Assessment of grain yield indices in response to drought stress in wheat ( Triticum aestivum L.).

Autor:	Anwaar HA; Department of Plant Pathology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Perveen R; Department of Plant Pathology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Mansha MZ; College of Agriculture, Bahauddin Zakariya University (BZU), Bahadur Sub Campus, Layyah, Pakistan., Abid M; Department of Plant Pathology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Sarwar ZM; Department of Entomology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Aatif HM; College of Agriculture, Bahauddin Zakariya University (BZU), Bahadur Sub Campus, Layyah, Pakistan., Umar UUD; Department of Plant Pathology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Sajid M; Department of Plant Pathology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Aslam HMU; Department of Plant Pathology, University of Agriculture, Faisalabad (UAF), Pakistan., Alam MM; Department of Plant Pathology, Bahauddin Zakariya University (BZU), Multan, Pakistan., Rizwan M; Department of Plant Breeding & Genetics, University of Agriculture, Faisalabad, Pakistan., Ikram RM; Department of Agronomy, MNS-University of Agriculture, Multan 60000, Pakistan., Alghanem SMS; Department of Biology, College of Science, Tabuk University, Tabuk, Saudi Arabia., Rashid A; Office of Research Innovation and Commercialization (ORIC), University of Agriculture, Faisalabad, Pakistan., Khan KA; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.; Biology Department, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia.
Jazyk:	angličtina
Zdroj:	Saudi journal of biological sciences [Saudi J Biol Sci] 2020 Jul; Vol. 27 (7), pp. 1818-1823. Date of Electronic Publication: 2019 Dec 17.
DOI:	10.1016/j.sjbs.2019.12.009
Abstrakt:	Drought stress constricts crop production in the world. Increasing human population and predicted temperature increase owing to global warming will lead ruthless problems for agricultural production in near future. Hence, use of high yielding genotypes having drought tolerance and scrutinize of drought sensitive local cultivars for making them tolerant may be the proficient approaches to cope its detrimental outcomes. The current study was executed during 20015-2016 and 2016-2017 in field using randomized complete block design under factorial arrangements on 50 wheat genotypes for exploring their sensitivity and tolerance against drought. Some of the attributes of grain yield and drought tolerance indices were recorded. Grain yield showed negative correlations with tolerance index (TOL), drought index (DI) and stress susceptibility index (SSI) while positive correlation with mean productivity (MP) and geometric mean productivity (GMP) under drought condition. These findings depicted that tolerant genotypes could be chosen by high MP and GMP values and low SSI and TOL values. Based on the results, genotypes GA-02, Faisalabad-83, 9444, Sehar-06, Pirsabak-04 and Kohistan-97 were more tolerant and recognized as suitable for both normal and drought conditions. Genotypes of Chenab-00, Kohsar-95, Parwaz-94 and Kohenoor-83 confirmed more sensitive due to high grain yield loss under drought stress. (© 2019 The Author(s).)
Databáze:	MEDLINE
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