Effects of Inner-Row Ground Management on the Volatomics of 'Cabernet Sauvignon' Grapes and Wines in the Region of the Eastern Foothills of the Ningxia Helan Mountains in Northwest China

Fei He; Meng-Bo Tian; Wei-Peng Duan; Wei-Ming Yang; Xue Mao; Jun Wang; Chang-Qing Duan

doi:10.3390/foods12132472

Effects of Inner-Row Ground Management on the Volatomics of 'Cabernet Sauvignon' Grapes and Wines in the Region of the Eastern Foothills of the Ningxia Helan Mountains in Northwest China

Foods. 2023 Jun 23;12(13):2472. doi: 10.3390/foods12132472.

Authors

Fei He^{1

2}, Meng-Bo Tian^{1

2}, Wei-Peng Duan^{3

4

5}, Wei-Ming Yang⁶, Xue Mao⁶, Jun Wang^{1

2}, Chang-Qing Duan^{1

2}

Affiliations

¹ Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
² Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China.
³ Department of Grape and Wine Engineering, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China.
⁴ Gansu Key Laboratory of Viticulture and Enology, Lanzhou 730070, China.
⁵ E&D Center of Wine Industry in Gansu Province, Lanzhou 730070, China.
⁶ Chateau Zhihui Yuanshi, Yinchuan 750026, China.

Abstract

This two-consecutive-year study aimed to evaluate the effects of ground management methods on the volatomics of 'Cabernet Sauvignon' grapes and wines in Northwest China, in which inner-row crop covering with purslane (GRASS) and mulching with black plastic film (FILM) treatments were carried out, respectively. Compared with clean tillage (CK), the GRASS and FILM treatments changed the microclimates of grapevine fruit zones and rhizospheres, which delayed the ripening of grape berries and affected the accumulation of aroma substances in the mature grapes effectively. GRASS increased the concentration of terpenes and C₁₃-norisoprenoids in berries and gave more floral, fruity, and caramel fragrances to wines, while FILM had the opposite effect of significantly increasing the synthesis of C₆/C₉ compounds and brought more green leaf flavors, showing that inner-row purslane covering is a potential and stable viticultural practice to improve the wine quality in this booming wine region.

Keywords: aroma compounds; crop covering; grape; mulching; wine.

Abstract

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