|Table of Contents|

Comparative Study on Photosynthetic Characteristics of Different Rehmannia glutinosa Germplasm Resources

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年05
Page:
115-120
Research Field:
Publishing date:

Info

Title:
Comparative Study on Photosynthetic Characteristics of Different Rehmannia glutinosa Germplasm Resources
Author(s):
WU TingjuanTIAN MengpingDONG ChengmingXIE Xiaolong
(College of Pharmacy,Henan University of Chinese Medicine,Zhengzhou,Henan 450046)
Keywords:
Rehmannia glutinosa L.germplasm resourcesphotosynthesisdiurnal dynamicscorrelation
PACS:
-
DOI:
10.11937/bfyy.20191985
Abstract:
10 varieties of Rehmannia glutinosa L. were uesd as materials,from 06:00 to 18:00,the net photosynthetic rate (Pn),transpiration rate (Tr),stomatal conductance (Gs) and intercellular CO2 concentration (Ci) of Rehmanniae glutinosa L.leaves were measured every 2 hours using a portable photosynthesis apparatus,the diurnal dynamics of photosynthesis based on 10 varieties of Rehmannia glutinosa L. were studied,in order to provide scientific basis for optimizing Rehmannia glutinosa L. germplasm resources.The results showed that the diurnal dynamics of net photosynthetic rate of 10 varieties of Rehmannia glutinosa L. had obvious phenomenon of lunch break.Different varieties showed different trends in daily dynamics of Ci,Gs,and Tr.The results of correlation analysis between Pn and Tr,Gs,Ci,RH,PAR showed that the Pn had a significant negative correlation with Ci (except for ‘Xiaoheiying’) and a significant positive correlation with PAR and Tr (except for ‘9302’),respectively.The comprehensive analysis showed that the net photosynthetic rate of ‘Jinjiu’,‘Hongshuwang’ and ‘Xiaoheiying’ was higher than other cultivations could be promoted as a high quality seed source.The net photosynthetic rate of ‘83fuyu’ and ‘9302’ was low and it was not recommended to promote.

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Last Update: 2020-04-29