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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(4): 2638-2644
DOI: https://doi.org/10.20546/ijcmas.2020.904.315


Evaluation of Tomato Germplasm against Early Blight under Epiphytotic Conditions
Suresh Reddy Yerasu1*, K. Nagendran1, Shailesh Kumar Tiwari1,Chithra Devi Padey2 and Sushil Pandey2
1 ICAR-Indian Institute of Vegetable Research, Varanasi-221305, India
2ICAR- National Bureau of Plant Genetic Resources, New Delhi-110012, India
*Corresponding author
Abstract:

Tomato is one of the most extensively cultivated vegetables and is a rich source of nutrients such as vitamins, antioxidants and minerals for a balanced human diet. World over, early blight (EB) caused by Alternaria solani Sorauer is limiting tomato production and causes great losses. In total, 350 tomato genotypes from ICAR-National Bureau of Plant Genetic Resources (ICAR-NBPGR), New Delhi were evaluated for early blight resistance under epiphytotic conditions at ICAR-Indian Institute of Vegetable Research (ICAR-IIVR), Varanasi. Augmented design with five released varieties as checks was the experimental design followed. EC705445 gave highly resistant (HR) reaction with 0.86 percent disease index (PDI). EC0027336, EC0114504 and EC0027932 gave resistance (R) reaction. Another fourteen genotypes gave moderately resistance (MR) reaction. Seven genotypes (EC705445, EC0013112, EC0026104, EC699717, EC695040, EC000586 and EC0111086) that gave either HR or R or MR reaction under field conditions were further screened for the disease reaction under artificial conditions and none of the genotypes shown either HR or R or MR reaction.


Keywords: Plant genetic resources, Early blight, PDI, Augmented design, Disease resistance
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How to cite this article:

Suresh Reddy Yerasu, K. Nagendran, Shailesh Kumar Tiwari, Chithra Devi Padey and Sushil Pandey. 2020. Evaluation of Tomato Germplasm against Early Blight under Epiphytotic Conditions.Int.J.Curr.Microbiol.App.Sci. 9(4): 2638-2644. doi: https://doi.org/10.20546/ijcmas.2020.904.315