Measurement of Phenotypic Variation for Control and Bacterial Leaf Blight Inoculated Rice Lines and Varieties
American Journal of Bioscience and Bioengineering
Volume 4, Issue 6, December 2016, Pages: 59-64
Received: Oct. 31, 2016; Accepted: Nov. 19, 2016; Published: Dec. 20, 2016
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Authors
M. H. M. Mubassir, Department of Biotechnology, Bangladesh Agricultural University, Mymensingh, Bangladesh
Khondoker M. Nasiruddin, Department of Biotechnology, Bangladesh Agricultural University, Mymensingh, Bangladesh
Nazmul Hoque Shahin, Bangladesh Institute of Nuclear Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh
Shamsun Nahar Begum, Bangladesh Institute of Nuclear Agriculture, Bangladesh Agricultural University, Mymensingh, Bangladesh
Afia Sultana, Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh, Bangladesh
A. Q. M. Bazlur Rashid, Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh, Bangladesh
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Abstract
Bacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae is a devastating disease of rice, the staple food crop of Bangladesh. Under field condition the disease significantly damages the phenotypic characteristics of the plants affecting the yield. An assessment of the phenotypic variations due to the disease in 10 rice lines and 17 rice varieties were studied at the maximum tillering stage in both natural and induced epiphytotic conditions. Along with the indigenous cultivars the test materials including the check resistant and susceptible cultivars were collected from IRRI. Significant differences in both plant height and the number of effective tillers were recorded in the check and inoculated lines and varieties. Among the rice lines, RC222 resulted the maximum reduction in plant height (3.18%) in the inoculated plants whereas RC217 yielded the minimum reduction of 1.27%. Among the rice varieties, Binadhan-8 and Binadhan-10 showed the maximum reduction in plant height (11.43% and 18.22% respectively) for the inoculated plants where IRBB21, IRBB65 and Kumragur resulted 0% reduction. The number of effective tiller among the rice lines, RC251 yielded the maximum reduction of 26.19% in the inoculated plants whereas RC192 showed as minimum as 4.16% reduction. For rice varieties, Binadhan-8, Binadhan-10 and BR-11 yielded the maximum reduction of 52.62%, 50.07% and 50.06% while IRBB21, IRBB65 and Kumragur showed 0 % reduction. The findings of such phenotypic variations may contribute significantly to the selection of best lines and further research to develop the disease free commercial varieties of rice against the disease.
Keywords
Bacterial Leaf Blight, Phenotype, Resistance, Plant Height, Tiller Number
To cite this article
M. H. M. Mubassir, Khondoker M. Nasiruddin, Nazmul Hoque Shahin, Shamsun Nahar Begum, Afia Sultana, A. Q. M. Bazlur Rashid, Measurement of Phenotypic Variation for Control and Bacterial Leaf Blight Inoculated Rice Lines and Varieties, American Journal of Bioscience and Bioengineering. Vol. 4, No. 6, 2016, pp. 59-64. doi: 10.11648/j.bio.20160406.11
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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