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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(6): 1595-1598
DOI: https://doi.org/10.20546/ijcmas.2017.606.187


First Report of Powdery Mildew Caused by Golovinomyces cichoracearum Dahlia (Dahlia variabilis) from Himachal Pradesh (India)
Kishor Sharma, Shalini Verma*, H. R. Gautam and Anil Handa
Department of Plant Pathology, Dr. Y S Parmar University of Horticulture and Forestry,Nauni -173230, Solan, Himachal Pradesh, India
*Corresponding author
Abstract:

Powdery mildew disease appeared for the first time in field-grown Dahlia (Dahlia variabilis) in Himachal Pradesh, India. With the advancement of the disease, the infected plants withered and died. In order to investigate the causal organism of this symptom disease, fungus was morphologically studied. The fungus showed conidiophore with85-118 X 6-10µm in size, composed of subcylindrical foot cell with a single constriction at the base, and 2-4 immature conidia in chains formed in basipetal succession. Conidia that were hyaline, barrel-shaped or ellipsoid or doliform, borne in chains of three to four and without distinct fibrosin bodies measuring 29-52µm X 14-19µm.The germination of conidia occurred terminally or sub terminally with moderately 43+8µm long germ tubes and swollen appressorium. The sexual morph (chasmothecia) of this powdery mildew was not found. These morphological characteristics confirmed the identification of powdery mildew causal organism as the anamorph of Golovinomyces cichoracearum (DC.) V.P. Heluta (syn. Erysiphe cichoracearum DC). This is the first report on the occurrence of powdery mildew on Dahlia (D. variabilis) caused by G. cichoracearum in Himachal Pradesh, India.


Keywords: Powdery mildew, Golovinomyces cichoracearum,Dahlia variabilis.
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How to cite this article:

Kishor Sharma, Shalini Verma, H.R. Gautam and Anil Handa. 2017. First Report of Powdery Mildew Caused by Golovinomyces cichoracearum Dahlia (Dahlia variabilis) from Himachal Pradesh (India).Int.J.Curr.Microbiol.App.Sci. 6(6): 1595-1598. doi: https://doi.org/10.20546/ijcmas.2017.606.187