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Research Paper | December 1, 2017

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Assessment of physico-chemical diversity and yellow rust resistance in commercial wheat varieties (Triticum aestivum L.)

Wheat, Yellow rust, Diversity, Puccinia striiformis, Biochemical

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Int. J. Agron. Agri. Res.11(6), 9-22, December 2017


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Wheat (Triticum aestivum L.) is one of the most important cultivated crops in the world. Research studies were carried out to evaluate the genetic diversity between wheat genotypes using morphological and biochemical traits and to assess the performance of wheat genotypes under elevated disease pressure and to distinguish genotypes having adult plant resistance, by evaluating them in a field trap nursery. Mean values revealed that two commercial cultivars Bathoor-08 and Zam-04 produced highest grain yield per plot. Whereas correlation and cluster analysis showed that plant height, days to 50 % heading, number of tiller per plant, peduncle length and harvest index have significant relationship with each other, hence these traits were responsible for most of variation among cultivars. Biplot and dendrogram verified that eight commercial cultivars like Pirsabak-2005, Zam-04, Td-01, Bathoor-08, Narc-2009, NIFA-Barsat-09, Meraj-08 and Seren as more diverse among all the cultivars. Similarly, in biochemical analysis antioxidant activity was recorded maximum for NIFA-Barsat-09 (44.09) and phenolic were found maximum in Atta-Habib (52.9 mg GAE/g).Yellow rust severity recorded for commercial cultivars of wheat indicated that cultivarsFaisalabad-08, NARC-2009, TD-1, Pirsabak-2008, KT-2000, Janbaz and Dharrabi-11 showed complete resistance. While Pirsabak 2005, Sehar -2006, Bathoor-08, NARC-2011, Seren, Pakistan-2013, Atta-Habib, Shahkar-13, NIFA-Barsat, Pirsabak-13 and NIFA-Lilma showed moderate resistance ranging from 5MR to 40MR.


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Assessment of physico-chemical diversity and yellow rust resistance in commercial wheat varieties (Triticum aestivum L.)

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