Summary
Detailed pathological investigations on twelve pathogenic species ofPhyllosticta responsible for leaf-spot diseases were undertaken. Pycnidia of different organisms that developed over the leaves were viable for a sufficiently long time and they were capable of initiating the infection in the subsequent rainy season. The percentage of infected leaves increased during February–March. Availability of moisture to the inoculum was essential for initiating the infection during May and June. The pycnidia recovered from the plant debris and soil were also quite effective. The conidial viability of a particular pathogen varied on different hosts.
The author is grateful to Professor R. N. Tandon, Ph.D. (London), F.A.Sc., for the valuable suggestions and encouragement.
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References
Tandon, R. N. and Bilgrami, K. S. “Effect of some nitrogen compounds on the growth and sporulation ofPhyllosticta cycadina,”Proc. natl. Acad. Sci., 1954,24, 191–96.
——, Sisodia, U. S. and Bilgrami, K. S. “Pathological studies ofPestalotia mangiferae,”Proc. Ind. Acad. Sci., 1955,42 B, 219–25.
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Communicated by Dr. R. N. Tandon,f.a.sc.
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Bilgrami, K.S. Pathological investigations on some leaf-spot causing species ofPhyllosticta . Proc. Indian Acad. Sci. 58, 165–175 (1963). https://doi.org/10.1007/BF03051949
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DOI: https://doi.org/10.1007/BF03051949