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The extent of variation in salinity tolerance of the minicore collection of finger millet (Eleusine coracana L. Gaertn.) germplasm

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Relation http://oar.icrisat.org/8198/
http://dx.doi.org/10.1016/j.plantsci.2014.07.001
 
Title The extent of variation in salinity tolerance of the minicore collection of finger millet (Eleusine coracana L. Gaertn.) germplasm
 
Creator Krishnamurthy, L
Upadhyaya, H D
Purushothaman, R
Gowda, C L L
Kashiwagi, J
Dwivedi, S L
Singh, Sube
Vadez, V
 
Subject Finger Millet
 
Description Finger millet (Eleusine coracana L. Gaertn.) ranks third in production among the dry land cereals. It is widely cultivated in Africa and South Asia where soil salinization is a major production constraint. It is a potential crop for salt affected soils. To identify salt tolerant germplasm, the minicore finger millet germplasm (n = 80) was screened for grain yield performance in a soil saturated with NaCl solution of 100 or 125 mM. Genotype effect was significant for most traits, while salinity × genotype interaction was significant only in one year. Salinity delayed phenology, marginally reduced shoot biomass and grain yield. There was a large range of genotypic variation in grain yield under salinity and other traits. The yield loss was higher in accessions with prolific growth and yield potential was associated with saline yields. Based on saline yields, accessions were grouped in to four groups and the top tolerant group had 22 accessions with IE 4797 remaining at the top. Salinity had no adverse impact on grain yield of five accessions. Root anatomy in selected genotype of pearl and finger millet showed presence of porous cortex and well fortified endodermis in finger millet that can exclude Na+ and enhance N absorption.
 
Publisher Elsevier
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8198/1/krishnamurthy2014.pdf
Krishnamurthy, L and Upadhyaya, H D and Purushothaman, R and Gowda, C L L and Kashiwagi, J and Dwivedi, S L and Singh, Sube and Vadez, V (2014) The extent of variation in salinity tolerance of the minicore collection of finger millet (Eleusine coracana L. Gaertn.) germplasm. Plant Science, 227. pp. 51-59. ISSN 0168-9452