We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Comparison and analysis of the nutritional organ structure and photosynthetic characters in cress and celery.
- Authors
JIA Xiaoling; YU Xurun; WANG Feng; LI Yan; JIANG Qian; XIONG Aisheng
- Abstract
Cress('Nanjingbaguazhoushuiqin')and celery('Liuhehuangxinqin')were selected to compare their structure of nutritional organ and photosynthetic characters under different light intensity· The results showed that root vascular bundles of cress were more sophisticated than those of celery· The structure of petiole in cress was hollow with big cavum medullare, while the structure was compact in celery without cavum medullare· There were more xylem cells, better developed phloem cells and vascular bundles in celery than in cress· The net photosynthetic rate(Pn ), stomatal conductance(Gs ), intercellular CO2 concentration(Ci ) and transpiration rate (Tr)of celery were 1·45, 1·81, 1·49 and 1·69 times more than those of cress at 90 μmol·m-2·s-1 light intensity, and were 1·77, 1· 61, 1·71 and 1·46 times more than those of cress at 270 μmol·m-2·s-1 light intensity, respectively· Under certain light intensity, Pn of cress and celery was positively correlated with Gs and Tr, and negatively correlated with Ci· Pn of celery was higher than that of cress. The results proved that photosynthetic characters of the cress and celery were related with vascular bundles, phloem and xylem of blade.
- Publication
Journal of Nanjing Agricultural University / Nanjuing Nongye Daxue Xuebao, 2014, Vol 37, Issue 2, p21
- ISSN
1000-2030
- Publication type
Article
- DOI
10.7685/j.issn.1000-2030.2014.02.004