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Role of nutrients and lower leaf removal against Alternaria blight in Indian mustard (Brassica juncea L.)

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Title Role of nutrients and lower leaf removal against Alternaria blight in Indian mustard (Brassica juncea L.)
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Creator Meena, P.D., Asha Rani, M.C. Meena, P. Sharma, B. Kandpal, and D. Singh
 
Subject Alternaria blight, Indian mustard, lower leaf removal, nutrient application
 
Description Not Available
Alternaria Blight (AB) caused by Alternaria brassicae and A. brassicicola is a
major constraint in rapeseed-mustard production in India. An experiment was
conducted during 2009-10 and 2010-11 to study the effect of nutrients and lower
leaf removal in Indian mustard (Brassica juncea L.) on AB disease. Results
indicated that maximum AB reduction (26%) was observed by soil application
of Potash at 40 kg haG1+Zinc sulphate at 25 kg haG1+Copper sulphate at
40 kg haG1+Sulphur at 10 kg haG1+Ridomil-MZ 72 as foliar spray at 0.25% was
better when applied as foliar spray (21%). However, three lower leaves removal at
40 Days After Sowing (DAS) with Foliar Spray (FS) of Ridomil MZ- 72 at 0.25
also reduced the disease (19%) as similar with leaf removal (18.9%) alone in
combination with no treatment. Soil application of K+ZnSO4+CuSO4+S+leaf
removal+FS of mancozeb+carbendazim and lower leaf removal at 40 DAS+FS of
ridomil altogether reduced the maximum disease severity (37.9%). A linear
equation was found between Zn, Cu, S and K with R2 = 0.55, 0.38, 0.15 and 0.59,
respectively, during 2009-10 and R2 = 0.52, 0.30, 0.27 and 0.51, respectively during
2010-11 showed decrease in AB severity with increase of nutrient content in leaves.
Data revealed that leaf removal at 40 DAS vis-a-vis use of nutrients along with
fungicidal foliar spray reduced the AB of Indian mustard. Because the use of
nutrients take part in induced tolerance and lower leaf removal keep away from the
reach of inoculum to the plants, both plays a key role to minimize disease severity
in Indian mustard resulted higher seed yield and there adoption could be economic
and eco-friendly to the farmers.
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Date 2018-10-30T10:10:38Z
2018-10-30T10:10:38Z
2015-06-20
 
Type Journal
 
Identifier Meena, P.D., Asha Rani, M.C. Meena, P. Sharma, B. Kandpal, and D. Singh. 2015. Role of nutrients and lower leaf removal against Alternaria blight in Indian mustard (Brassica juncea L.). Plant Pathology Journal 14 (2): 92-96. DOI: 10.3923/ppj.2015.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/8691
 
Language English
 
Relation Not Available;
 
Publisher Asian Network for Scientific Information