Record Details

Salt sensitivity of the vegetative and reproductive stages in chickpea (Cicer arietinum L.): Podding is a particularly sensitive stage

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/9/
http://dx.doi.org/10.1016/j.envexpbot.2010.12.014
 
Title Salt sensitivity of the vegetative and reproductive stages in chickpea (Cicer arietinum L.): Podding is a particularly sensitive stage
 
Creator Samineni, S
Siddique, K H M
Gaur, P M
Colmer, T D
 
Subject Chickpea
 
Description Soil salinity is an increasing problem, including in regions of the world where chickpea is cultivated. Salt
sensitivity of chickpea was evaluated at both the vegetative and reproductive phase. Root-zone salinity
treatments of 0, 20, 40 and 60mM NaCl in aerated nutrient solution were applied to seedlings or to
older plants at the time of flower bud initiation. Even the reputedly tolerant cultivar JG11 was sensitive
to salinity. Plants exposed to 60mM NaCl since seedlings, died by 52 d without producing any pods; at
40mM NaCl plants died by 75 d with few pods formed; and at 20mM NaCl plants had 78–82% dry mass
of controls, with slightly higher flower numbers but 33% less pods. Shoot Cl exceeded shoot Na by 2–5
times in both the vegetative and reproductive phase, and these ions also entered the flowers. Conversion
of flowers into pods was sensitive to NaCl. Pollen from salinized plants was viable, but addition of 40mM
NaCl to an in vitro medium severely reduced pollen germination and tube growth. Plants recovered
when NaCl was removed at flower bud initiation, adding new vegetative growth and forming flowers,
pods and seeds. Our results demonstrate that chickpea is sensitive to salinity at both the vegetative
and reproductive phase, with pod formation being particularly sensitive. Thus, future evaluations of salt
tolerance in chickpea need to be conducted at both the vegetative and reproductive stages.
 
Publisher Elsevier
 
Date 2011
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/9/1/samineni2011.pdf
Samineni, S and Siddique, K H M and Gaur, P M and Colmer, T D (2011) Salt sensitivity of the vegetative and reproductive stages in chickpea (Cicer arietinum L.): Podding is a particularly sensitive stage. Environmental and Experimental Botany, 71. pp. 260-268. ISSN 0098-8472