Relationship between photosynthesis and leaf ages of grapevine under enhanced ultraviolet-B radiation
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DOI:10.7606/j.issn.1000-7601.2007.04.42
Key Words: Ultraviolet-B radiation  grapevine  leaf ages  photosynthesis
Author NameAffiliation
ZHOU Xin-ming College of Enology, Northwest A &F University, Yangling, Shaanxi 712100, China 
XI Zhu-mei College of Enology, Northwest A &F University, Yangling, Shaanxi 712100, China 
JIAO Xu-liang College of Enology, Northwest A &F University, Yangling, Shaanxi 712100, China 
ZHANG Zhen-wen College of Enology, Northwest A &F University, Yangling, Shaanxi 712100, China 
WU Lu-yang Shaanxi university of science and technology, Xi'an, Shaanxi 710000, China 
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Abstract:
      Under natural sunlight conditions, the relationship between photosynthesis and leaf ages of grapevine(Cabernet Sauvignon) under enhanced ultraviolet-B radiation was studied. The results showed that: Under the treatments of enhanced lower UV-B radiation, the photosynthesis of grapevine obviously increased with leaf ages, and under the treatments of enhanced higher UV-B radiation, the grapevine photosynthesis decreased, but it was not significant compared to that of the control. It suggested that the grapevine have strong adaptability to UV-B radiation, and appropriate enhanced UV-B radiation could increase the photosynthesis of grapevine leaves.