THE EFFECT OF DROUGHT STRESS ON GERMINATION, GROWTH, ABSORBTION EFFICIENCY AND WATER USE EFFICIENCY OF HULL-LESS BARLEY GENOTYPES

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BAGHERI A.R.

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Journal: JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES) Year:2009 | Volume:1 | Issue:1 Page(s): 39-52

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Title

THE EFFECT OF DROUGHT STRESS ON GERMINATION, GROWTH, ABSORBTION EFFICIENCY AND WATER USE EFFICIENCY OF HULL-LESS BARLEY GENOTYPES

Author(s)

BAGHERI A.R. | Issue Writer Certificate

Keywords

DROUGHT STRESSQ2

GERMINATIONQ2

GROWTHQ2

PLANT WATER CONTENTQ2

Abstract

In Iran, the most extension regions growing cereals, suffer from severe drought. One of the reliable crops for these situations is barley. A low success in developing barley tolerant genotypes is, at least partially, due to a low selection efficiency using multiple agronomic parameters and lack of effective evaluation methods for drought tolerance selecting genotypes in screening processes. Four hulls-less barley genotypes (UH3, U46M, EHM81- 12 and CM67) were grown in Research Station of Eghlid Azad University by two different experiments under DROUGHT STRESS study in two years (2005 and 2006). Four water supply treatments (irrigating after the soil water potential reached -.0.5 bar (control), 1.5 bar, -3 and -5 bar) were used. The experimental design was a split plot in which drought treatments were arranged as main plots and genotypes as subplots, based on a randomized complete block design with three replications. The measured parameters were GROWTH relations, water potentials and water relations. The GERMINATION test in dry conditions was carried out and germinating percent and shoot and root length and weight were measured. The present study demonstrated that the number of leaves per plot was reduced significantly by stress. LAR was less sensitive to stress. Among the genotypes UH3 had the lowest and CM67 the highest GROWTH amount. The GROWTH differences were related to low PLANT WATER CONTENT. DROUGHT STRESS caused decreasing in water ratios and potentials in leaf, RWC, WUE, RGR, CGR, NAR and LAI ratios, seed GERMINATION and seedling GROWTH. LAR value was first decreased by stress treatments but showed an increase at high stress levels.

Cites

INVESTIGATION OF YIELD, YIELD COMPONENTS CHANGES AND SOME PHYSIOLOGICAL CHARACTERISTICS OF BARLEY GENOTYPES UNDER IRRIGATION TENSION CONDITIONS

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APA: Copy

BAGHERI, A.R.. (2009). THE EFFECT OF DROUGHT STRESS ON GERMINATION, GROWTH, ABSORBTION EFFICIENCY AND WATER USE EFFICIENCY OF HULL-LESS BARLEY GENOTYPES. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), 1(1), 39-52. SID. https://sid.ir/paper/182322/en

Vancouver: Copy

BAGHERI A.R.. THE EFFECT OF DROUGHT STRESS ON GERMINATION, GROWTH, ABSORBTION EFFICIENCY AND WATER USE EFFICIENCY OF HULL-LESS BARLEY GENOTYPES. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES)[Internet]. 2009;1(1):39-52. Available from: https://sid.ir/paper/182322/en

IEEE: Copy

A.R. BAGHERI, “THE EFFECT OF DROUGHT STRESS ON GERMINATION, GROWTH, ABSORBTION EFFICIENCY AND WATER USE EFFICIENCY OF HULL-LESS BARLEY GENOTYPES,” JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), vol. 1, no. 1, pp. 39–52, 2009, [Online]. Available: https://sid.ir/paper/182322/en

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