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Prof. Nawroz Tahir
University of Sulaimani, College of Agricultural Engineering Sciences

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0 Molecular Biology
0 BREEDING
0 medicinal plants
0 Phytochemcials

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Preprint content
Published: 17 August 2021
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Few attempts have been made in Iraq to investigate the genetic variation in barley accessions using molecular markers. In this context, the objective of this study was to investigate the diversity of 59 accessions of barley using inter simple sequence repeat (ISSR), conserved DNA-derived polymorphism (CDDP), and start codon targeted (SCoT) markers. A total of 391 amplified polymorphic bands were generated using 45 ISSR, 9 CDDP, and 12 SCoT primers that produced 255, 35, and 101 polymorphic bands, respectively. The average values of gene diversity were 0.77, 0.67, and 0.81 for ISSR, CDDP, and SCoT markers, respectively. The mean values of polymorphism information content for ISSR, CDDP, and SCoT markers were 0.74, 0.63, and 0.80 respectively. The discrimination power of the three approaches for assessing allelic diversity in barley accessions was as follows: SCoT > ISSR > CDDP. The barley accessions were classified and clustered into two main groups. Molecular variance analysis revealed 15, 9, and 14% variability among populations with ISSR, CDDP, and SCoT markers, respectively. The mantel test results revealed that the three molecular marker matrices had significant positive relationships. The SCoT markers have the potential to be useful tools for selecting appropriate parents for breeding program.

ACS Style

Djshwar Dhahir Lateef; Kamil Mahmud Mustafa; Nawroz Abdul-Razzak Tahir. Genomic variation and genetic structure profile of Iraqi barley accessions using ISSR and arbitrary functional gene-based molecular markers. 2021, 1 .

AMA Style

Djshwar Dhahir Lateef, Kamil Mahmud Mustafa, Nawroz Abdul-Razzak Tahir. Genomic variation and genetic structure profile of Iraqi barley accessions using ISSR and arbitrary functional gene-based molecular markers. . 2021; ():1.

Chicago/Turabian Style

Djshwar Dhahir Lateef; Kamil Mahmud Mustafa; Nawroz Abdul-Razzak Tahir. 2021. "Genomic variation and genetic structure profile of Iraqi barley accessions using ISSR and arbitrary functional gene-based molecular markers." , no. : 1.

Agriculture
Published: 01 January 2021 in All Life
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Among abiotic stresses, drought influences plant growth and productivity, and plant stress responses depend on stress intensity and genotype. The effects of simulated drought stress on germination parameters were tested for tolerance and sensitivity in 59 barley accessions from all regions of Iraq and phenotypic, physiological, and biochemical responses associated with drought stress were investigated. Stress treatments with polyethylene glycol (PEG) reduced the germination rate and dramatically delayed the development of the seedlings. Significant changes in the physiological and biochemical profiles in barley accessions were observed. A smaller reduction in water absorption of seeds was observed across all accessions, while all biochemical characteristics except total flavonoid content were increased with the increase in water deficiency in most accessions. Among the 59 barley accessions, ABN was the most tolerant accession, while Black-Garmiyan was the most drought-prone. Significant relationships were found between most trait pairs, with 24 significant associations under no stress, 39 significant correlations under the 10.25% PEG treatment, and 60 significant correlations under the 20.50% PEG treatment. According to the key importance analysis, seed water uptake, total phenol content, soluble sugar content, and catalase are classified as relative significance traits for germination percentage, root and shoot length under stress conditions.

ACS Style

Djshwar Lateef; Kamil Mustafa; Nawroz Tahir. Screening of Iraqi barley accessions under PEG-induced drought conditions. All Life 2021, 14, 308 -332.

AMA Style

Djshwar Lateef, Kamil Mustafa, Nawroz Tahir. Screening of Iraqi barley accessions under PEG-induced drought conditions. All Life. 2021; 14 (1):308-332.

Chicago/Turabian Style

Djshwar Lateef; Kamil Mustafa; Nawroz Tahir. 2021. "Screening of Iraqi barley accessions under PEG-induced drought conditions." All Life 14, no. 1: 308-332.

