Asian Journal of Bio Science

T. Nagaveni ¹, I. K. Kalappanavar ¹

Affiliations
1 Department of Pathology, University of Agricultural Sciences, Dharwad-580 005 (Karnataka), IN

Abstract

Molecular diversity was assessed using two leaf blight resistant and two susceptible genotypes in barley. Out of 25 RAPD primers used, 20 primers produced polymorphism. Similarity coefficients ranged from 0.65 (PL-760 and RD- 2508) to 0.78 (PL-760 and DWR-28) among genotypes. The primers OPA-05, OPM-06, and OPB-11 produced 100 per cent polymorphism. Clustering pattern clearly differentiated resistant (DWR-28 and PL-760) and susceptible genotypes (RD-2508 and RD-2653).

Keywords

Genetic Diversity, Leaf Blight Resistance, Barley.

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T. Nagaveni ¹, I. K. Kalappanavar ¹

Affiliations
1 Department of Plant Pathology, University of Agricultural Sciences, Dharwad-580 005 (Karnataka), IN

Abstract

Overall the resistant genotypes of barley recorded higher amount of total phenol, total protein, sugars, chlorophyll content as compared to genotypes susceptible to leaf blight disease. The amount of these biochemical components increased from 30 days after sowing (DAS) to 60 days after sowing (DAS). However, healthy counterparts of plant samples recorded higher biochemical content (total phenol, total protein, sugars, chlorophyll content) as compared to inoculated counterparts at both the stages. The study revealed that higher sugars, phenols, proteins, chlorophyll contents are some of the possible reasons for resistance to leaf blight disease in barley.

Keywords

Resistance, Leaf Blight Barley.

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