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研究了CPPU和GA_3对广西桂林避雨栽培‘温克’葡萄二次果果粒大小及果实品质的影响。结果表明,CPPU和GA_3处理可不同程度增大二次果果粒纵横径、单粒重,提高果实固酸比、可溶性固形物含量、还原糖含量,显著降低可滴定酸含量,同时也会造成穗梗、果柄和果蒂增粗等现象。综合各项指标,在广西桂林地区,‘温克’二次果膨大以果粒直径12~14 mm时采用25 mg/L GA_3浸泡果穗3~5 s,效果最佳。
The effects of CPPU and GA_3 on the fruit size and the fruit quality of ’Wenke’ grapes in shelter-for-rain cultivation in Guilin, Guangxi were studied. The results showed that CPPU and GA_3 treatment could increase the secondary and longitudinal fruit size, diameter and diameter, single grain weight, increase the ratio of solid-acid ratio, soluble solid content, reducing sugar content and the content of titratable acid, Ear stems, stalks and fruit peduncle thickening phenomenon. According to the various indexes, in the Guangxi Guilin area, the temperature of the second fruit of ’Winker’ was swollen and the fruit was soaked with 25 mg / L GA_3 for 3 ~ 5 s with the diameter of 12 ~ 14 mm, the effect was the best.