Journal article
Published: 28 June 2020 in Applied Sciences
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Rice (Oryza sativa L.) is productively affected by different environmental factors, including biotic and abiotic stress. The objectives of this research were to evaluate the genetic distinction among Kurdish rice genotypes using the simple sequence repeats (SSRs) molecular markers and to perform in vitro tests to characterize the drought tolerance of six local rice genotypes. The polymorphic information content (PIC) varied from 0.38 to 0.84 with an average of 0.56. The genetic distance ranged from 0.33 to 0.88. Drought stress had a significant impact (p ≤ 0.05) on callus growth parameters. Enzymatic antioxidant systems were predicted and exhibited a significant variation. The findings revealed that proline levels increase in proportion to polyethylene glycol (PEG) concentrations. Kalar and Gwll Swr genotypes showed the worst performances in phenotypic and biochemical traits, while Choman and Shawre exhibited the best phenotypic and biochemical performances. A positive and substantial relationship between callus fresh weight (CFW) and callus dry weight (CDW) was found under stressful and optimized conditions. Callus induction (CI) was positively and significantly associated with the catalase activity (CAT) in all stressed treatments. Based on the results for callus growth and the biochemical parameters under stress conditions, a remarkable genotype distinction, based on the tolerance reaction, was noted as follows: PEG resistant > susceptible, Choman > Shawre > White Bazyan > Red Bazyan > Gwll Swr > Kalar. The CI and CAT characteristics were considered as reliable predictors of drought tolerance in rice genotypes.

ACS Style

Didar Rahim; Petr Kalousek; Nawroz Tahir; Tomáš Vyhnánek; Petr Tarkowski; Vaclav Trojan; Dana Abdulkhaleq; Ahmad Hama Ameen; Ladislav Havel. In Vitro Assessment of Kurdish Rice Genotypes in Response to PEG-Induced Drought Stress. Applied Sciences 2020, 10, 4471 .

AMA Style

Didar Rahim, Petr Kalousek, Nawroz Tahir, Tomáš Vyhnánek, Petr Tarkowski, Vaclav Trojan, Dana Abdulkhaleq, Ahmad Hama Ameen, Ladislav Havel. In Vitro Assessment of Kurdish Rice Genotypes in Response to PEG-Induced Drought Stress. Applied Sciences. 2020; 10 (13):4471.

Chicago/Turabian Style

Didar Rahim; Petr Kalousek; Nawroz Tahir; Tomáš Vyhnánek; Petr Tarkowski; Vaclav Trojan; Dana Abdulkhaleq; Ahmad Hama Ameen; Ladislav Havel. 2020. "In Vitro Assessment of Kurdish Rice Genotypes in Response to PEG-Induced Drought Stress." Applied Sciences 10, no. 13: 4471.

Original article
Published: 01 February 2020 in Journal of Soil Sciences and Agricultural Engineering
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An analysis was completed in the field to consider the impact of potassium (K) and sulfur (S) on potato for ideal yield, quality, and supplement use effectiveness. Medicines included four degrees of potassium (0, 100, 200 and 300 kg K ha-1) and five degrees of sulfur (0, 50, 100, 150 and 200 kg S ha-1) in Split plot configuration having three replications in Kanipanka investigate station, Sulaimani Governorate, Iraqi Kurdistan district under inundated condition. The potassium and sulfur collaboration effectsly affected vegetative development. Leaf territory, No. of stem and secured territory per plant indicated a critical effect of potassium and sulfur application. There was noteworthy negative communication among potassium and sulfur. The all out tuber yield expanded on a normal by 17.5 and 37.63 percent at 200 kg K ha-1 and 300 kg K ha-1, individually, when contrasted with no potassium application. Sulfur application significantly affected all out tuber yield, appropriate yield for showcasing and non-reasonable yield for promoting, non-reasonable yield for advertising to add up to yield, tuber number and tuber weight. The all out tuber yield and appropriate yield for advertising are expanded with expanding sulfur application. Concerning the information of compound substance tuber of potato demonstrated that the blend of potassium and sulfur, it saw that most noteworthy percent of K, P, N, Ca and protein substance were 1.60, 0.44, 1.47, 2.84 and 9.19 % enrolled by 300 kg K ha-1 × 0 kg S ha-1, 0 kg K ha-1 × 100 kg S ha-1, 200 kg K ha-1 ×100 kg S ha-1, 300 kg K ha-1 ×100 kg S ha-1 and 200 kg K ha-1 × 200 kg S ha-1, individually.

