| Comparative analysis of photosynthetic characteristics of three grapevine cultivars grown in Yangling |
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| DOI：10.7606/j.issn.1000-7601.2009.05.37 |
| Key Words: grape leaf position photosynthesis |
| Author Name | Affiliation | | FANG Lin | College of Enology Northwest A ＆F University, Yangling, Shaanxi 712100, China | | ZHANG Zhenwen | College of Enology Northwest A ＆F University, Yangling, Shaanxi 712100, China；Research Center for Vit-i Viniculture of Shaanxi Province, Yangling, Shaanxi 712100, China | | JIA Yuanyuan | College of Life Sciences Northwest A ＆F University, Yangling, Shaanxi 712100, China | | LI Chen | College of Enology Northwest A ＆F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| Study on the photosynthetic characteristics of different grapevine cultivars at different period was conducted in Yangling by Li-6400 portable photo synthesis system to provide theoretical basis for their scientific planting.The results show as the following: ① The net photosynthetic rate (Pn) of the leaf in second position is higher than secondary shoot in the berry expanding stage, and is lower than secondary shoot in the turning-color period and maturity period while the leaf in tenth position is always higher than the secondary shoot in different period;② The Pn of canopy at different periods: the top is higher than the root;③ The Pn of different grapevine cultivars is in the order of: Blue French>Ugni Blanc>Muscat Blanc. |
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