Phacidiopycnis padwickii. [Descriptions of Fungi and Bacteria].
Abstract A description is provided for Phacidiopycnis padwickii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Cicer arietinum (chick pea or gram). DISEASE: Collar rot, foot rot, wilt or blight of chick pea or gram (Cicer arietinum). Symptoms are drying up of plants from the tip downwards, the leaves becoming pale green to yellowish and finally drop off. The collar turns brown and sometimes roots and rootless may also be involved. GEOGRAPHICAL DISTRIBUTION: India: Bihar; Delhi; Haryana (Karnal); Madhya Pradesh (Gwalior); Punjab (Gurdaspur, Ludhiyana); Rajasthan (Alwar, Bayana, Bharatpur, Chaksu, Dasu, Rajakhera); Uttar Pradesh (Gorakphur). CMI Map. 514, ed. 1, 1976. TRANSMISSION: By inoculation trials it has been found that severe infection and death occurs in 14-81% of different chick pea varieties grown from seeds sown in soil heavily infested with P. padwickii (Kheswalla, 1941). Immersion of seeds in a suspension of conidia yielded only a small proportion of infected seedlings. The fungus has been reported to survive from May to October both in sterilized and unsterilized soil, farmyard manure, crop debris either exposed or buried up to 15 cm (57, 3715).