African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12495

Full Length Research Paper

Temperature requirement of different isolates of Colletotrichum gloeosporioides isolated from mango

C. G. Sangeetha1* and R. D. Rawal2
  1Department of Biotechnology, Center for Post Graduate Studies, Sri Bhagawan Mahaveer Jain College, Jayanagar, Bangalore-560011. 2Division of Plant Pathology, IIHR, Hessarghatta, Bangalore-560086.
Email: [email protected]

  •  Accepted: 08 May 2009
  •  Published: 24 May 2010

Abstract

 

Anthracnose caused by Colletotrichum gloeosporioides (Penz.) Penz. and Sacc. is one of the most important diseases of mango. During survey, the disease samples of fruits affected by anthracnose were collected from Arambakam, Dapoli, Hassan, Hessarghatta, Lucknow, Raichur, Tiruvur and Tumkur, and isolations were made. Studies were conducted to find out the temperature requirement of different isolates by incubating them at 15, 20, 25 28 and 30°C. The study indicated that the temperature of 25°C was found to be good for the growth of Aramkabam, Lucknow and Tiruvur isolates. Maximum growth of Dapoli, Hessarghatta and Tumkur isolates were recorded at 28°C whereas 30°C supported good growth of Hassan and Raichur isolates, nine days after inoculation. As regards to sporulation, Dapoli, Hessarghatta and Raichur isolates were good at 28°C whereas, 25°C supported good sporulation of Lucknow and Tiruvur isolates. Hassan and Tumkur isolates showed moderate sporulation at 28°C and 25°C supported moderate sporulation of Arambakam.

 

Key words: Colletotrichum, anthracnose, sporulation.