Revista Europea de Biología Experimental Acceso abierto

Abstracto

In vitro evaluation of chemicals and plant extracts against colony growth of Xanthomonas axonopodis pv. malvacearum causing bacterial blight of cotton

Muhammad Sajid, Abdul Rashid, Muhammad Ehetisham-ul-haq, Muhammad Talha Javed, Humera Jamil, Muhammad Mudassir, Muhammad Farooq, Faqir Ahmad, Muhammad Latif, Munir Ahmad Chohan, Masood Ahmad and Ali Kamran

Cotton (Gossypium hirsutum L.) occupies a significant place in cash crops of Pakistan. Bacterial blight is the most destructive disease of cotton. Three chemicals (Plant Protector, Agrimycine and Copper oxy Chloride) and plant extracts (Citrullus colocynthis, Nicotiana tobaccum and Curcuma Lunga) were evaluated in vitro by using inhibition zone technique against colony growth of Xanthomonas axonopodis pv. malvacearum. Plant Protector was found most effective at 600ppm after 72 hours of treatment. In chemicals inhibition zone area increased with increasing dose and time. No relation was seen among plant extracts in colony growth inhibition of bacteria with respect to time and concentrations. Tobacco’s extract (Nicotiana tobaccum) was most significant at 10% concentration. Treatments means were compared by Tukey’s HSD test.