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Effect of soil and foliar application of micronutrients and fungicides on late blight (Phytophthora infestans) and tuber yield of potato (Solanum tuberosum)

Indian Agricultural Research Journals

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Title Effect of soil and foliar application of micronutrients and fungicides on late blight (Phytophthora infestans) and tuber yield of potato (Solanum tuberosum)
 
Creator Trehan, S P
Sharma, K K
Grewal, G S
 
Subject —
 
Description A field experiment was conducted during the winter season of 1991-92 and 1992-93 to study the effect of micro nutrients (Zn,Cu, Mo and Mn) and fungicides (metalaxyl + mancozeb (Ridomil MZ 72 wp) and mancozeb (Dithane M-45)] on the development oflate blight [Phytophthora infestans (Mont.) de Bary) and tuber yield of 'Kufri Chandramukhi' potato (Solanum tuberosum L.).The effectiveness of micro nutrients was more at low disease incidence and was at par with metalaxyl + mancozeb. Foliarsprays of micronutrients (Zn, Cu, Zn + Cu + Mo) proved effective in reducing late blight (65.4- 92.6%) and increasing tuberyield (36.3-45.9%). However, in blight-epidemic year the micronutrients (Zn + Cu + Mo + Mn) and mancozeb gave the significantcontrol (42.5 and 31.2% respectively) of late blight, but were less effective than systemic fungicide metalaxyl + mancozeb(95.7%). Soil application of micronutrients did not show effect on the development of late blight and tuber yield.Late-blight infection in harvested tubers was positively correlated with its intensity on foliage.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-06-06
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19124
 
Source The Indian Journal of Agricultural Sciences; Vol 65, No 11 (1995)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/19124/9467
 
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