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Salt sensitivity in chickpea (Cicer arietinum L.): ions in reproductive tissues and yield components in contrasting genotypes

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Relation http://oar.icrisat.org/8899/
http://dx.doi.org/10.1111/pce.12506
10.1111/pce.12506
 
Title Salt sensitivity in chickpea (Cicer arietinum L.): ions in reproductive tissues and yield components in contrasting genotypes
 
Creator Kotula, L
Khan, H A
Quealy, J
Turner, N C
Vadez, V
Siddique, K H
Clode, P L
Colmer, T D
 
Subject Chickpea
 
Description The reproductive phase in chickpea (Cicer arietinum L.) is affected by salinity, but little is known about the underlying cause. We investigated whether high concentrations of Na(+) and Cl(-) in the reproductive structures influence reproductive processes. Chickpea genotypes contrasting in tolerance were subjected to 0, 35 or 50 mm NaCl applied to soil in pots. Flower production and abortion, pod number, percentage of empty pods, seed number and size were evaluated. The concentrations of Na(+) , K(+) and Cl(-) were measured in various plant tissues and, using X-ray microanalysis, in specific cells of developing reproductive structures. Genotypic variation in reproductive success measured as seed yield in saline conditions was associated with better maintenance of flower production and higher numbers of filled pods (and thus seed number), whereas seed size decreased in all genotypes. Despite the variation in reproductive success, the accumulation of Na(+) and Cl(-) in the early reproductive tissues of developing pods did not differ between a tolerant (Genesis836) and a sensitive (Rupali) genotype. Similarly, salinity tolerance was not associated with the accumulation of salt ions in leaves at the time of reproduction or in seeds at maturity.
 
Publisher John Wiley & Sons Ltd
 
Date 2015-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8899/1/54fd05170cf20700c5e9ed77.pdf
Kotula, L and Khan, H A and Quealy, J and Turner, N C and Vadez, V and Siddique, K H and Clode, P L and Colmer, T D (2015) Salt sensitivity in chickpea (Cicer arietinum L.): ions in reproductive tissues and yield components in contrasting genotypes. Plant, Cell & Environment, 38 (8). pp. 1565-1577. ISSN 0140-7791