Author:
SH Joshi ,J Purohit ,Anirudha Chattopadhyay ,Bhavesh M Joshi
Abstract
The bacterial blight caused by Xanthomonas axonopodis pv. cyamopsidis is the most widespread and destructive disease of clusterbean. The present study aimed to survey the major clusterbean growing areas, expanding in five districts i.e., Banaskantha, Patan, Sabarkantha, Mehsana and Aravali of North Gujarat. The study found that bacterial blight disease is prevalent in Idar, Ambaji, Danta, Sanali, Khedbramha, Shamalaji, Patan, Bhiloda, Visnagar, Deesa and Amirgadh. The highest mean disease incidence (28.44%) was recorded in Idar, Sabarkantha. Based on the gram straining it was observed that the test bacterium was gram-negative and rod-shaped. Further, the biochemical tests, such as starch hydrolysis, gelatin liquefaction, hydrogen sulphide production, catalase, and acid production from different sugars viz., sucrose, maltose, and dextrose showed a positive reaction, except, acid production from mannitol was negative. Based on the morphological, biochemical, and pathogenic characteristics, the pathogen was identified as Xanthomonas axonopodis pv. cyamopsidis.
Publisher
The Indian Society of Agronomy
Reference27 articles.
1. Bagri RK, Goyal SK, Singh J and Shekhawat SS. 2019. Management of bacterial leaf blight disease of cluster bean in semi-arid tropic of Rajasthan. Plant Disease Research 34(1): 58-60.
2. Bhatt RK, Jukanti AK and Roy MM. 2017. Cluster bean [Cyamopsis tetragonoloba (L.) Taub.] an important industrial arid legume: A review. Legume Research 40(2): 207-214.
3. Chakravarth CN, Krishnapp M and Thippeswamv B. 2005. Isolation and characterization of Xanthomonas axonopodis pv. cyamopsidis in cluster bean (Cyamopsis tetragonoloba (L.) Taub). Asian Journal Microbiology Biotechnology and Environment Science 7(2): 197-200.
4. Choudhary RS, Yadav RS and Amin A. 2014. Productivity and economics of cluster bean (Cyamopsis tetragonoloba) as influenced by phosphorus fertilization and biofertilizers in western Rajasthan. Annals Agricultural Research 35: 62-64.
5. Dhaka A, Singh H and Shailza 2019. Growth and instability of cluster bean in Bhilwara district of Rajasthan. Agricultural Science Digest-A Research Journal 39(3): 194-195.