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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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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 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(9): 2755-2765
DOI: https://doi.org/10.20546/ijcmas.2019.809.317


Evaluation of Resistance of Rice Genotypes (Derived from the Cross between HKR-47 and IRBB-60) against Bacterial Blight caused by Xanthomonas oryzae pv. oryzae
Kirti Mehta*, Nikita Baliyan, Rahul Kumar Meena and Shikha Yashveer
Department of Molecular Biology, Biotechnology and Bioinformatics, College of Basic Science and Humanities, Chaudhary Charan Singh Haryana Agricultural University, Hisar-125004, India
*Corresponding author
Abstract:

India is among the topmost rice producers and consumers in the world. Rice crop is susceptible to various bacterial diseases and one such commonly known disease is Bacterial Blight (BB) caused by the pathogen Xanthomonas oryzae pv. oryzae (Xoo) and is known to severally impact rice crop yield. Rice variety HKR-47 is widely popular amongst rice farmers and consumers in Haryana because of its high yield, medium slender grains, and excellent cooking and eating qualities, however, HKR-47 exhibits less endurance to BB. The aim of the study conducted at CCS Haryana Agricultural University was to investigate the genetic potential of BC3F3 pyramided rice genotypes (cross HKR-47 x IRBB-60) having resistance genes (Xa21, xa13 and xa5). These genotypes were tested for virulence against BB under artificial conditions using Clip method of artificial inoculation. On average, five leaves per plant were inoculated and visual scoring was done after 14 days. Rating of disease reaction was based on a 0-9 scale of the standard evaluation system (SES) for rice. Rice genotypes with all three genes exhibited relatively low mean lesion length compared to single or double combinations thus establishing higher resistance of three-gene genotypes to BB. The lines obtained in our study can be used as genetic resources for BB resistance in breeding programs that will be paving the way for an environmentally-friendly means to achieve a better disease management.


Keywords: Xanthomonas oryzae pv. oryzae, bacterial blight, resistance genes, disease scoring, rice
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How to cite this article:

Kirti Mehta, Nikita Baliyan, Rahul Kumar Meena and Shikha Yashveer 2019. Evaluation of Resistance of Rice Genotypes (Derived from the Cross between HKR-47 and IRBB-60) against Bacterial Blight caused by Xanthomonas oryzae pv. oryzae.Int.J.Curr.Microbiol.App.Sci. 8(9): 2755-2765. doi: https://doi.org/10.20546/ijcmas.2019.809.317