International Journal of Plant Sciences

Vanishree ¹, R. Lokesha ², Renuka Goudappagoudar ², Chetankumar N. Banakar ²

Affiliations
1 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru, Karnataka, IN
2 Department of Genetics and Plant Breeding, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, IN

Abstract

One hundred and twenty four F₄ families of sesame derived from straight and reciprocal crosses made between E-8 (commercial cultivar) and Tamil Nadu Local (land race) were evaluated during Kharif, 2010 to assess genetic variability, heritability (broad sense) and genetic advance for ten quantitative characters. Analysis of variance revealed highly significant difference among the F₄ families for days to 50 per cent flowering, days to maturity, plant height, number of branches per plant, number of capsules per plant, distance from ground to first capsule and number of seeds per capsule. High GCV and PCV were observed for branches per plant, capsules per plant and seed yield per plant. High heritability coupled with high genetic advance as per cent mean was observed for plant height, branches per plant, capsules per plant, capsule length, distance from ground to first capsule, seeds per capsule, 1000 seed weight and seed yield per plant.

Keywords

Sesame, F₄ Families, Genetic Variability, Heritability, Genetic Advance

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Renuka Goudappagoudar ¹, R. Lokesha ¹, Vanishree ²

Affiliations
1 Department of Genetics and Plant Breeding, College of Agriculture, University of Agricultural Sciences, Raichur, Karnataka, IN
2 Department of Genetics and Plant Breeding, University of Agricultural Sciences, G.K.V.K., Bengaluru, Karnataka, IN

Abstract

In order to study inheritance of alternaria blight resistance in sesame, straight and reciprocal crosses were made between RT-273 (resistant) and Gulbarga local black (susceptible) during Kharif-2007. Screening of F₂ and F₃ progenies against Alternaria blight, and segregation analysis showed that resistance is governed by single dominant gene. Further screening of F₄ families under field condition during Kharif-2010 confirmed the single dominant gene governing the Alternaria blight resistance in cultivated sesame.

Keywords

Sesame, F₄ Families, Alternaria Blight Resistance, Dominant Gene

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