Evaluation of 20 Barley Genotypes under the Terminal Drought Condition
To study the response of barley genotypes to terminal drought stress, 20 promising barley genotypes were compared under two stress and non-stress conditions, in a split plot experiment based on randomized complete block design with three replications at the Agricultural Research Center of Southern K...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Islamic Azad University, Tabriz Branch
2013-11-01
|
| Series: | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| Subjects: | |
| Online Access: | http://jcep.iaut.ac.ir/article_516837_f507aff1eb5c0d16e579950d089a6796.pdf |
| _version_ | 1819277446278545408 |
|---|---|
| author | H. Tajalli S.G. Mousavi R. Baradaran M.H. Saberi E. Arazmjoo |
| author_facet | H. Tajalli S.G. Mousavi R. Baradaran M.H. Saberi E. Arazmjoo |
| author_sort | H. Tajalli |
| collection | DOAJ |
| description | To study the response of barley genotypes to terminal drought stress, 20 promising barley genotypes were compared under two stress and non-stress conditions, in a split plot experiment based on randomized complete block design with three replications at the Agricultural Research Center of Southern Khorasan during 2007-2008 growing season. Drought stress levels consist of control (complete irrigation) and irrigation up to the 50% heading stage. Results showed that skipping irrigation at 50% heading stage resulted in 14.64 reduction in seed yield and 8.12 percent in biological yield compared to control condition. Spike length, plant height and flag leaf area in drought condition decreased by 12.4, 7.65 and 24 percent against complete irrigation treatment. Also, irrigation up to the 50% heading caused increasing of chlorophyll index and cell membrane permeability and declining of relative water content of flag leaf. There weren’t any significant differences among barley genotypes in terms of biological yield but the highest and lowest grain yield achieved from genotype number 18 (5997.2 kg.ha-1) and genotype number 16 (3420.8 kg.ha-1) respectively. Cultivar number 5 and 13 had the highest rate of chlorophyll index, and also number 8 had the highest relative water content (80.7%) in flag leaf. Based on the results of this study, genotypes number 18 and 20 had higher yields in both normal and drought stress conditions. |
| first_indexed | 2024-12-23T23:56:14Z |
| format | Article |
| id | doaj.art-bb79379109a4476a8565e07e1acdbd36 |
| institution | Directory Open Access Journal |
| issn | 2538-1822 2476-731X |
| language | fas |
| last_indexed | 2024-12-23T23:56:14Z |
| publishDate | 2013-11-01 |
| publisher | Islamic Azad University, Tabriz Branch |
| record_format | Article |
| series | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| spelling | doaj.art-bb79379109a4476a8565e07e1acdbd362022-12-21T17:25:15ZfasIslamic Azad University, Tabriz BranchIkufīziyuluzhī-i Giyāhān-i Zirā̒ī2538-18222476-731X2013-11-0171(25) بهار91104516837Evaluation of 20 Barley Genotypes under the Terminal Drought ConditionH. Tajalli0S.G. Mousavi1R. Baradaran2M.H. Saberi3E. Arazmjoo4Researcher, Agricultural and Natural Resources Research Center, South Khorasan, IranStaff Member, Birjand Branch, Islamic Azad University, Birjand, IranStaff Member, Birjand Branch, Islamic Azad University, Birjand, IranStaff Member, Agricultural and Natural Resources Research Center, South Khorasan, IranMs.c. of Agronomy, Agricultural and Natural Resources Research Center, South Khorasan, IranTo study the response of barley genotypes to terminal drought stress, 20 promising barley genotypes were compared under two stress and non-stress conditions, in a split plot experiment based on randomized complete block design with three replications at the Agricultural Research Center of Southern Khorasan during 2007-2008 growing season. Drought stress levels consist of control (complete irrigation) and irrigation up to the 50% heading stage. Results showed that skipping irrigation at 50% heading stage resulted in 14.64 reduction in seed yield and 8.12 percent in biological yield compared to control condition. Spike length, plant height and flag leaf area in drought condition decreased by 12.4, 7.65 and 24 percent against complete irrigation treatment. Also, irrigation up to the 50% heading caused increasing of chlorophyll index and cell membrane permeability and declining of relative water content of flag leaf. There weren’t any significant differences among barley genotypes in terms of biological yield but the highest and lowest grain yield achieved from genotype number 18 (5997.2 kg.ha-1) and genotype number 16 (3420.8 kg.ha-1) respectively. Cultivar number 5 and 13 had the highest rate of chlorophyll index, and also number 8 had the highest relative water content (80.7%) in flag leaf. Based on the results of this study, genotypes number 18 and 20 had higher yields in both normal and drought stress conditions.http://jcep.iaut.ac.ir/article_516837_f507aff1eb5c0d16e579950d089a6796.pdfCellular Membrane PermeabilityChlorophyll IndexRelative water contentStopping Irrigation |
| spellingShingle | H. Tajalli S.G. Mousavi R. Baradaran M.H. Saberi E. Arazmjoo Evaluation of 20 Barley Genotypes under the Terminal Drought Condition Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī Cellular Membrane Permeability Chlorophyll Index Relative water content Stopping Irrigation |
| title | Evaluation of 20 Barley Genotypes under the Terminal Drought Condition |
| title_full | Evaluation of 20 Barley Genotypes under the Terminal Drought Condition |
| title_fullStr | Evaluation of 20 Barley Genotypes under the Terminal Drought Condition |
| title_full_unstemmed | Evaluation of 20 Barley Genotypes under the Terminal Drought Condition |
| title_short | Evaluation of 20 Barley Genotypes under the Terminal Drought Condition |
| title_sort | evaluation of 20 barley genotypes under the terminal drought condition |
| topic | Cellular Membrane Permeability Chlorophyll Index Relative water content Stopping Irrigation |
| url | http://jcep.iaut.ac.ir/article_516837_f507aff1eb5c0d16e579950d089a6796.pdf |
| work_keys_str_mv | AT htajalli evaluationof20barleygenotypesundertheterminaldroughtcondition AT sgmousavi evaluationof20barleygenotypesundertheterminaldroughtcondition AT rbaradaran evaluationof20barleygenotypesundertheterminaldroughtcondition AT mhsaberi evaluationof20barleygenotypesundertheterminaldroughtcondition AT earazmjoo evaluationof20barleygenotypesundertheterminaldroughtcondition |