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Vol. 7, Issue 6 (2018)

In vitro Studies of carbon, Nitrogen sources and pH on mycelia growth Blackgram Root rot caused by Macrophomina phaseolina

Author(s):
Priyadharshini Bhupathi and M Theradimani
Abstract:
Blackgram, also known as urdbean, mash, black maple etc. an important short-duration pulse crop grown in many parts of India. Blackgram is subjected to different biotic constraints, root rot being the serious one. The root rot pathogen Macrophomina phaseolina was isolated from the diseased stems and roots of blackgram collected from seven different places of Tamil Nadu. Among the seven isolates screened, K2m7 collected from Kallipatti in Namakkal district was identified as a virulent culture. The virulent culture K2m7 was used in all experiment in the subsequent study. The pH 7.0 was found to favour maximum mycelial growth of pathogen irrespective of the isolates. Among different carbon sources tested in both solid media and liquid broth, glucose was identified as best carbon source for maximum mycelia growth and mycelia dry weight (7.50 cm and 7.20 g) respectively. Among different nitrogen sources tested both in solid media and liquid broth, peptone was identified as best nitrogen source for maximum mycelia growth and mycelia dry weight (7.47 cm and 7.77 g).
Pages: 33-35  |  247 Views  19 Downloads
How to cite this article:
Priyadharshini Bhupathi and M Theradimani. In vitro Studies of carbon, Nitrogen sources and pH on mycelia growth Blackgram Root rot caused by Macrophomina phaseolina. 2018; 7(6): 33-35.
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