Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG)
Drought tolerance of 18 advanced lines durum wheat were evaluated in a randomized complete block design with four replications under dryland and complementary irrigation conditions in GachsaranAgriculturalResearchCenter at 2016-2017. In this study, traits like days to spike formation, days to maturi...
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| Format: | Article |
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Islamic Azad University, Tabriz Branch
2020-03-01
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| Series: | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
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| Online Access: | http://jcep.iaut.ac.ir/article_671640_aa2d8aecab5e6dd83067fa83447de991.pdf |
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| author | Sahar Tadili Ali Asghari Rahmatollah Karimizadeh Omid Sofalian Hamidreza Mohammaddoust Chamanabad |
| author_facet | Sahar Tadili Ali Asghari Rahmatollah Karimizadeh Omid Sofalian Hamidreza Mohammaddoust Chamanabad |
| author_sort | Sahar Tadili |
| collection | DOAJ |
| description | Drought tolerance of 18 advanced lines durum wheat were evaluated in a randomized complete block design with four replications under dryland and complementary irrigation conditions in GachsaranAgriculturalResearchCenter at 2016-2017. In this study, traits like days to spike formation, days to maturity, plant height, peduncle length, spike length, 1000 seed weight, seed yield, spike number, spike number per m<sup>2</sup>, canopy temperature reduction of two stages of spike and seed filling, rate of greenness at two stages of spike and grain filling, were measured. Analysis of variance showed that there were significant differences among lines under study for days to spike formation, plant height, peduncle length, spike length, 1000 seed weight, seed yield, crop score, number of seeds per spike, temperature reductions of canopy at two spike stages seed and greenery content in two stages of spike and grain filling were significantly different. Mean comparisons showed that lines 4, 9, 13, 15, 16 and 17 were better than other lines in most traits. Evaluation of sensitive and tolerant lines according to tolerance index (Ti) showed that lines 1, 2, 4, 6, 9, 15 and 17, had high Ti index in most traits, were tolerant. Selection for superior lines, based on SIIG and selection of ideal genotype (SIIG) index, were performed. The results of variance analysis of traits based on Ti index showed that difference among lines in terms of 1000 seed weight, reduction of canopy temperature at grain filling stage, seed yield, grain filling period, chlorophyll content at both clustering and grain filling stage, days to reach and number of days to clustering were significant at 1% probability level. Lines 4, 5, 9 and 15 were the highest values of this index and were suitable for growing under dryland conditions. Lines 7, 8, 10 and 14 having lowest value of the SIIG index were sensitive to rainfed condition. The results of this ranking are similar to the results of cluster decomposition based on Ti index. |
| first_indexed | 2024-12-13T03:37:49Z |
| format | Article |
| id | doaj.art-454941ffedb34e0aa59c1f229a89d2fe |
| institution | Directory Open Access Journal |
| issn | 2538-1822 2476-731X |
| language | fas |
| last_indexed | 2024-12-13T03:37:49Z |
| publishDate | 2020-03-01 |
| publisher | Islamic Azad University, Tabriz Branch |
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| series | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| spelling | doaj.art-454941ffedb34e0aa59c1f229a89d2fe2022-12-22T00:01:00ZfasIslamic Azad University, Tabriz BranchIkufīziyuluzhī-i Giyāhān-i Zirā̒ī2538-18222476-731X2020-03-0114بهار 1 (53)456210.30495/jcep.2020.671640671640Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG)Sahar Tadili0Ali Asghari1Rahmatollah Karimizadeh2Omid Sofalian3Hamidreza Mohammaddoust Chamanabad4MS.c. Student, Plant Breeding, University of Mohaghegh Ardabili, Ardabil, IranAssociate Professor, Department of Agronomy and Plant Breeding, University of Mohaghegh Ardabili, Ardabil, IranAssistant Professors, Dryland Agricultural Research Institute,Agricultural Research, Education and Extension Organization (AREEO), Ghachsaran, IranProfessor, Department of Agronomy and Plant Breeding, University of Mohaghegh Ardabili, Ardabil, IranProfessor, Department of Agronomy and Plant Breeding, University of Mohaghegh Ardabili, Ardabil, IranDrought tolerance of 18 advanced lines durum wheat were evaluated in a randomized complete block design with four replications under dryland and complementary irrigation conditions in GachsaranAgriculturalResearchCenter at 2016-2017. In this study, traits like days to spike formation, days to maturity, plant height, peduncle length, spike length, 1000 seed weight, seed yield, spike number, spike number per m<sup>2</sup>, canopy temperature reduction of two stages of spike and seed filling, rate of greenness at two stages of spike and grain filling, were measured. Analysis of variance showed that there were significant differences among lines under study for days to spike formation, plant height, peduncle length, spike length, 1000 seed weight, seed yield, crop score, number of seeds per spike, temperature reductions of canopy at two spike stages seed and greenery content in two stages of spike and grain filling were significantly different. Mean comparisons showed that lines 4, 9, 13, 15, 16 and 17 were better than other lines in most traits. Evaluation of sensitive and tolerant lines according to tolerance index (Ti) showed that lines 1, 2, 4, 6, 9, 15 and 17, had high Ti index in most traits, were tolerant. Selection for superior lines, based on SIIG and selection of ideal genotype (SIIG) index, were performed. The results of variance analysis of traits based on Ti index showed that difference among lines in terms of 1000 seed weight, reduction of canopy temperature at grain filling stage, seed yield, grain filling period, chlorophyll content at both clustering and grain filling stage, days to reach and number of days to clustering were significant at 1% probability level. Lines 4, 5, 9 and 15 were the highest values of this index and were suitable for growing under dryland conditions. Lines 7, 8, 10 and 14 having lowest value of the SIIG index were sensitive to rainfed condition. The results of this ranking are similar to the results of cluster decomposition based on Ti index.http://jcep.iaut.ac.ir/article_671640_aa2d8aecab5e6dd83067fa83447de991.pdfdroughtdurum wheatsiig indexti indextolerant line |
| spellingShingle | Sahar Tadili Ali Asghari Rahmatollah Karimizadeh Omid Sofalian Hamidreza Mohammaddoust Chamanabad Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG) Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī drought durum wheat siig index ti index tolerant line |
| title | Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG) |
| title_full | Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG) |
| title_fullStr | Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG) |
| title_full_unstemmed | Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG) |
| title_short | Evaluation of Drought Stress Tolerance in Advanced Lines Durum Wheat Using the Selection Index of Ideal Genotype (SIIG) |
| title_sort | evaluation of drought stress tolerance in advanced lines durum wheat using the selection index of ideal genotype siig |
| topic | drought durum wheat siig index ti index tolerant line |
| url | http://jcep.iaut.ac.ir/article_671640_aa2d8aecab5e6dd83067fa83447de991.pdf |
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