EVALUATION OF DROUGHT TOLERANCE IN RAPESEED VARIETIES BASED ON PHYSIOLOGICAL AND AGRONOMICAL CHARACTERISTICS AT YAZD REGION

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SHAHRABI B.; FARAHMANDFAR E.; HASSANLO T.; SHIRANI RAD A.H.; TABATABAEE S.A.

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Journal: Crop Production Year:2014 | Volume:6 | Issue:4 Page(s): 77-97

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Title

EVALUATION OF DROUGHT TOLERANCE IN RAPESEED VARIETIES BASED ON PHYSIOLOGICAL AND AGRONOMICAL CHARACTERISTICS AT YAZD REGION

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RELATIVE WATER CONTENTQ2

STOMATA CONDUCTIVITYQ2

STRESS TOLERANCE INDICESQ2

YIELD AND YIELD COMPONENTSQ2

Abstract

In order to study of drought stress on physiological and agronomical characteristics of rapeseed varieties, an experiment was carried out as split plot based on randomized complete block design with three replications at Yazd region during of 2011-2012. Irrigation treatments was designed in two levels as main plot including irrigation after 80 mm evaporation from evaporation pan, class A (control treatment) and drought stress as withholding irrigation from flowering stage, and varieties lilian, Cooper and Savannah as sub plots. Sampling stages was done 7, 12 and 26 days after treatment. The results indicated that drought stress significantly decreased the stomatal conductivity, RELATIVE WATER CONTENT (RWC), plant height, silique per plant, 1000 grain weight and grain yield, whereas, in comparison with control SPAD value was higher. Lilian indicated the higher stomatal conductivity (196 mmol m-2 s-1) and RWC, silique per plant (300 silique), 1000 grain weight (4.06 g) and grain yield (1411 kg.ha-1). In this study, Geometric mean productivity (GMP) and Stress tolerance index (STI) had the high correlation with grain yield in normal and drought stress conditions. Also, Bi-plot diagram based on two principal components indicated that Lilian variety with higher GMP and STI indices in addition with higher GMP and STI both in stress and non-stress environment had the highest grain yield.

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APA: Copy

SHAHRABI, B., FARAHMANDFAR, E., HASSANLO, T., SHIRANI RAD, A.H., & TABATABAEE, S.A.. (2014). EVALUATION OF DROUGHT TOLERANCE IN RAPESEED VARIETIES BASED ON PHYSIOLOGICAL AND AGRONOMICAL CHARACTERISTICS AT YAZD REGION. ELECTRONIC JOURNAL OF CROP PRODUCTION, 6(4), 77-97. SID. https://sid.ir/paper/135006/en

Vancouver: Copy

SHAHRABI B., FARAHMANDFAR E., HASSANLO T., SHIRANI RAD A.H., TABATABAEE S.A.. EVALUATION OF DROUGHT TOLERANCE IN RAPESEED VARIETIES BASED ON PHYSIOLOGICAL AND AGRONOMICAL CHARACTERISTICS AT YAZD REGION. ELECTRONIC JOURNAL OF CROP PRODUCTION[Internet]. 2014;6(4):77-97. Available from: https://sid.ir/paper/135006/en

IEEE: Copy

B. SHAHRABI, E. FARAHMANDFAR, T. HASSANLO, A.H. SHIRANI RAD, and S.A. TABATABAEE, “EVALUATION OF DROUGHT TOLERANCE IN RAPESEED VARIETIES BASED ON PHYSIOLOGICAL AND AGRONOMICAL CHARACTERISTICS AT YAZD REGION,” ELECTRONIC JOURNAL OF CROP PRODUCTION, vol. 6, no. 4, pp. 77–97, 2014, [Online]. Available: https://sid.ir/paper/135006/en

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