山葡萄14C 同化产物分配规律的研究

 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。

Studies on the Distribution of 14C Assimilation Products in Vitis amurensis Rupr.

Biennial and potted‘Shuangyou’wild grape ( Vitis amurensis Rupr. ) cultivar was used for the trial material and its distribution of assimilation products was studied by ¹⁴C tracing technique. The results showed that the ¹⁴C assimilation products were mainly distributed to the leaves fromflowering to fruit-coloration stage , the export distribution rate of leaves was 76.69 % - 45.09 %. During fruit ripeness the ¹⁴C assimilation products were mainly distributed to the fruit and the export distribution rate of fruit was 47.39 %. It shows that the leave have higher competition ability to absorb assimilation products than fruit during most growth and development stages. The fruit-coloration stage was key stage of assimilation products transition from leaves to fruit . The fruit ssimilation products distribution rate was higher during fruit growth than that of during flowering and fruit ripening stages.