Early rosette mutant plants of safflower (Carthamus tinctorious L.)
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Early rosette mutant plants of safflower (Carthamus tinctorious L.)
Authors
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RAJEEV SHRIVASTAVA
Department of Genetics and Plant Breeding, College of Agriculture, IGKV, Raipur-492 012
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S MONDAL
Department of Genetics and Plant Breeding, College of Agriculture, IGKV, Raipur-492 012
Keywords:
Early maturity, Mutation, Rosette stage, Safflower, Short duration lineAbstract
Many high yielding safflower varieties with maturity duration of 140-145 days or more have rosette period
ranging from 22-40 days. It was thought to convert high yielding varieties of safflower in to less rosette period
genotypes, without reducing yield and oil content. For this if hybridization were applied it affects many other important traits. Therefore, in high yielding varieties/genotypes radiation were applied to create variation and genotypes with reduced rosette period. The mutants with less rosette period as compare to normal genotypes were selected in M2 generation and tested for their stability in M3 generation. In present study in A-1 and other genotypes, mutants were obtained having 15-20days less rosette than normal genotypes.
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References
Kotcha A, Wongyai W, Wongpiyasatid A and Pongtongkam P 2007. Gamma radiation induced genetic variability in M2
population of safflower. In: Proceedings of 45th Kasetsart University Annual Conference. Bangkok, Thailand.
Rampure N H, Choudhary A D, Jambulkar S J and Badere R S 2017. Isolation of desirable mutants in safflower for crop DOI: https://doi.org/10.5958/0975-6906.2017.00018.9
improvement. Indian Journal of Genetics, 77(1): 134-144.
