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Removal of tenacious glumes enhances the seed germination and seedling vigour in eight Aegilops species for efficient conservation in genebank

Indian Agricultural Research Journals

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Title Removal of tenacious glumes enhances the seed germination and seedling vigour in eight Aegilops species for efficient conservation in genebank
 
Creator SRINIVASAN, K
RADHAMANI, J
KALKANDE, T
TYAGI, R K
 
Subject Aegilops, Conservation, Dormancy, Germination, Wheat, Wild species
 
Description Wild species, which are potentially valuable sources of resistance, play a very prominent role as donors of stressresistant genes in crop improvement programmes. Thus, their conservation in the form of seeds in the genebanks is ofparamount importance for their availability in breeding programmes. High initial seed quality is one of the important prerequisites for long-term conservation in genebanks which is measured in terms of seed germination and vigour. Aegilops species exhibit inherent problems caused by erratic and staggered germination due to dormancy imposed by presence of tenacious glumes. Objective of this study was to evaluate the effects of removal of glume to assess the initial seed germination and seedling vigour of eight wild species of wheat before their long-term storage in genebank. Germination in seeds with glume was recorded as 20-70% and in seeds without glume was 72-100%. It is concluded that tenacious glumes contribute to the physical dormancy and removal of glumes increased the germination and seedling vigour in all eight species namely Ae. bicornis, Ae. geniculata, Ae. kotschyi, Ae. longissima, Ae. triuncialis, Ae. umbellulata,, Ae. vavilovii, and Ae. ventricosa. We recommend that the genebank curators can follow this method to assess the initial seed viability, which is pre-requisite, for long-term conservation of valuable donor Aegilops species in genebank.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-04-09
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/28852
 
Source The Indian Journal of Agricultural Sciences; Vol 83, No 4 (2013)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/28852/13051
 
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