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The Indian Journal of Genetics and Plant Breeding
Year : 1989, Volume : 49, Issue : 2
First page : ( 183) Last page : ( 190)
Print ISSN : 0019-5200.

Induced Mutations in Triticale: Frequency and Spectrum of Chlorophyll Mutations

Reddy V. R. K.*, Gupta P. K.

Department of Agricultural, Botany Meerut University, Meerut, 250005

*Department of Botany, Bharathiar University, Coimbatore, 641046.

Received:  4  January,  1988; Accepted:  4  August,  1988.

Abstract

Mutations were induced in four hexaploid triticale varieties (Beagle, Coorong, TL 419 and Welsh) by gamma rays (10, 20, and 30 kR) and EMS (0.5%; 8, 12, 16 h). Ten different kinds of monogenic chlorophyll mutants, including two new types– redina and white-virescens– were observed in M2 and M3 generations. Mutation frequency increased with increase in mutagenic dose. The chemical EMS produced high frequency of mutations in comparison to gamma rays.

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Keywords

Hexaploid triticale, chlorophyll mutants, frequency and spectrum of mutations.

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