Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810092050
Authors: Thakur, Garima
Advisor: Paul, Satish
Title: STUDIES ON MUTAGENIC EFFECTIVENESS AND EFFICIENCY OF ETHYL METHANE SULPHONATE (EMS) MUTAGEN IN LINSEED (Linum usitatissimum L.)
Publisher: CSKHPKV, Palampur
Language: en
Type: Thesis
Pages: 84p.
Agrotags: null
Keywords: Linseed
Abstract: The present investigation entitled, “Studies on mutagenic effectiveness and efficiency of ethyl methane sulphonate (EMS) mutagen in linseed (Linum usitatissimum L.) was undertaken to assess the mutagenic effects of mutagen EMS. The experimental material comprised of two linseed varieties viz., Him Alsi-2 and Kangra Local, seeds of which were treated with eight (0.10%, 0.20%, 0.30%, 0.40%, 0.50%, 0.60%, 0.70%, 0.80%) different concentrations of EMS to generate M1 generation. On the basis of survival percentage in M1 generation under lab conditions the LD50 dose for both varieties was estimated i.e. 0.70 per cent for Him Alsi -2 and 0.60 per cent for Kangra Local. Plants harvested from only three concentrations (one higher and one lower dose to LD50) in M1 were carried forward to M2 generation. Data were recorded for various qualitative and quantitative traits along with reaction to diseases viz., powdery mildew and rust on individual plant basis. Mutagen EMS was effective and efficient in producing chlorophyll mutations and viable macromutations in M2 generation. EMS was also found effective in producing variability in range and mean values for different quantitative characters for which significant differences were obtained in both positive and negative direction. The EMS concentrations showing maximum effectiveness and efficiency in both varieties were different indicating varietal sensitivity towards the mutagen. The most effective dose for producing chlorophyll mutations between both varieties was 0.60 per cent and the most efficient was 0.50 per cent. For viable as well as total macromutations most effective concentration recorded was 0.70 per cent and 0.60 per cent as the most efficient. The dose found effective was not necessarily found efficient in producing mutations in both varieties.
Subject: Genetics and Plant Breeding
Theme: Efficiency of ethyl methane sulphonate (EMS) mutagen in linseed
These Type: M.Sc
Issue Date: 2018-07-24
Appears in Collections:Theses

Files in This Item:
File Description SizeFormat 
GARIMA THAKUR MSc PLANT BREEDING 2018.pdf2.2 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.