PJB-2019-490
Multivariate analysis for yield and proline content in wheat under lab and field conditions
Mirza Faisal Qaseem, Rahmatullah Qureshi, Humaira Shaheen and Abdul Waheed
Abstract
Drought is major constraint to wheat yield and globally causes significant yield losses. Increasing wheat tolerance to drought by screening diverse germplasm and incorporation of tolerant genes is an important goal of wheat breeding program. The present study was aimed at screening drought tolerant genotypes from CIMMYT bread wheat nurseries using agro-traits and proline content. A panel of one hundred and eight comprising mixture of CIMMYT advanced wheat lines along with local high yielding varieties were evaluated for phenological and yield traits along with proline content under glasshouse and field conditions during two consecutive cropping years (i.e. 2014-15 and 2015-16). Results revealed that proline content of genotypes was increased under drought stress and had a weak correlation with yield and yield components. Using multivariate analysis technique, genotypes having higher yield and yield components under both stressed and non-stressed conditions were identified and 15 high yielding varieties were identified and recommended for future research. Thus, we can contemplate that it can be used as criteria for selecting tolerant genotypes under stressed condition. These can be incorporated in local breeding program for developing drought tolerant varieties.
To Cite this article:
Qaseem, M.F., R. Qureshi, H. Shaheen and A. Waheed. 2021. Multivariate analysis for yield and proline content in wheat under lab and field conditions. Pak. J. Bot., 53(1): DOI: http://dx.doi.org/10.30848/PJB2021-1(30)
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