ACS Style

Muhamad Tahsen Maruf; Nawroz Abdul-Razzak Tahir. Effect of Potassium and Sulfur-Containing Fertilizers on some Growth Parameters, Chemical Constituents, Protein and Yield of Potato (Solanum tuberosum L.) Binella Böhm 52 72 × Sirco Variety. Journal of Soil Sciences and Agricultural Engineering 2020, 11, 59 -65.

AMA Style

Muhamad Tahsen Maruf, Nawroz Abdul-Razzak Tahir. Effect of Potassium and Sulfur-Containing Fertilizers on some Growth Parameters, Chemical Constituents, Protein and Yield of Potato (Solanum tuberosum L.) Binella Böhm 52 72 × Sirco Variety. Journal of Soil Sciences and Agricultural Engineering. 2020; 11 (2):59-65.

Chicago/Turabian Style

Muhamad Tahsen Maruf; Nawroz Abdul-Razzak Tahir. 2020. "Effect of Potassium and Sulfur-Containing Fertilizers on some Growth Parameters, Chemical Constituents, Protein and Yield of Potato (Solanum tuberosum L.) Binella Böhm 52 72 × Sirco Variety." Journal of Soil Sciences and Agricultural Engineering 11, no. 2: 59-65.

Journal article
Published: 01 January 2019 in Applied Ecology and Environmental Research
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ACS Style

N A Tahir. PHYTOCHEMICAL, ANTIBACTERIAL, ANTIOXIDANT AND PHYTOTOXICITY SCREENING OF THE EXTRACTS COLLECTED FROM THE FRUIT AND ROOT OF WILD MT. ATLAS MASTIC TREE (PISTACIA ATLANTICA SUBSP. KURDICA). Applied Ecology and Environmental Research 2019, 17, 4417 -4429.

AMA Style

N A Tahir. PHYTOCHEMICAL, ANTIBACTERIAL, ANTIOXIDANT AND PHYTOTOXICITY SCREENING OF THE EXTRACTS COLLECTED FROM THE FRUIT AND ROOT OF WILD MT. ATLAS MASTIC TREE (PISTACIA ATLANTICA SUBSP. KURDICA). Applied Ecology and Environmental Research. 2019; 17 (2):4417-4429.

Chicago/Turabian Style

N A Tahir. 2019. "PHYTOCHEMICAL, ANTIBACTERIAL, ANTIOXIDANT AND PHYTOTOXICITY SCREENING OF THE EXTRACTS COLLECTED FROM THE FRUIT AND ROOT OF WILD MT. ATLAS MASTIC TREE (PISTACIA ATLANTICA SUBSP. KURDICA)." Applied Ecology and Environmental Research 17, no. 2: 4417-4429.

Journal article
Published: 01 January 2019 in Allelopathy Journal
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ACS Style

N A. Tahir; H A. Azeez; H. H. Hama Amin; J. S. Rashid; D A. Omer. Antibacterial activity and allelopathic effects of extracts from leaf, stem and bark of Mt. Atlas mastic tree (Pistacia atlantica subsp. kurdica) on crops and weeds. Allelopathy Journal 2019, 46, 121 -132.

AMA Style

N A. Tahir, H A. Azeez, H. H. Hama Amin, J. S. Rashid, D A. Omer. Antibacterial activity and allelopathic effects of extracts from leaf, stem and bark of Mt. Atlas mastic tree (Pistacia atlantica subsp. kurdica) on crops and weeds. Allelopathy Journal. 2019; 46 (1):121-132.

