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Paper Information

Journal:   IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)   SPRING 2016 , Volume 47 , Number 1; Page(s) 29 To 40.
 
Paper: 

THE EFFECTS OF TERMINAL HEAT STRESS ON YIELD, YIELD COMPONENTS AND SOME MORPHO-PHENOLOGICAL TRAITS OF BARLEY GENOTYPES (HORDEUM VULGARE L.) IN AHVAZ WEATHER CONDITIONS

 
 
Author(s):  ORAKI AKRAM, SIAHPOOSH MOHAMMAD REZA*, RAHNAMA AFRASYAB, LAKZADEH IRAJ
 
* DEPARTMENT OF AGRONOMY AND PLANT BREEDING, SHAHID CHAMRAN UNIVERSITY OF AHWAZ, AHWAZ, IRAN
 
Abstract: 

Terminal heat stress is the most widespread heat stress in the world. In order to evaluate the effect of heat stress on yield, yield component, and mopho-phenological traits of barley, 10 barley genotypes including the 2-row genotypes: Mahour, Khoram, Nimrooz, Abidar and 6-row genotypes: Yousef, Rihan 03, Izeh, Zahak, Nosrat, Jonoub were tested under normal (optimum sowing date) and heat stress (late sowing date) conditions in experimental field of Shahid Chamran University of Ahvaz. The experiment in each condition was arranged in a randomized complete block design. Terminal heat stress caused significant reduction in days from sowing to heading (38%), days from sowing to maturity (34%), plant height (47%), peduncle length (36%), biological yield (52%), spike length without awn (21%), number of spikelet per spike (31%), number of kernels per spike (36%), 1000 kernel weight (7%), harvest index (7%) and grain yield (42%). According to the results, in normal condition Yousef with 5.4 t/ha and in stress condition Rihan 03 and Jonoub with 3.4 t/ha have the maximum grain yield. Abider in both conditions showed the minimum yield. Based on the results, the maximum correlation coefficient was observed between harvest index and grain yield in both conditions, heat stress (r=0.77, p £0.01) and normal (r=0.91, p £0.01), suggesting the considerable role of this trait for evaluating the barley genotypes in heat stress experiments. 6-row barley genotype had superiority for most of traits in compare to 2-row genotypes and finally gave more grain yield in both conditions.

 
Keyword(s): HEAT STRESS, HEAT TOLERANCE, 2-ROW BARLEY, 6-ROW BARLEY
 
 
References: 
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APA: Copy

ORAKI, A., & SIAHPOOSH, M., & RAHNAMA, A., & LAKZADEH, I. (2016). THE EFFECTS OF TERMINAL HEAT STRESS ON YIELD, YIELD COMPONENTS AND SOME MORPHO-PHENOLOGICAL TRAITS OF BARLEY GENOTYPES (HORDEUM VULGARE L.) IN AHVAZ WEATHER CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 47(1), 29-40. https://www.sid.ir/en/journal/ViewPaper.aspx?id=507909



Vancouver: Copy

ORAKI AKRAM, SIAHPOOSH MOHAMMAD REZA, RAHNAMA AFRASYAB, LAKZADEH IRAJ. THE EFFECTS OF TERMINAL HEAT STRESS ON YIELD, YIELD COMPONENTS AND SOME MORPHO-PHENOLOGICAL TRAITS OF BARLEY GENOTYPES (HORDEUM VULGARE L.) IN AHVAZ WEATHER CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES). 2016 [cited 2021August05];47(1):29-40. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=507909



IEEE: Copy

ORAKI, A., SIAHPOOSH, M., RAHNAMA, A., LAKZADEH, I., 2016. THE EFFECTS OF TERMINAL HEAT STRESS ON YIELD, YIELD COMPONENTS AND SOME MORPHO-PHENOLOGICAL TRAITS OF BARLEY GENOTYPES (HORDEUM VULGARE L.) IN AHVAZ WEATHER CONDITIONS. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), [online] 47(1), pp.29-40. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=507909.



 
 
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