International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:9, September, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(9): 2993-2998

Effect of Different Physiological Parameters on the Growth of Alternaria cucumerina var. cyamopsidis (Rang. and Rao)
Suresh Kumar1, Ashok Kumar Meena1 and Prabhu Narayan Meena1,2*
1College of Agriculture, Department of Plant Pathology, Swami Keshwanand Rajasthan Agricultural University, Bikaner- 334 006, Rajasthan, India
2ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore,
*Corresponding author

Clusterbean [Cyamopsis tetragonoloba (L.) Taub], is a drought resilient leguminous crop grown on sandy soils of arid and semi-arid regions. Clusterbean is infected by several fungal, bacterial and viral diseases but Alternaria blight disease caused by Alternaria cucumerina var. cyamopsidis (Rang. and Rao) considered as one of the most devastating diseases in the guar growing areas of Rajasthan. The main aim of this study was to know the effect of different carbon sources, various nitrogen sources, different range of temperatures and pH on the biochemical and physical dynamics with Czapex’sdox agar basal medium under in vitro conditions against Alternaria cucumerina var. cyamopsidis. Maximum mycelial growth was observed on glucose (85.00 mm) followed by maltose (61.66 mm), dextrose (59.66) as compared to sucrose used as control (89.66 mm). Similarly, maximum mycelial growth was observed by applying potassium nitrate (78.00 mm) as nitrogen source. In case of temperature, maximum mycelial growth (88.66 mm) was observed at 30oC followed by (34.00 mm) minimum mycelial growth at 20oC. Among all the tested over a wide range of pH 5.0 to 9.0, maximum mycelial growth (89.33 mm) was observed at pH 6.0 and minimum mycelial growth (37.33 mm) at pH 9.0 respectively.

Keywords: Alternaria cucumerina var. cyamopsidis (Rang. and Rao), Carbon sources, Nitrogen sources, Temperatures and pH and Czapex’sdox agar

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Suresh Kumar, Ashok Kumar Meena and Prabhu Narayan Meena. 2018. Effect of Different Physiological Parameters on the Growth of Alternaria cucumerina var. cyamopsidis (Rang. and Rao).Int.J.Curr.Microbiol.App.Sci. 7(9): 2993-2998. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.