Evaluation of Wheat Genotypes for Physiological and Yield Related Traits Under Rainfed Conditions

Munir Ahmad; Ayesha Batool; Armghan Shahzad; Farhana Khaliq

doi:10.66432/p737za06

Munir Ahmad * Department of Plant Breeding and Genetics, PMAS Arid Agriculture University Rawalpindi , Ayesha Batool Department of Plant Breeding and Genetics, PMAS Arid Agriculture University Rawalpindi, Pakistan , Armghan Shahzad National Institute for Genomics and Advanced Biotechnology (NIGAB) PARC-National Agriculture Research Center (NARC) Park Road, ISLAMABAD PAKISTAN-45500 , Farhana Khaliq Department of Plant Breeding and Genetics, PMAS Arid Agriculture University Rawalpindi

* Corresponding author: muneer.ahmad@uaar.edu.pk

DOI:

https://doi.org/10.66432/p737za06

Keywords:

Wheat, Rainfed, Physiological parameters, Yield

Abstract

Wheat (Triticum aestivum L.) is staple food of more than two billion people across the world. Wheat farmer faces many constraints due to changing climatic conditions. About 50% yield losses occur due to inadequate rainfall in arid and semiarid region. Therefore, plant breeders have to evaluate and develop climate resilient wheat varieties to ensure food security. The prime objective of the study was to evaluate performance of spring wheat genotypes for various physiological and yield related traits under rainfed conditions. To achieve this objective, research was carried out at National Agricultural Research Centre (NARC) during the two consecutive Rabi seasons (2020-2021) and (2021-2022). The data was collected at different stages of crop for physiological traits viz. canopy temperature depression (CTD), spade chlorophyll content, relative water content, cell membrane stability, day to heading, day to maturity, yield related traits viz. plant height, Fertile tillers per plant, spike length, number of spikelets per spike, 1000 grain .weight, grain number per spike, yield per meter square. The data collected for all traits were subjected.to analysis of variance (ANOVA).and correlation to ascertain the significance of result. The present study revealed that wheat genotypes NR-448, 18696, AAS-11 and Pakistan 13 showed best performance for grain yield under rainfed conditions. The grain yield was positively correlated with all the yield related parameters.

Author Biographies

Munir Ahmad, Department of Plant Breeding and Genetics, PMAS Arid Agriculture University Rawalpindi

Assistant Professor, Department of Plant Breeding and Genetics, PMAS Arid Agriculture University Rawalpindi
Armghan Shahzad, National Institute for Genomics and Advanced Biotechnology (NIGAB) PARC-National Agriculture Research Center (NARC) Park Road, ISLAMABAD PAKISTAN-45500

Principal Scientific Officer / Program Leader, National Institute for Genomics and Advanced Biotechnology (NIGAB) PARC-National Agriculture Research Center (NARC) Park Road, ISLAMABAD PAKISTAN-45500

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