Dormancy and germination requirements were investigated in seeds of Tulipa kaufmanniana Regel (Li... more Dormancy and germination requirements were investigated in seeds of Tulipa kaufmanniana Regel (Liliaceae). The present study was conducted to study the dormancy breaking treatment in Tulip seed. An experiment was conducted with four replications and three treatments including: 3 different stratification periods (0, 5 and 7 weeks), varying concentrations of GA 3 (0, 250 and 500ppm) and 4 levels of KNO 3 (0, 0.1, 0.2 and 0.3% v/v). Germination percentage and mean germination time were significantly enhanced by treating seeds with mentioned treatments compared with the untreated control seeds. It was concluded that stratification for 7 weeks was more effective treatment on studied traits than 5 weeks. Moreover, cold stratification was a better treatment on breaking seed dormancy of waterlily seeds than GA 3 and KNO 3 treatments. Applying 500ppm concentration of GA 3 and 0.1 of KNO 3 after stratification resulted in higher germination in waterlily dormant seeds.
To investigate late toxic effects of sulfur mustard (SM) on the upper and lower respiratory tract... more To investigate late toxic effects of sulfur mustard (SM) on the upper and lower respiratory tracts of Iranian veterans, 43 male veterans with more than 25% disability due to SM poisoning in 20-25 years after exposure, were studied. Direct laryngoscopy, pulmonary function tests, arterial blood gasses and pH, computed tomography of sinuses and lungs were investigated. The patients were aged 50.6 (8.9 SD) years with body mass index (BMI) of 26.6 (4.0) and disability of 53.2 (17.0%). The common findings of the upper respiratory tract were dysphonia (79.1%), post-nasal discharge (PND; 41.9%), lower larynx position (30.2%), limitation of vocal cords (25.6%) and mucosal inflammation of larynx (14.8%). The common lower respiratory diseases were diagnosed as chronic obstructive respiratory disease (84%), bronchiectasis (44.1%) and lung fibrosis (7.7%). Severity of disability was negatively correlated with BMI (p = 0.032), spirometric parameters (p < 0.001) and oxygen saturation (p < 0.001), but positively correlated with low-density lipoproteins (LDL <0.010), blood pressure (p = 0.008), diabetes mellitus (p < 0.001), wheezing (p = 0.0043) and bronchiectasis (p < 0.001). Delayed toxic effects of SM in upper and lower respiratory tracts were mostly inflammatory and infectious complications, SM-induced disabilities were significantly correlated with risk factors such as diabetes mellitus, hypertension, LDL and lower-respiratory complications.
1University of Tehran, Faculty of Agricultural Engineering and Technology, College of Agriculture... more 1University of Tehran, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, Department of Agronomy and Plant Breeding, Karaj, Islamic Republic of Iran; hosseinroohi@alumni.ut.ac.ir 2University of Bu-Ali Sina, Faculty of Agriculture, ...
Not Sci Biol 2 (4) 2010, 59-63 Print ISSN 2067-3205; Electronic 2067-3264 ... Effects of Osmoprim... more Not Sci Biol 2 (4) 2010, 59-63 Print ISSN 2067-3205; Electronic 2067-3264 ... Effects of Osmopriming on Germination and Vigour Traits ... Hossein Reza ROUHI1) , Reza Tavakkol AFSHARI1) , Seyed Amir ... 1) University of Tehran, Department of Agronomy and Plant Breeding; Iran; ...
Dormancy and germination requirements were investigated in seeds of Tulipa kaufmanniana Regel (Li... more Dormancy and germination requirements were investigated in seeds of Tulipa kaufmanniana Regel (Liliaceae). The present study was conducted to study the dormancy breaking treatment in Tulip seed. An experiment was conducted with four replications and three treatments including: 3 different stratification periods (0, 5 and 7 weeks), varying concentrations of GA 3 (0, 250 and 500ppm) and 4 levels of KNO 3 (0, 0.1, 0.2 and 0.3% v/v). Germination percentage and mean germination time were significantly enhanced by treating seeds with mentioned treatments compared with the untreated control seeds. It was concluded that stratification for 7 weeks was more effective treatment on studied traits than 5 weeks. Moreover, cold stratification was a better treatment on breaking seed dormancy of waterlily seeds than GA 3 and KNO 3 treatments. Applying 500ppm concentration of GA 3 and 0.1 of KNO 3 after stratification resulted in higher germination in waterlily dormant seeds.
To investigate late toxic effects of sulfur mustard (SM) on the upper and lower respiratory tract... more To investigate late toxic effects of sulfur mustard (SM) on the upper and lower respiratory tracts of Iranian veterans, 43 male veterans with more than 25% disability due to SM poisoning in 20-25 years after exposure, were studied. Direct laryngoscopy, pulmonary function tests, arterial blood gasses and pH, computed tomography of sinuses and lungs were investigated. The patients were aged 50.6 (8.9 SD) years with body mass index (BMI) of 26.6 (4.0) and disability of 53.2 (17.0%). The common findings of the upper respiratory tract were dysphonia (79.1%), post-nasal discharge (PND; 41.9%), lower larynx position (30.2%), limitation of vocal cords (25.6%) and mucosal inflammation of larynx (14.8%). The common lower respiratory diseases were diagnosed as chronic obstructive respiratory disease (84%), bronchiectasis (44.1%) and lung fibrosis (7.7%). Severity of disability was negatively correlated with BMI (p = 0.032), spirometric parameters (p < 0.001) and oxygen saturation (p < 0.001), but positively correlated with low-density lipoproteins (LDL <0.010), blood pressure (p = 0.008), diabetes mellitus (p < 0.001), wheezing (p = 0.0043) and bronchiectasis (p < 0.001). Delayed toxic effects of SM in upper and lower respiratory tracts were mostly inflammatory and infectious complications, SM-induced disabilities were significantly correlated with risk factors such as diabetes mellitus, hypertension, LDL and lower-respiratory complications.
1University of Tehran, Faculty of Agricultural Engineering and Technology, College of Agriculture... more 1University of Tehran, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, Department of Agronomy and Plant Breeding, Karaj, Islamic Republic of Iran; hosseinroohi@alumni.ut.ac.ir 2University of Bu-Ali Sina, Faculty of Agriculture, ...
Not Sci Biol 2 (4) 2010, 59-63 Print ISSN 2067-3205; Electronic 2067-3264 ... Effects of Osmoprim... more Not Sci Biol 2 (4) 2010, 59-63 Print ISSN 2067-3205; Electronic 2067-3264 ... Effects of Osmopriming on Germination and Vigour Traits ... Hossein Reza ROUHI1) , Reza Tavakkol AFSHARI1) , Seyed Amir ... 1) University of Tehran, Department of Agronomy and Plant Breeding; Iran; ...
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