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以2年生盆栽山葡萄‘双优’品种为试材,利用14C示踪技术对同化产物的分配特点进行了研究。结果表明:山葡萄14C同化产物从开花期至果实着色期以叶片为分配中心,输出分配率为76.69%～45.09%;成熟期的同化产物分配以果实为中心,输出分配率为47.39%,说明山葡萄在大部分生育期叶片对同化产物较果实有更强的竞争优势。果实着色期是山葡萄同化产物分配转换的关键时期。果实膨大期形成的同化产物积累在果实中的比例高于开花期和成熟期。
With 2-year-old potted grape variety ’Shuangyou’ as tested materials, 14C tracing technique was used to study the distribution characteristics of assimilation products. The results showed that the distribution of 14C assimilation products from the grapevine stage to the fruit coloration stage took the leaves as the distribution center, the output distribution rate was 76.69% ~ 45.09%; the distribution of assimilation products at maturity stage was fruit and the output distribution rate was 47.39% In most of the growth stages of the leaves on the assimilation products more fruit than the competitive advantage. The fruit coloring period is the key period for the conversion of the assimilation product of the mountain grape. The percentage of assimilates formed during fruit enlargement was higher than that during flowering and maturity.