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Induction and analysis of gamma ray-induced flower head shape mutation in'Lalima'chrysanthemum (Chrysanthemum morifolium)

Indian Agricultural Research Journals

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Title Induction and analysis of gamma ray-induced flower head shape mutation in'Lalima'chrysanthemum (Chrysanthemum morifolium)
 
Creator BANERJI, B K
DATTA, S K
 
Subject Gamma rays, Chrysanthemum, Chlorophyll variegation, Mutation
 
Description An experiment was conducted during the rainy season of 1998 to study the effects of gamma irradiation in 'Lalima' Chrysanthemum (Chrysanthemum morifolium L.) with particular reference to induction of somatic mutation. The rooted cuttings were irradiated with 0, 15,20 and 25 Gy of gamma rays. Reduction in survival, growth, plant height, number of branches and leaves/plant and leaf and flower size and increased morphological, floral and chromosomal abnormalities were recorded after irradiation. Mutation in flower head shape were detected from 25 Gy treatment in M,V, and M,V 2 generation and established in pure form. Comparative cytomorphological and anatomical analysis of original and mutant was carried out to understand the nature of mutation. Significant reduction in plant height, flower head diameter and guard cell width were recorded after irradiation, however no change in chromosome number was recorded in the mutant. Gamma ray-induced flower head shape mutant of 'Lalima' was found very attractive and ideal for pot culture.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2014-05-12
 
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/40534
 
Source The Indian Journal of Agricultural Sciences; Vol 72, No 1 (2002)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/40534/18164
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences