EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS AT DIFFERENT GROWTH STAGES OF WHEAT CULTIVARS

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BEHDAD MARIEH; PAKNEJAD FARZAD; VAZAN SAEID; ARDAKANI M.R.; NASRI MOHAMMAD

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Journal: JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES) Year:2010 | Volume:1 | Issue:2 Page(s): 143-157

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Title

EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS AT DIFFERENT GROWTH STAGES OF WHEAT CULTIVARS

Author(s)

Keywords

WHEATQ3

LIMITED IRRIGATIONQ2

YIELDQ2

YIELD COMPONENTSQ3

Abstract

The objectives of this study were to evaluate the effects of limit irrigation on YIELD and YIELD components in WHEAT. The study was conducted using a split plot design in completely randomized blocks with four replication and 16 treatments. All farm experiments were conducted in agriculture research field of Azad University of Karaj in 2007 cropping season. The main plot treatments consisted of 8 irrigation regimes as control treatment (T1), irrigation in 60 and 80 depletion of soil moisture (T2 and T3), stop irrigation in stem elongation stage (T4), stop irrigation during stem elongation to ripening (T5), stop irrigation in flowering stage (T6), stop of irrigation during flowering to ripening (T7), stop irrigation in grain filling stage (T8) as first factor. The second plot as secondary factor consisted of two WHEAT cultivars (Chamran and Marvdasht). In this study, grain YIELD and YIELD related characteristics were evaluated and all treatments showed significant differences with control plot. The results of the study revealed that LIMITED IRRIGATION have a significant effect (p>0.001) on grain YIELD, biological YIELD, harvest index and 1000 grain weight. The treatments (T2 to T8) showed 15.7%, 37.8%, 13%, 61%, 45%, 62% and 43% grain YIELD reduction, respectively. Water stresses in flowering to ripening period (T7) have the most influence on grain YIELD. Also, statistical tests on YIELD data showed both varieties (Chamran and Marvdasht) similarly affected by water stress. Correlation coefficient tests showed that biological YIELD (r 2=0.77), 1000 grain weight (r2=0.74) and harvest index (r2=0.69) have the most correlation with grain YIELD.

Cites

EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS OF SESAME CULTIVARS UNDER KERMAN CONDITIONS (SESAMUM INDICUM L.)

References

EVALUATION OF DROUGHT STRESS ON EFFECTIVE TRAITS AT ACCUMULATIVE ASSIMILATE OF GRAIN IN DIFFERENT CULTIVARS OF WHEAT

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APA: Copy

BEHDAD, MARIEH, PAKNEJAD, FARZAD, VAZAN, SAEID, ARDAKANI, M.R., & NASRI, MOHAMMAD. (2010). EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS AT DIFFERENT GROWTH STAGES OF WHEAT CULTIVARS. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), 1(2), 143-157. SID. https://sid.ir/paper/182194/en

Vancouver: Copy

BEHDAD MARIEH, PAKNEJAD FARZAD, VAZAN SAEID, ARDAKANI M.R., NASRI MOHAMMAD. EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS AT DIFFERENT GROWTH STAGES OF WHEAT CULTIVARS. JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES)[Internet]. 2010;1(2):143-157. Available from: https://sid.ir/paper/182194/en

IEEE: Copy

MARIEH BEHDAD, FARZAD PAKNEJAD, SAEID VAZAN, M.R. ARDAKANI, and MOHAMMAD NASRI, “EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS AT DIFFERENT GROWTH STAGES OF WHEAT CULTIVARS,” JOURNAL OF CROP PRODUCTION RESEARCH (ENVIRONMENTAL STRESSES IN PLANT SCIENCES), vol. 1, no. 2, pp. 143–157, 2010, [Online]. Available: https://sid.ir/paper/182194/en

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