Chicago/Turabian Style

N A. Tahir; H A. Azeez; H. H. Hama Amin; J. S. Rashid; D A. Omer. 2019. "Antibacterial activity and allelopathic effects of extracts from leaf, stem and bark of Mt. Atlas mastic tree (Pistacia atlantica subsp. kurdica) on crops and weeds." Allelopathy Journal 46, no. 1: 121-132.

Journal article
Published: 01 May 2018 in Allelopathy Journal
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ACS Style

N.A. Tahir; K.O. Qader; H.A. Azeez; J.S. Rashid. Inhibitory allelopathic effects of Moringa oleifera Lamk plant extracts on wheat and Sinapis arvensis L. Allelopathy Journal 2018, 44, 53 -66.

AMA Style

N.A. Tahir, K.O. Qader, H.A. Azeez, J.S. Rashid. Inhibitory allelopathic effects of Moringa oleifera Lamk plant extracts on wheat and Sinapis arvensis L. Allelopathy Journal. 2018; 44 (1):53-66.

Chicago/Turabian Style

N.A. Tahir; K.O. Qader; H.A. Azeez; J.S. Rashid. 2018. "Inhibitory allelopathic effects of Moringa oleifera Lamk plant extracts on wheat and Sinapis arvensis L." Allelopathy Journal 44, no. 1: 53-66.

Short communication
Published: 25 December 2017 in Natural Product Research
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The chemical profile of the essential oil of callus and cell suspension cultures derivatives from stem and root of Hypericum triquetrifolium were explored by ITEX/GC-MS. The major constituents for stem derivatives were undecane (78.44%) and 2,4,6-trimethyl-octane (9.74%) for fresh calli, 2,4-dimethyl-benzaldehyde (46.94%), 2,3-dimethyl-undecane (28.39%), 2,4-dimethyl-1-hexene (10.17%), 1,2-oxolinalool (3.64%) and limonene (3.55%) for dry calli and undecane (61.24%), octane, 2,4,6-trimethyl- (16.73%), nonane, 3-methyl-(3.74%), 2,5-diphenyl-benzoquinone (3.70%) and limonene (3.60%) for cell suspension. However, for root derivatives, the dominated components were: undecane (49.94%), eucalyptol (12.07%), limonene (9.98%), toluene (9.03%) and 3-methyl-nonane (4.29%) for fresh calli, 2,4-dimethyl-benzaldehyde (29.80%), 1,1-dimethylethyl-cyclohexane (14.99%), 3-methyl-pentanal (14.99%), undecane (10.04%), beta-terpinyl acetate (8.60%), 1,2-oxolinalool (6.27%) and 2-pentyl-furan (4.09%) for dry calli, undecane (52.38%), 2,4,6-trimethyl-octane (13.81%), 3-methyl-nonane (5.73%), toluene (4.82%) and limonene (4.57%) for cell suspension derivative in root. The attained outcomes indicated that the alkane, aldehyde and monoterpene fractions dominated the chemical composition of essential oils.

ACS Style

Nawroz Abdul-Razzak Tahir; Hoshyar Abdullah Azeez; Kadhm Abdullah Muhammad; Shewa Anwer Faqe; Dlshad Ali Omer. Exploring of bioactive compounds in essential oil acquired from the stem and root derivatives of Hypericum triquetrifolium callus cultures. Natural Product Research 2017, 33, 1504 -1508.

AMA Style

Nawroz Abdul-Razzak Tahir, Hoshyar Abdullah Azeez, Kadhm Abdullah Muhammad, Shewa Anwer Faqe, Dlshad Ali Omer. Exploring of bioactive compounds in essential oil acquired from the stem and root derivatives of Hypericum triquetrifolium callus cultures. Natural Product Research. 2017; 33 (10):1504-1508.

Chicago/Turabian Style

Nawroz Abdul-Razzak Tahir; Hoshyar Abdullah Azeez; Kadhm Abdullah Muhammad; Shewa Anwer Faqe; Dlshad Ali Omer. 2017. "Exploring of bioactive compounds in essential oil acquired from the stem and root derivatives of Hypericum triquetrifolium callus cultures." Natural Product Research 33, no. 10: 1504-1508.