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SCREENING OF PAKISTANI RICE (ORYZAE SATIVA) CULTIVARS AGAINST XANTHOMONAS ORYZA PV. ORYZAE

AMJAD ALI¹, MOHAMMAD HAROON KHAN^{1, 2}, RAISA BANO^{1, 2}, HAMID RASHID^2*, NAVEED IQBAL RAJA³ AND ZUBEDA CHAUDHRY⁴

Abstract: Bacterial blight of rice (Xanthomonas oryzae pv. oryzae) significantly reduces the yield and quality of rice all over the world.  Screening of Pakistani 15 genotypes revealed Kashmir Basmati as a highly resistant genotype and showed ≥ 75% resistance to all the tested strains/isolates, only YR6W14D3 infect the genotype but the severity was not divesting. IR-6, Basmati-370, JP-5 and KSK-370 were ≥ 50% resistant to all the tested strains, while the remaining genotypes were susceptible to all the strains/isolates of Xanthomonas oryzae pv. oryzae. Among the four strains/isolates LKA4(i) showed 38% severity. As Kashmir Basmati showed resistance to LKA4(i), so plant breeder can easily transfer the gene into high yielding and susceptible genotype to enhance the food quality and quantity.

¹Department of Biotechnology, University of Malakand N.W.F.P. Pakistan

²Department of Bioinformatics, Mohammad Ali Jinnah University, Islamabad, Pakistan

³Department of Plant Sciences, Quaid-i-Azam University Islamabad, Pakistan

⁴Department of Botany, Hazara University, Mansehra, Pakistan.