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| MENG,Jiang-Fei; YU,Yong; SHI,Tian-Ci; FU,Yu-Shi; ZHAO,Ting; ZHANG,Zhen-Wen. |
| Abstract A comprehensive investigation was conducted to determine the effects of exogenous melatonin treatment of pre-veraison grapes on phenolic components and antioxidants of grape berries and wine. The results showed an increase in the concentration of cyanin-3-O-glucoside, peonidin derivatives, and two flavanols [namely (+)-catechins and (−)-epicatechins] of grapes, as well as flavonols in both grapes and wine due to the application of melatonin. These compounds are derivatives of the catalysate of flavonoid 3’-hydroxylase (F3’H) in the flavonoid synthesis pathway of plants. It can be inferred that melatonin increased the activity of F3’H or expression of VvF3’H during grape berry maturation. In addition, two melatonin treatments of pre-veraison grape... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Melatonin; Grape; Wine; Phenolics; Antioxidant activity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000100035 |
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| MENG,Jiang-Fei; SHI,Tian-Ci; YU,Yong; ZUO,Li-Li; FU,Yu-Shi; WANG,Qin; ZHANG,Zhen-Wen. |
| Abstract Rain-shelter cultivation has been proven an important cultivation method for grape-plantings in continental monsoon climate zones, of which white plastic films are the most common shelter material. However, while this method and material reduces the occurrence of the disease, it can also decrease the grape berry quality. Five colours (including red, yellow, blue, purple, and white) of plastic films were covered above Cabernet Sauvignon (Vitis vinifera L.) grapevine rows before veraison. Rain-shelter cultivation reduced air temperature, wind speed, and total solar radiation and enhanced relative humidity in the fruit sphere of grapevines. For each particular colour plastic film, the irradiance of its corresponding spectrum band in the canopy of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fruit sphere microclimate; Grape quality; Light quality; Plastic films colour; Rain-shelter system. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612017000400585 |
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