Effect of Media Composition on Vegetative and Reproductive Growth of Alternaria Brassicicola and Bipolaris Sorokiniana

Nur-E-Nasreen, M Bahadur Meah, Farzana Haque Tumpa, Muhammed Ali Hossain^*

Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh, Bangladesh.

Corresponding author Email: alihossain.ppath@bau.edu.bd

DOI : http://dx.doi.org/10.12944/CARJ.5.3.02

Abstract:

Experiments were conducted to evaluate the effect of some culture media on the vegetative and reproductive growth of Alternaria brassicicola and Bipolaris sorokiniana. Twenty one (21) treatment combinations each with three replications were employed. Potato Dextrose Agar (PDA) was used as the basic growth medium in this study.  Supplementation with different plant extracts with this medium produced differential growth and sporulation of the tested fungi. PDA media supplemented with mustard leaf extract showed significantly highest vegetative growth (7.8 cm) and PDA with the combination of mustard leaf, tomato fruit, carrot fruit and cabbage leaf extracts showed the highest sporulation (11×10⁵ spores/ml) of A. brassicicola. In case of B. sorokiniana, the highest vegetative growth (7.4 cm) and highest sporulation (45×10⁴ spores/ml) were obtained by the supplementation of mustard and wheat leaf extracts respectively. Plant extract supplementation proved better than PDA as growth medium of A. brassicicola and B. sorokiniana.

Keywords:

Alternaria brassicicola and Bipolaris sorokiniana; Media composition; Reproductive growth; Vegetative growth

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