EVALUATION OF DIFFERENT DROUGHT TOLERANCE INDICES IN SOME SPRING BARLEY GENOTYPES

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BAHERI S.F.; JAVANSHIR A.; KAZEMI H.A.; AHARIZAD S.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2003 | Volume:13 | Issue:3 Page(s): 95-0

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Title

EVALUATION OF DIFFERENT DROUGHT TOLERANCE INDICES IN SOME SPRING BARLEY GENOTYPES

Author(s)

BAHERI S.F. | JAVANSHIR A. | KAZEMI H.A. | AHARIZAD S. | Issue Writer Certificate

Keywords

DROUGHT TOLERANCE INDEXQ4

SPRING BARLEYQ2

YIELD.Q2

Abstract

To evaluate drought resistance indices in SPRING BARLEY genotypes a factorial experiment based on randomized complete block design was carried out with three replications in Khalatpooshan Agricultural Experiment Station University of Tabriz Iran during 2001 growing season. Treatments were five genotypes (MB76-17 IB78-26403 Valfagr Sefidan and Gharamalek) and four irrigation regimes which were applied at the following growing stages: 1- seedling emergence and booting 2- seedling emergence booting heading. 3- seedling emergence booting and seed milk stage 4- seedling emergence booting heading and seed milk stage. The last irrigation regime (No.4) was considered as control treatment. Several drought resistance indices including mean productivity (MP) geometric mean productivity (GNP) tolerance index (TOL) harmonic mean (HAR) stress susceptibility index (SSI) and stress tolerance index (STI) were estimated based on grain YIELD.of the genotypes both under stress (Irrigation regimes of 1 2 and 3) and non-stress conditions. Correlation coefficients of these indices with each other for indices such as MP GMP HAR and STI were highly significant in both stress and non-stress conditions. Because STI was correlated with MP GMP and HAR indices and also differentiated the genotypes belonging to A group from other groups effectively therefore it could be recommended as the most suitable index for selecting drought resistant barley genotypes. Three dimensional diagrams of Y__p, Y__s and STI which were made for each irrigation regime also revealed that line IB78-26403 and landrace of Gharamalek were the most drought resistant amongst the genotypes under study in both severe (1^st irrigation regime) and moderate (2^nd irrigation regime) drought stresses.

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APA: Copy

BAHERI, S.F., JAVANSHIR, A., KAZEMI, H.A., & AHARIZAD, S.. (2003). EVALUATION OF DIFFERENT DROUGHT TOLERANCE INDICES IN SOME SPRING BARLEY GENOTYPES . JOURNAL OF AGRICULTURAL KNOWLEDGE, 13(3), 95-0. SID. https://sid.ir/paper/28989/en

Vancouver: Copy

BAHERI S.F., JAVANSHIR A., KAZEMI H.A., AHARIZAD S.. EVALUATION OF DIFFERENT DROUGHT TOLERANCE INDICES IN SOME SPRING BARLEY GENOTYPES . JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2003;13(3):95-0. Available from: https://sid.ir/paper/28989/en

IEEE: Copy

S.F. BAHERI, A. JAVANSHIR, H.A. KAZEMI, and S. AHARIZAD, “EVALUATION OF DIFFERENT DROUGHT TOLERANCE INDICES IN SOME SPRING BARLEY GENOTYPES ,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 13, no. 3, pp. 95–0, 2003, [Online]. Available: https://sid.ir/paper/28989/en

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