INTERACTION OF COLLETOTRICHUM CAPSICI IN CHILLI VARIETY

  • SAKET KUMAR 1* , VINAY KUMAR 1 AND VINEETA SINGH 2 INTERACTION OF COLLETOTRICHUM CAPSICI IN CHILLI VARIETY SAKET KUMAR 1* , VINAY KUMAR 1 AND VINEETA SINGH 2 1 DEPT. OF GENETICS AND PLANT BREEDING, 2 DEPT. OF MYCOLOGY AND PLANT PATHOLOGY INSTITUTE OF AGRICULTURAL SCIENCES, BHU, VARANASI -221005 (UP), INDIA. Corresponding author’s e-mail: saketjntradelink@gmail.com
Keywords: Chilli, Anthracnose, Colletotrichum Capsici, Disease Severity, CD.

Abstract

ABSTRACT:
Twelve  isolates  of  Colletotrichum  capsici  from  various  places  were
characterized into three groups based on morphological characters and growth
rate. Different isolates (Cc1,Cc4,Cc6, Cc7, Cc8, Cc10 and Cc12) are present in
middle  virulence  (II  group),  isolates  (Cc3,Cc5  and  Cc9)  are  present  in  low
virulence  (III  group)  and  isolate  Cc2,Cc11  is  present  in  High  virulence  (I
group).  The  effect  of  Colletotrichum  capsiciwas  tested  onfive  chilli  varieties
for their disease interactions. The results revealed that these isolates could be
differentiated in  disease  severity.  The degree of  disease severity as a size of
necrotic symptom was different on each tested variety and varied from 0.47 to
2.68.The  mean  value  of  12  isolates  is  varied  from  1.67  to  4.01mm/lesion
diameter  while  mean  value  of  five  variety  is  varied  from  0.47  to  2.71
mm/lesion diameter and CD of five variety is 0.0 – 2.21 mm/lesion diameter.
These  varieties  show  7.38  mm  critical  variance  in  five  varieties.In  twelve
isolates the lesion diameter is varied from 3.09 to 21.01.
KEY  WORDS:  Chilli,  Anthracnose,  Colletotrichum  Capsici,  Disease
Severity, CD.

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