Indian Society of Genetics & Plant Breeding

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INDUCED MUTATIONS IN CHICKPEA (CICER ARIETINUM L.) III. FREQUENCY AND SPECTRUM OF VIABLE MUTATIONS

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A comparative study of frequency and spectrum of chlorophyll mutations induced by
two physical (gamma rays and fast neutrons) and two chemical mutagens (NMU and
EMS) in relation to the effects in Ml plants and induction of mutations in M2 was
made in four chickpea (Cicer arietinum 1.) varieties, two desi (G 130 and H 214) one
kabuli (C 104) and one green seeded (L 345). The treatments included three doses each
of gamma rays (400, 500 & 600 Gy) and fast neutrons (5, 10 & 15 Gy) and two
concentrations with two different durations of two chemical mutagens, NMU [0.01%
(20h), and 0.02% (8h)] and EMS [0.1% (20h) & 0.2% (8h)]. Chemical mutagens were
more efficient than physical in inducing viable and total number of mutations. Among
the chemical mutagens NMU was the most potent, while among the physical mutagens,
gamma rays were more effective. Green seeded var.· L 345 was most responsive for
mutations while the kabuli var. C 104 was least suitable. Major differences in the
mutagenic response of the four cultivars were observed. The desi varietiies were more
resistant towards mutagenic treatment than kabuli and green seeded type.
 

Keywords: Chickpea, Cicer arietinum, viable mutations, frequency and spectrum, mutagens, radiation

Info

Year: 1999
Volume: 59
Issue: 4
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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