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Physiological and Yield Characteristics of Barley (Hordeum vulgare) Genotypes Subjected to Drought Stress

Department of Botany, Faculty of Sciences, Baba Mastnath University, Rohtak-124 021 (Haryana), India
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(Received: February 10, 2023; Accepted: March 21, 2023)


Understanding agronomic features under water deficit is crucial for maximizing crop productivity potential
and harvest. To further understand how drought stress affected barley’s chlorophyll content and stability index, stem reserve mobilization, canopy temperature depression, plant height, number of spikelets per spike, spike length, number of productive tillers per plant and biomass, a pot experiment was performed in Department of Botany, Baba Mastnath University, in complete randomized design. Genotype varied from 29.0 to 38.0% (SRM), 0.09 to 1.08 °C (CTD), 38.9 to 28.0 mg/g FW (chl. ‘a’), 15.2 to 14.6 mg/g FW (chl. ‘b’), 11.80 to 8.97% (CSI), 89.23 to 76.30 cm (plant height), 9.00 to 7.13 cm (spike length), 12.71 to 11.60 g (biomass), 11.71 to 10.87 (number of spikelet/spike) and 73.42 to 49.88 (number of productive tillers/plant). In light of recent results, the barley genotypes BH-393, BH-855, DWRB-828 and RD-57 were identified as promising among all studied genotypes which can be utilized for cultivation in areas subjected to drought and for further physiological studies.
Key words : Barley, drought stress, physiological traits, yield attributes