IJCRAR is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCRAR Articles.

Abstract                 Volume:4  Issue-10  Year-2016          Original Research Articles


Online ISSN : 2347 - 3215
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcret@gmail.com

Detection and Seed Transmission of  Alternaria  porri  in Niger
O.Nagaraja1* and M. Krishnappa2
1Research Scholar, Department of PG, Studies and Research in Applied Botany, Kuvempu University, Jnana Shyadri, Shankaraghatta-577451, Shivamogga, Karnataka India
2Professor, Department of PG, Studies and Research in Applied Botany, Kuvempu University, Jnana Shyadri, Shankaraghatta-577451, Shivamogga, Karnataka India
*Corresponding author
Abstract:

Niger is commonly called “birdseed”. It is important minor, edible, traditional oil seed crop in India. The crop is affected by number of diseases. Among them leaf blight and leaf spot caused by Alternaria  porri, the disease reduces the seed germination and yield up to 40-40%. The present study concentrated on detection and seed transmission of A. porri  in Niger seeds during kharif seasons-2010-2011. A total of 132 seed samples were collected from farmers, retail shops, fields and APMC markets and were subjected to SBM, PDA, Water agar and 2,4,D  methods. Five seed samples showing higher incidence of A. porri and other fungi in SBM were selected for  seed to seedling transmission of the pathogen.  The results revealed that the kharif - 2010 shows A. porri (33-52%) in the SBM method, PDA (11-25%), Water agar (6-15%) and 2,4-D (9-18%) respectively. The collected seed samples, fields and farmer’s samples show a higher incidence of A. porri  and other fungi. The SBM method is more superior for isolating the A. porri  and other fungi than PDA, water agar and 2,4, D methods. The transmission of A. porri  was (12.6%) in kharif 2010. In kharif 2011, the transmission was (23.2%) in all the five seed samples. The present study reveals that the disease transmission is more during kharif-2011 season than 2010. The A. porri  is a causal agent of leaf spot and leaf blight disease of Niger crop.

Keywords: Bird seed, Transmission,A. porri,SBM Test,Leaf blight
Download this article as Download

How to cite this article:

Nagaraja, O.,  and Krishnappa, M. 2016. Detection and Seed Transmission of  Alternaria  porri  in Niger.Int.J.Curr.Res.Aca.Rev. 4(10): 66-74
doi: http://dx.doi.org/10.20546/ijcrar.2016.410.008