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Study on Related Mechanisms of Growth Potential Differences in Grape Cultivars(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年02
Page:
1-5
Research Field:
Publishing date:

Info

Title:
Study on Related Mechanisms of Growth Potential Differences in Grape Cultivars
Author(s):
ZHANG Yong-fu; REN Zhen; MO Li-ling; DONG Cui-lian; HAN Li; WU Jin-xiang
(School of Agriculture，Kunming University，Kunming，Yunnan 650214)
Keywords:
Keywords:grape; growth potential; transaction structure; physiological characteristics; mechanisms
PACS:
-
DOI:
10.11937/bfyy.201502001
Abstract:
Abstract: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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Last Update: 2015-02-22