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Articles by Shahzad Ahmed
Total Records ( 1 ) for Shahzad Ahmed
  Lubna Masoodi , Ali Anwar , Shahzad Ahmed and T.A. Sofi
  Chilli is an important cash crop and India is the largest grower, consumer and exporter of dry chillies and other products to over 90 countries around the world. This crop suffers heavy losses in yield due to many diseases especially dieback and fruit rot diseases the frequent epiphytotics of the diseases in the Kashmir valley. During the past few years and extend of damage infelicated necessitated us to generate basic information on the important aspects like status, variability, hostrang and integrated management of the disease. Thus, the present study was undertaken to know the behavior of the disease and biology of the pathogen so as to device better managemental practices of the diseases to avoid losses. The objectives of the study were carried out as per the latest methodologies adopted by various workers in the world. Pathogenic behavior of twenty isolates of C. capsici, developed from fruits of chilli, was established following Koch’s Postulates. Colonies varied in their cultural behavior ranging from cottony to fluffy, mostly suppressed with regular to irregular margins. Colour of colonies ranged between white to grey. Growth rate of isolates was between 32.0-67.5 mm. Morphological studies of isolates revealed variations in their colour, size, shape, acervuli production, setae size and shape, conidia. Average conidial size varied from 2.23-33.6 μm and average setae size varied from 4.48-177.21 μm. On the basis of disease reaction expressed by differential hosts, ten groups (races) of C. capsici were identified. The group 1 comprised of isolates Cc-1, Cc-15 whereas group 2 included the isolate Cc-2, Cc-6, Cc-16. The Cc-3, Cc-10 were included in group-3 whereas group-4 included the isolate Cc-18, Cc-20, Cc-12, Cc-9. The group 5 comprised of isolates Cc-13, Cc-14. The group 6 comprised of Cc-17, Cc-19. The group 7 comprised of isolates Cc-5, Cc-11. Similarly, the isolate Cc-7 was clubbed under group 8.
 
 
 
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