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Development of ascochyta blight (Ascochyta rabiei) in chickpea as affected by host resistance and plant age

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Relation http://oar.icrisat.org/4841/
http://dx.doi.org/10.1007/s10658-007-9123-y
 
Title Development of ascochyta blight (Ascochyta rabiei) in chickpea as affected by host resistance and plant age
 
Creator Basandrai, A K
Basandrai, D
Thakur, S K
Thakur, H L
Pande, S
Sharma, M
 
Subject Chickpea
 
Description Ascochyta blight caused by Ascochyta
rabiei, is the most destructive disease in many
chickpea growing countries. Disease development
varies with the growth stage and host resistance.
Hence, disease development was studied in cvs
ICCX 810800 (resistant), ICCV 90201 (moderately
resistant), C 235 (moderately susceptible), ICCV
96029 and Pb 7 (susceptible) under controlled
environment (ICRISAT, Patencheru) and field conditions
(Dhaulakuan, Himachal Pradesh) at seedling,
post-seedling, vegetative, flowering and podding
stages. Under controlled environment, the incubation
period and terminal disease reaction (TDR) did not
vary significantly at different growth stages against
virulent isolate AB 4. Cultivars ICCX 810800,
ICCV 90201 and C 235 showed a significantly
longer incubation period than the susceptible cv. Pb
7. Cultivar ICCX 810800 showed slow disease
progress and the least TDR. Field experiments were
conducted during the 2003–2004 and 2004–2005
growing seasons. During 2003–2004, TDR was
higher in plants inoculated at podding and the
flowering stage and the lowest disease reaction was
recorded in ICCX 810800. A severe epidemic
during 2004–2005 was attributed to the favourable
temperature, humidity and well distributed high
rainfall. TDR did not differ significantly at any of
the growth stages in susceptible cvs ICCV 96029
and Pb 7. With respect to seeding date and cultivar,
the highest yield was recorded in the early-sown
crop (1,276.7 kg ha�1) and in ICCV 90201
(1,799.3 kg ha�1), respectively. The yields were
greatly reduced in all the cultivars during 2004–
2005 and the highest yield was recorded in ICCX
810800 (524.7 kg ha�1). Integrated disease management
using resistant cultivars, optimum sowing
period and foliar application of fungicides will
improve chickpea production. The experiment under
controlled environment and field conditions (during
the epidemic year) showed a similar disease development.
 
Publisher Springer
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4841/1/Development%20of%20ascochyta%20blight%20%28Ascochyta%20rabiei%29%20in%20chickpea%20as%20affected%20by%20host%20resistance%20and%20plant%20age.pdf
Basandrai, A K and Basandrai, D and Thakur, S K and Thakur, H L and Pande, S and Sharma, M (2007) Development of ascochyta blight (Ascochyta rabiei) in chickpea as affected by host resistance and plant age. European Journal of Plant Pathology, 119 (1). pp. 77-86. ISSN 0929-1873