grapes
ZHANG Ke
LV Zhongwei
LOU Yusui
CUI Xiaoyue
LU Huiran
FAN Hongjie
WU Wenying
SHANG Hongquan
Abstract：This study was conducted on the grape variety'Jumeigui'with four different selenium concentration levels.The grapevines were sprayed once each during the fruit set stage and during the fruit development stage to explore the effects of selenium on grape fruit yield and quality.The results showed that foliar application of selenium significantly increased the selenium content in grape fruits,leaves,and canes,and the selenium content increasing with rising selenium application concentration.At a selenium concentration of 40 mg/L,the fruit selenium content reached its highest level(46.852 mg/g).Indicators such as single berry weight,single cluster weight,yield,and nutritional components in grape fruits,such as soluble solids content,fructose content,flavonoids and total phenols,generally showed an upward trend with increasing selenium application concentration,while titratable acid content exhibited an overall downward trend.At 30 mg/L,the contents of soluble solids and fructose in grape fruits reached the highest levels,at 22.270%and 102.667 mg/g,respectively.Therefore,based on a comprehensive evaluation using principal component analysis,30 mg/L of amino acid selenium fertilizer was determined as the optimal spraying concentration,providing a reference for the standardized production of selenium-enriched grapes.
Keywords：Selenium amino acid'Jumeigui'grapeselenium contentnutritional value
Publication Date：2026-01-31
Online Publishing Date：2026-08-28(First online date of this platform, not the publication date of the document)
Pages：6( 31-36 )