Screening of mango cultivars against important post harvest diseases in Andhra Pradesh.
Reddy T. N., Chaturvedi A., Babu J. D.
Author Affiliation: AICRP on Post Harvest Technology of Horticultural Crops, Agricultural Research Institute, Rajendranagar, Hyderabad - 500 030, India.
Journal of Research ANGRAU 33 : 71-73
Abstract : An experiment was conducted to screen 10 cultivars of mango (Neeleshan, Dasheri mahmooda, AU Rumani, Totapuri, Swarnarekha, Vikarabad mahmooda, Baneshan, Cherukurasam, Dasheri and Manjeera) in Andhra Pradesh, India, to determine the source of resistance to anthracnose (Colletotrichum gloeosporioides [Glomerella cingulata]) and stem end rot diseases (Botryodiplodia theobromae). Mango fruits were harvested, surface-sterilized, inoculated with seven-day-old cultures of Colletotrichum gloeosporioides and Botryodiplodia theobromae, kept in polythene bags for 48 h, transferred to boxes and incubated at 30±2°C. Among the cultivars, Dasheri mahmooda, Neeleshan, Baneshan and Totapuri showed comparatively lower anthracnose intensity (mean intensity=10.0-23.9%). AU Rumani, Cherukurasam and Vikarabad mahmooda had the highest mean percent disease indices (PDI, 84.6-92.0%). For stem end rot, the mean PDI was lowest in Dasheri mahmooda (12.3%), Neeleshan (24.4%), Baneshan (29.4%) and Totapuri (30.0%). AU Rumani, Cherukurasam and Vikarabad mahmooda had the highest mean PDI for stem end rot.