Effects of rain-shelter cultivation on development and aromatic component of ‘Gold Finger' grape

Abstract: 【Objective】In order to provide a theoretical basis for the guidance of grape rain-shelter cultivation,the berry quality under rain-shelter cultivation was observed in this research.【Methods】Six-year-old‘Golden finger'grapevine was used to study the berry quality including berry length,berry width,berry weight,soluble solids,total acidity,skin coloring indexes and aromatic component.【Results】The results showed that under the rain-shelter cultivation condition,the rapid increase period of berry weight delayed about one week,total acid content decreased obviously;CIRG of the skin coloring indexes was 1.23,which was significantly less than that of control 1.25;Aldehydes were the main components of aromatic compounds,and 3-Hexenal was detected only in rain-shelter treatment; The relative content of 2-Hexenal was the highest among aldehydes,which increased by 17.52% compared with control;But the berry length,width and soluble solids content did not show significant difference between the treatment and control.【Conclusion】Skin coloring indexes and aromatic component of the berry changed under rain-shelter cultivation.