广州避雨栽培条件下13个鲜食葡萄品种综合评价OA

Thirteen introduced table grape varieties including Zitain,Jingmi,and Jingyan,were comprehensively evaluated in Guangzhou in order to understand their adaptability and screen out suitable varieties for development in south China.The tested varieties were 2-year-old vines grafted on Beta rootstock and trained on a V shaped trellis.The phenological stage,growth vigor,flowering and bearing habit,berry quality and disease resistance were investigated.The results showed that Zitian,Jingmi,and Jingyan had smaller s one-year-old trunk diameters than that of other varieties.Leaf drop in winter was the slowest in Shine Muscat,but the fastest in Queen Nina,followed by Summer Black and Jinggui.Summer Black,Jinggui and Jingxiangyu showed strong flowering and bearing performance,enabling relatively easy two cropping per year,while Queen Nina and Yuhou had the poorest fruit bearing performance.Sensory evaluation results showed that Shine Muscat had the highest score,followed by Summer Black.Tengyu,Summer Black and Zitian had strong disease resistance.Jingui and Zhuijinxiang were highly susceptible to powdery mildew,while Jingmi,Jingyan,Jingxiangyu,Tianqing and Yuhou were prone to gray mildew and fruit cracking.According to principle component analysis,Shine Muscat,Summer Black and Tengyu ranked top in comprehensive score.