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Studies on the pycnidial formation by macrophomina phaseoli (Maubl.) ashby size of pycnidia, ostiole and pycnidiospores and its significance

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Summary

Studies on the size of pycnidia, ostiole, length and width of pycnidiospores and ratio between length and width of pycnidiospores ofM. phaseoli isolates from cotton, castor, sesame and groundnut, the pycnidia of which were obtained by artificial inoculation on the hosts and also in culture medium of one cotton isolate, revealed that all the isolates were true to the type species and that the isolates had significant differences among them for these characters. The measurements of pycnidia and spores were dependant on the substratum for their production, and as such should preferably be made when these structures are obtained on the host of the isolate. Delimitation ofM. phaseoli on basis of these measurements from other hosts of the isolates is considered unwarranted or invalid.

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Author notes

  1. B. C. Patil

    Present address: Wheat Rust Mycologist, Mahabaleshwar, India

Authors and Affiliations

  1. Plant Pathological Laboratory, College of Agriculture, Poona-5, India

    N. B. Kulkarni & B. C. Patil

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  1. N. B. Kulkarni
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  2. B. C. Patil
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Kulkarni, N.B., Patil, B.C. Studies on the pycnidial formation by macrophomina phaseoli (Maubl.) ashby size of pycnidia, ostiole and pycnidiospores and its significance. Mycopathologia et Mycologia Applicata 36, 311–321 (1968). https://doi.org/10.1007/BF02050378

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