EFFECT OF DROUGHT STRESS AND EVALUATION OF DROUGHT TOLERANCE INDEXES IN WHEAT (TRITICUM AESTIVUM L.)

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AZADI A.; ROOZBAHANI A.; SADEGHI SHOAE M.

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Journal: IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING Year:2013 | Volume:9 | Issue:1 Page(s): 35-47

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Title

EFFECT OF DROUGHT STRESS AND EVALUATION OF DROUGHT TOLERANCE INDEXES IN WHEAT (TRITICUM AESTIVUM L.)

Author(s)

AZADI A. | ROOZBAHANI A. | SADEGHI SHOAE M. | Issue Writer Certificate

Keywords

WHEATQ3

DROUGHT STRESSQ2

SUSCEPTIBILITY AND TOLERANCE STRESS INDEXESQ2

Abstract

Drought stress is one of major cause of yield and yield components reduction, so in order to evaluate drought tolerance in WHEAT cultivars using SUSCEPTIBILITY AND TOLERANCE STRESS INDEXES, an experiment was carried out in strip-plot based on randomized complete block design with three replications in 2005 in Karaj region. In this experiment four irrigation levels (control (a1), mild stress (a2), moderate stress (a3), high stress (a4)) and eleven cultivars were levels of horizontal and vertical factors, respectively. In this experiment line source sprinkler was applied to irrigate cultivars, so amount of water used for each treatments were: (a1=5700 cubic meters, a2=4500 cubic meters, a3=3000 cubic meters, a4=2100 cubic meters). By using mean productivity (MP), geometric mean productivity (GMP), stress tolerance index(STI), stress Susceptibility Index (SSI) and tolerance (TOL) indexes, drought tolerance and drought resistance of cultivars were evaluated and results showed that there were positive correlations between MP, GMP, STI indexes with yield potential(Yp) and yield under stress conditions. therefore these indexes can be used to identify tolerant genotypes. Finally two-D plots used to classify cultivars into four groups and display that Sardari and Azadr2 cultivars had higher yield than others in both conditions.

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APA: Copy

AZADI, A., ROOZBAHANI, A., & SADEGHI SHOAE, M.. (2013). EFFECT OF DROUGHT STRESS AND EVALUATION OF DROUGHT TOLERANCE INDEXES IN WHEAT (TRITICUM AESTIVUM L.). IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING, 9(1), 35-47. SID. https://sid.ir/paper/190333/en

Vancouver: Copy

AZADI A., ROOZBAHANI A., SADEGHI SHOAE M.. EFFECT OF DROUGHT STRESS AND EVALUATION OF DROUGHT TOLERANCE INDEXES IN WHEAT (TRITICUM AESTIVUM L.). IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING[Internet]. 2013;9(1):35-47. Available from: https://sid.ir/paper/190333/en

IEEE: Copy

A. AZADI, A. ROOZBAHANI, and M. SADEGHI SHOAE, “EFFECT OF DROUGHT STRESS AND EVALUATION OF DROUGHT TOLERANCE INDEXES IN WHEAT (TRITICUM AESTIVUM L.),” IRANIAN JOURNAL OF AGRONOMY AND PLANT BREEDING, vol. 9, no. 1, pp. 35–47, 2013, [Online]. Available: https://sid.ir/paper/190333/en

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