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TECHNIQUE FOR ESTABLISHING PATHOGENIC BEHAVIOUR OF PHYTOPHTHORA COLOCASIAE (RAC.) CAUSING LEAF BLIGHT OF COLOCASIA

Article Id: ARCC654 | Page : 259 - 262
Citation :- TECHNIQUE FOR ESTABLISHING PATHOGENIC BEHAVIOUR OF PHYTOPHTHORA COLOCASIAE (RAC.) CAUSING LEAF BLIGHT OF COLOCASIA.Agricultural Science Digest.2012.(32):259 - 262
N.P. Dohroo, Meenu Gupta* and Biri Singh Attar meenuguptal@gmail.com
Address : Department of Vegetable Scinece, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni-173 230, India

Abstract

A new technique was devised for establishing pathogenic behavior of Phytophthora colocasiae on detached plant parts of colocasia in the laboratory as well as in pot culture. Results showed that incubation period was shorter in inoculated leaves ( 23.39 days) and stalks (108.70 days) and was highest in corms (220.20 days) under laboratory conditions. In pot culture study, the incubation period was shorter on new leaves, stalks and corms in comparison to older leaves, stalks and corms.

Keywords

Colocasia blight Phytophthora colocasiae Pathogenic behaviour.

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