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Relative tolerance of photosystem II in spike, leaf, and stem of bread and durum wheat under desiccation

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Title Relative tolerance of photosystem II in spike, leaf, and stem of bread and durum wheat under desiccation
Not Available
 
Creator Not Available
J. RANE, D. SHARMA, S. EKATPURE, L. AHER, M. KUMAR, S.V.S. PRASAD, A.N. NANKAR, and N.P. SINGH
 
Subject Plant physiology
 
Description Not Available
In dryland regions, soil moisture stress often leads to desiccation and causes injury to photosynthetic machinery. Recently, chlorophyll fluorescence (ChlF)-based assessment of photosynthetic efficiency under drought stress is gaining attention due to advances in instrument development and methodology optimisation. Our study was designed to explore the use of spike photosynthetic efficiency as a trait to differentiate drought responses in wheat. Bread and durum wheat were assessed
for spike, stem, and leaf tissue photosynthetic efficiency in response to progressive desiccation using ChlF imaging. Results showed that durum wheat had higher quantum efficiency and lower photoinhibition of PSII relative to bread wheat across spike, stem, and leaf. Rate of decline in maximum photochemical efficiency of PSII with increased desiccation was seen higher in bread wheat spikes as compared to durum wheat. Our investigation clearly demonstrated that ChlF imaging could be effectively deployed as phenotyping tool to differentiate wheat genotypes for their photosynthetic performance under desiccation
ICAR
 
Date 2019-12-09T09:29:28Z
2019-12-09T09:29:28Z
2019-07-11
 
Type Research Paper
 
Identifier Not Available
1573-9058
http://krishi.icar.gov.in/jspui/handle/123456789/28863
 
Language English
 
Relation Not Available;
 
Publisher Institute of Experimental Botany, Academy of Sciences of the Czech Republic