Milk stage kernel infection frequency in kharif sorghum at grain mold prone locations in India


427 / 217

Authors

  • I.K. DAS*, C. GOVARDHAN, R.B. GHORADE, Y.D. NARAYANA, G.R. BHANDERI, N. KANNABABU, SUNIL KUMAR and V.A. TONAPI

https://doi.org/10.24838/ip.2017.v70.i2.70611

Keywords:

Curvularia, Fusarium, interactions, milk stage infection frequency, Sorghum

Abstract

Milk stage kernel infection frequency has substantial effects on mold development in mature sorghum grain. Field experiments were conducted with 16 sorghum genotypes at four grain mold prone locations (Akola, Hyderabad, Dharwad and Surat) in India during kharif 2014 and 2015. The genotypes included grain mold susceptible, resistant, improved germplasm, breeding lines and released cultivars. The objective was to quantify natural infection frequency of fungi in milk stage kernel and study the response of various sorghum genotypes against this infection. Results revealed that Fusarium (16.1%) and Curvularia spp. (7.9%) were predominant fungal genera at the milk stage kernel at all the locations under study. Few other fungi namely Alternaria, Bipolaris, Aspergillus, and Penicillium spp. were detected sporadically in low frequency (≤0.95%). There was significant negative association between infection frequency of Fusarium and Curvularia especially when intensity of infection was moderate to high (>25%). The genotypes B58586, GMR156-1, GMR166-1, SGMRN12-3-1 and IS25070 were found promising with low intensity (average total infection<10%) of milk stage kernel infection across environments. The information can be useful for resistant breeding program against specific fungal component of grain mold.

Downloads

Submitted

2017-05-25

Published

2017-05-25

Issue

Vol. 70 No. 2 (2017): Indian Phytopathology

Section

Research Articles

License

For Authors

As soon as an article is accepted for publication, authors are requested to assign copyright of the article (or to grant exclusive publication and dissemination rights) to the publisher (Indian Phytopathlogical Society). This will ensure the widest possible protection and dissemination of information.

For Readers

While the advice and information in this journal is believed to be true and accurate at the date of its publication, the authors, the editors, nor the publisher can accept any legal responsibility for any errors or omissions that may have been made. The publisher makes no warranty, express or implied, with respect to the material contained herein.

All articles published in this journal are protected by copyright, which covers the exclusive rights to reproduce and distribute the article (e.g., as offprints), as well as all translation rights. No material published in this journal may be reproduced photographically or stored on microfilm, in electronic data bases, on video disks, etc., without first obtaining written permission from the publisher. The use of general descriptive names, trade names, trademarks, etc. in this publication, even if not specifically identified, implies that these names are protected by the relevant laws and regulations.

How to Cite

N. KANNABABU, SUNIL KUMAR and V.A. TONAPI, I. D. C. G. R. G. Y. N. G. B. (2017). Milk stage kernel infection frequency in kharif sorghum at grain mold prone locations in India. Indian Phytopathology, 70(2), 178-183. https://doi.org/10.24838/ip.2017.v70.i2.70611