USE OF CHEMICAL DESICCATION AS A MEANS OF DROUGHT TOLERANCE SELECTION CRITERION IN WHEAT

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ESLAMI R.; GAFFARI A.A.; TAJBAKSH M.; ROOSTAII M.; BARNOSI A.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2009 | Volume:2 | Issue:5 Page(s): 59-69

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Title

USE OF CHEMICAL DESICCATION AS A MEANS OF DROUGHT TOLERANCE SELECTION CRITERION IN WHEAT

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Keywords

CHEMICAL DESICCATIONQ2

DROUGHT STRESS TOLERANCEQ3

WHEATQ3

Abstract

To study of DROUGHT STRESS TOLERANCE by using CHEMICAL DESICCATION in the bread WHEAT genotypes, the present examination was carried out by RCBD split plot design with two main plots (rain fed and supplemental irrigation), and 20 WHEAT genotypes (sub plots) with three replications, during 2007-2008 crop season in Meragheh Dry Land Agricultural Research Station. WHEAT genotypes were sprayed three days after anthesis by NaClO3 and KCa solutions 3.5% for creating artificial stress (disordered photosynthesis). Result analysis variance showed that, under the supplemental irrigation there were significant differences between genotypes in grain yield and 1000 kernel weights. Also, under drought stress conditions there were significant differences between genotypes in 1000 kernel weight but no significant differences in grain yield. Spraying of KCa and NaClO3 caused a reduction in grain yield and 1000 kernel weight. Using CHEMICAL DESICCATION under supplemental irrigation caused a reduced 20% of grain reduction yield and also 1000 kernel was reduced about 7% with spray. This yield reduction is probably attributed to photosynthesis stop after the chemical (KCa and NaClO3) spray. In general genotypes with and without spraying showed high stability to grain weight and were considered drought tolerant. Therefore CHEMICAL DESICCATION can be used as a drought tolerance selection criterion in WHEAT breeding programs.

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References

STUDY ON GAS EXCHANGE AND GRAIN WEIGHT STABILITY IN DIFFERENT BARLEY (HORDEUM VULGARE L.) GENOTYPES UNDER DROUGHT STRESS CONDITIONS

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APA: Copy

ESLAMI, R., GAFFARI, A.A., TAJBAKSH, M., ROOSTAII, M., & BARNOSI, A.. (2009). USE OF CHEMICAL DESICCATION AS A MEANS OF DROUGHT TOLERANCE SELECTION CRITERION IN WHEAT. JOURNAL OF RESEARCH IN CROP SCIENCES, 2(5), 59-69. SID. https://sid.ir/paper/167926/en

Vancouver: Copy

ESLAMI R., GAFFARI A.A., TAJBAKSH M., ROOSTAII M., BARNOSI A.. USE OF CHEMICAL DESICCATION AS A MEANS OF DROUGHT TOLERANCE SELECTION CRITERION IN WHEAT. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2009;2(5):59-69. Available from: https://sid.ir/paper/167926/en

IEEE: Copy

R. ESLAMI, A.A. GAFFARI, M. TAJBAKSH, M. ROOSTAII, and A. BARNOSI, “USE OF CHEMICAL DESICCATION AS A MEANS OF DROUGHT TOLERANCE SELECTION CRITERION IN WHEAT,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 2, no. 5, pp. 59–69, 2009, [Online]. Available: https://sid.ir/paper/167926/en

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