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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 (2020)
[Effective from January 1, 2020]
For more details click here

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

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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.2017.6(7): 2716-2728
DOI: https://doi.org/10.20546/ijcmas.2017.607.381


Evaluation of Experimental Hybrids for Powdery Mildew Tolerance in Sunflower (Helianthus annuus L.)
P.G. Suresha1, Vikas V. Kulkarni2, S.M. Supriya1, and M.R. Govindappa2
1Department of Genetics and Plant Breeding, College of Agriculture, Raichur, Karnataka, India
2AICRP on sunflower, MARS, University of Agricultural Sciences, Raichur -584 104, Karnataka, India
*Corresponding author
Abstract:

Powdery mildew caused by Golovinomyces cichoracearum (DC.) V.P. Heluta (formerly Erysiphe cichoracearum) is a common foliar disease on senescing leaves of cultivated sunflower in warmer regions of the world. In India, the powdery mildew disease is becoming major constraint in cultivation of sunflower crop especially during post rainy season. Screening of the sunflower germplasm lines against the disease would be of a great help to identify the resistance source. However, the development of resistant cultivars becomes very important if the crop is to expand into warmer regions where the disease may cause economic losses. Fifty six sunflower hybrids along with one susceptible check Morden were screened under artificial greenhouse conditions during the rabi season of 2013-14 by spraying spore suspension culture at 30 and 45 days after sowing. None of the hybrids screened were immune. However, 31 hybrids were found moderately resistant with less than 25% PDI while 25 hybrids registered susceptible reaction. The rate of apparent infection (r) in hybrids revealed a wide variation among the different hybrids at different intervals. The DMRT (Duncan’s multiple Range Test) ranks were assigned to each genotypes based on ‘r’ value. The DMRT ranking categorized 57 sunflower genotypes into seven groups.


Keywords: Sunflower, Powdery mildew, Artificial screening.
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How to cite this article:

Suresha, P.G., Vikas V. Kulkarni, S.M. Supriya, and Govindappa, M.R. 2017. Evaluation of Experimental Hybrids for Powdery Mildew Tolerance in Sunflower (Helianthus annuus L.).Int.J.Curr.Microbiol.App.Sci. 6(7): 2716-2728. doi: https://doi.org/10.20546/ijcmas.2017.607.381