Affiliation:
1. Shandong Academy of Grape, Shandong Engineering Technology Research Centre of Viticulture and Grape Intensive Processing, Winegrape and Wine Technological Innovation Center of Shandong Province, Jinan 250100, China
Abstract
Several studies have revealed that fruit-zone leaf removal could change the microclimate of grapevine growth, thereby causing complex effects on fruit composition. This study analyzed the profiles of volatiles in Cabernet Sauvignon (Vitis vinifera L.) grapes exposed to leaf removal treatment at different phenological periods in three continuous years. The treatments (leaf removal before flowering, after flowering, and veraison) were applied to Cabernet Sauvignon grapevines grown in Yantai (Shandong, China). Berry samples were harvested at maturation to determine the chemical composition, including total soluble solids, phenols, and volatiles. Leaf removal (particularly before flowering) could increase total soluble solids and phenols (anthocyanins, flavonols, and tartaric esters). Volatiles greatly changed in the different years, and leaf removal before flowering could increase the concentration of amino acid-derived volatiles and isoprene-derived volatiles compared with leaf removal after flowering or at veraison. This research provides a basis for further studies on optimizing Cabernet Sauvignon aroma and breeding in vineyards.
Funder
Natural Science Foundation of Shandong Province
Special Fund for International cooperation of Shandong Academy of Agricultural Sciences
Scientific Research Guidance Fund of Shandong Academy of Grape
Major Project of Science and Technology of Shandong Province
National Natural Science Foundation of China
Key Areas Science & Technology Project of the 12th Division, Xinjiang Production and Construction Corps
Agricultural Science and Technology Innovation Project of Shandong Academy of Agricultural Sciences
Subject
Agronomy and Crop Science
Cited by
1 articles.
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