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Position: Home > Articles > Study on Related Mechanisms of Growth Potential Differences in Grape Cultivars Northern Horticulture 2015 (2) 1-5

葡萄品种生长势差异的相关机制研究

作  者：
张永福;任禛;莫丽玲;董翠莲;韩丽;吴锦香
单  位：
昆明学院农学院
关键词：
葡萄;生长势;横切结构;生理特征;机制
摘  要：
以6个生长势各异的葡萄品种为试材,采用石蜡切片法,观察了各品种的叶片横切结构,并分别测定了6份供试材料叶片各生理指标的差异,以揭示葡萄品种生长势差异的相关机制。结果表明:各供试材料的叶片横切结构及生理指标均表现出一定的差异。其中,弱生长势品种"维拉莎"和"京秀"新梢生长速率慢、生物量积累少;在叶片横切结构上这2个品种表现出中脉厚度小、叶脉突起度小、栅栏组织与海绵组织的比值大等特征,且与强生长势品种之间的差异达到显著性水平,符合弱生长势品种的解剖学特征;此外,"维拉莎"和"京秀"的叶片可溶性糖含量、淀粉含量、游离脯氨酸含量和过氧化物酶(POD)活性均显著高于其它品种,而净光合速率和蒸腾速率则显著低于其它品种,这些也符合弱生长势品种的生理特征。
译  名：
Study on Related Mechanisms of Growth Potential Differences in Grape Cultivars
作  者：
ZHANG Yong-fu;REN Zhen;MO Li-ling;DONG Cui-lian;HAN Li;WU Jin-xiang;School of Agriculture,Kunming University;
关键词：
grape;;growth potential;;transaction structure;;physiological characteristics;;mechanisms
摘  要：
Taking six grapes with different growth potential as materials,leaf anatomical structures among them were observed by paraffin,and the differences were measured for the physiological indexes of leaf with six test materials,in order to reveal related mechanisms of growth potential differences in grape cultivars.The results showed that leaf transection structures,the indexes of physiological and biochemical among six accessions had significant differences.Among them,the weak growth potential cultivars(‘Weilasha'and‘Jingxiu')showed slower growth of new shoots and less biomass accumulation.In leaf transection structures,the two cultivars showed small midvein thickness and vein protuberant degree,high the ratio of palisade tissue/spongy tissue.With strong growth potential differences between cultivars reached significant levels,and the traits could explain its dwarfing character.In addition,leaf soluble sugar content,starch content,free proline content and POD activity of‘Weilasha'and‘Jingxiu'were significantly higher than other cultivars,whereas net photosynthetic rate and transpiration rate were significantly lower than other cultivars,which were also in line with the cultivars of weak growth potential physiological characteristics.

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