Indian Journal of Science and Technology

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Radiation-induced Two Oil Rich Mutants in Sesame (Sesamum indicum L.)


Affiliations
1 Dept. of Botany, Genetics & Plant Breeding Section, Univ. of Kalyani, Kalyani – 741235, India
2 Dept. of Botany, Narasinha Dutt College, Howrah – 711101, West Bengal, India
 

Radiation (X-ray and gamma rays ) induced two productive oil rich 'plant type' mutants of sesame (Sesamum indicum L., var - B-67, family: Pedaliaceae) namely lax branching (angle of divergence 30.50° to 32.35° of primary branches in relation to main axis; control: 19.60° - 22.75°) and small flower (length: mutant - 2.83 cm ± 0.14, control - 4.0 cm ± 0.01, breadth: mutant 1.53 ± 0.03, control - 1.83cm ± 0.03) were cytogenetically (meiosis more or less alike to control, 2n= 26; mutant traits were monogenic recessive to normal) and qualitatively assessed (seed yield and fatty oil contents were significantly higher in the mutants than parental cultivar but protein contents were lower; yield related traits namely total branches per plant, capsule on main axis and capsule length and plant height enhanced in small flower and lax branching mutants respectively than control) at M4 (rain fed kharif season). Lax branching and control plant types were given in multilocational trial (four districts - North 24 Parganas, Burdwan, Birbhum and Nadia of West Bengal) to assess seed yield and seed oil and protein contents, and the results obtained were discussed.

Keywords

Sesame, Macromutants, Oil Rich, Seed Yield, Protein Content, Multilocational Trial
User

  • Chowdhury S (2009) Radiation Induced Mutagenesis In Sesame (Sesamum indicum L.). Ph.D thesis. University of Kalyani, pp, 31.

  • Chowdhury S and Datta AK (2008) Radiation induced macromutation in sesame (Sesamum indicum L.). J. Phytol. Res. 21, 181-185.

  • Chowdhury S, Datta AK and Maity S (2009) Cytogenetical and agronomical aspects of radiation induced marker trait mutants in sesame (Sesamum indicum L.). Indian J. Sci. Technol. 2 (5,6), 58-61. Domain site:http://www.indjst.org.


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  • Radiation-induced Two Oil Rich Mutants in Sesame (Sesamum indicum L.)

Abstract Views: 310  |  PDF Views: 96

Authors

Sandipan Chowdhury
Dept. of Botany, Genetics & Plant Breeding Section, Univ. of Kalyani, Kalyani – 741235, India
Animesh K. Datta
Dept. of Botany, Genetics & Plant Breeding Section, Univ. of Kalyani, Kalyani – 741235, India
Aditi Saha
Dept. of Botany, Narasinha Dutt College, Howrah – 711101, West Bengal, India
Susmita Maity
Dept. of Botany, Genetics & Plant Breeding Section, Univ. of Kalyani, Kalyani – 741235, India

Abstract


Radiation (X-ray and gamma rays ) induced two productive oil rich 'plant type' mutants of sesame (Sesamum indicum L., var - B-67, family: Pedaliaceae) namely lax branching (angle of divergence 30.50° to 32.35° of primary branches in relation to main axis; control: 19.60° - 22.75°) and small flower (length: mutant - 2.83 cm ± 0.14, control - 4.0 cm ± 0.01, breadth: mutant 1.53 ± 0.03, control - 1.83cm ± 0.03) were cytogenetically (meiosis more or less alike to control, 2n= 26; mutant traits were monogenic recessive to normal) and qualitatively assessed (seed yield and fatty oil contents were significantly higher in the mutants than parental cultivar but protein contents were lower; yield related traits namely total branches per plant, capsule on main axis and capsule length and plant height enhanced in small flower and lax branching mutants respectively than control) at M4 (rain fed kharif season). Lax branching and control plant types were given in multilocational trial (four districts - North 24 Parganas, Burdwan, Birbhum and Nadia of West Bengal) to assess seed yield and seed oil and protein contents, and the results obtained were discussed.

Keywords


Sesame, Macromutants, Oil Rich, Seed Yield, Protein Content, Multilocational Trial

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DOI: https://doi.org/10.17485/ijst%2F2009%2Fv2i7%2F29497