In order investigate the effect of salinity and selenium on seed germination of three medicinal plants dragons head, alyssum and chicory, this study was performed as a factorial experiment based on a complete randomized design with two... more
In order investigate the effect of salinity and selenium on seed germination of three medicinal plants dragons head, alyssum and chicory, this study was performed as a factorial experiment based on a complete randomized design with two factors including different levels of salinity and selenium in three replications. The first factor included 0, 2, 4, and 8 mM NaCl and the second factor was 0, 5, 10, and 20 mg L-1 sodium selenate levels. Unlike selenium, salinity reduced germination percentage, germination characteristics and initial growth in all three medicinal plants. The germination percentage of chicory was 40%, alyssum was 49.1% and dragons head was 52.5%, which indicates that chicory is more sensitive to salinity stress, while dragons head showed more tolerance to salinity stress. With increasing selenium concentration, seedling length in all three medicinal plants increased compared to the control. The highest seedling length (20 mm) was observed in treatment 20 mg L-1 sodium selenate with a concentration of 8 mM NaCl in alyssum. The lowest seedling length was in chicory (6.2 mm) and in 0 mg L-1 sodium selenate treatment with 8 mM NaCl. The use of selenium can improve germination characteristics and to some extent reduce the effects of salinity stress. In general, it can be concluded that selenium (at the level of 20 mg L-1 of sodium selenate) can increase seed germination and seedling growth of all three medicinal plants under salinity stress.
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Quinoa has attracted a lot of attention in recent years due to its low ecological needs and rich nutritional value. Therefore, the variability of germination components to temperature and determination of cardinal temperatures were... more
Quinoa has attracted a lot of attention in recent years due to its low ecological needs and rich nutritional value. Therefore, the variability of germination components to temperature and determination of cardinal temperatures were performed by seed germination test at different constant temperatures from -1 to 45°C.The results of the dent-like model showed that the base temperature and ceiling temperature of quinoa were -03.04 and 45.45°C, respectively, and the optimum temperature was from 20 to 35°C. To investigation the effect of salinity and drought stress on germination at 25°C, the seeds were exposed to osmotic potentials from 0 to -28 bar, which were made of sodium chloride (NaCl) and polyethylene glycol (PEG), respectively, to induce stresses. The results showed that the reduction of osmotic potential up to -12 bar was not able to significantly reduce the germination components compared to normal conditions. However, with decreasing osmotic potential to -18 and -24 bar, the germination percentage decreased significantly. The germination was completely stopped at -24 bar of drought-induced, while 24% germination was observed at the same point of the salinity-induced osmotic potential. Therefore, seed germination capacity under salinity-induced stress was more tolerant than drought-induced stress at all levels of osmotic potentials. Most likely, due to the fact that quinoa is halophyte, by absorbing the ionic elements of salt, required for the maintenance of the cell turgor, which concurrent increase in cytosolic osmolality. Thus, this species has a great potential for distribution to other areas such as provinces with dry climate.
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Seed deterioration is one of the factors reducing seed viability and vigor. In order to investigate the effect of osmopriming on seed vigor enhancement and seedling enzyme activities, a factorial experiment was conducted based on... more
Seed deterioration is one of the factors reducing seed viability and vigor. In order to investigate the effect of osmopriming on seed vigor enhancement and seedling enzyme activities, a factorial experiment was conducted based on completely randomized design with four replications in the laboratory and greenhouse of Research Institute of Forests and Rangelands, Tehran, Iran in 2015. Experimental factors were four sainfoin species as (Onobrichis cristagalli, O. micoxchi, O. sintensii and O. vicifolia), three levels of aged seeds using accelerated ageing techniques (41°C, 98% of RH for 48 and 72h and control) and five priming treatments including hydropriming (control) and osmopriming by application of PEG (0,-0.3,-0.6,-0.9 and-1.2 Mpa). Data were collected for germination percent, rate of germination, root length, shoot length, vigor index, seedling weight and the variability in the activities of three antioxidant enzymes as superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD). Results showed that seed accelerated aging decreased germination traits in all of sainfoin species. Priming by seed aging interaction effect was significant for most of traits. The O.vicifolia had higher mean values for germination traits in deteriorated seeds. The result indicating that application of PEG (-0.6Mpa and-1.2 Mpa) in greenhouse had improved seedling growth as root and shoot length in all of the species. Measurement of enzymatic activity showed that the activities of antioxidant enzymes were decreasing in aged seeds of sainfoin. However, application of PEG (-0.6Mpa) had improved enzymatic activity in aged seeds. It was concluded that osmopriming may enhance seed vigor, seedling growth and enzyme activities in deteriorated seed of sainfoin.
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An experiment based on CRD design with three replications was conducted in 2014 year, in Ferdowsi University of Mashhad, Iran. The experimental treatments included 7 types of eco-friendly inputs: Humic acid, Fulvic acid, Nitroxin... more
An experiment based on CRD design with three replications was conducted in 2014 year, in Ferdowsi University of Mashhad, Iran. The experimental treatments included 7 types of eco-friendly inputs: Humic acid, Fulvic acid, Nitroxin (contains Azotobacter spp. And Azospirillum spp. Bacterias), Biophosphorous (contains Bacillus sp. And Pseudomonas sp. bacterias), Biosulfur (contains Thiobacillus spp. Bacteria), Glomus mosseae, Glomus intraradices, and control. The results showed that organic acids of humic and fulvic increased germination percentage 25 and 20% and germination rate 58 and 33% compared to control, respectively. Germination percentage was 20, 25, and 24% more in biofertilizers of nitroxin, biophosphorous and biosulfur compared to control, respectively and germination rate under application of this fertilizers added 59, 24, and 50% compared to control, respectively. Humic acid, fulvic acid, nitroxin, biophosphorous, biosulfur, Glomus mosseae and Glomus intraradices reduced mean germination time 33, 35, 38, 19, 36, 36, and 16% compared to control, respectively. The highest radicle and plumule length obtained in treatment of humic acid and the highest radicle to plumule length observed in treatment of biosulfur. Fulvic acid increased radicle and plumule dry weight 51 and 38% compared to control, respectively. The highest and the lowest radicle to plumule dry weight obtained in treatments of Glomus intraradices (0.199) and control (0.124), respectively.
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Salinity is one of the main limiting factors for seed germination and seedling growth. The use of nutrients in priming treatment is known as an effective way to improve seed yield In this regard, a factorial experiment was conducted in... more
Salinity is one of the main limiting factors for seed germination and seedling growth. The use of nutrients in priming treatment is known as an effective way to improve seed yield In this regard, a factorial experiment was conducted in the Khuzestan University of Agricultural Sciences and Natural Resources, based on randomize complete design with three replications. Priming treatment with nano and micro magnesium was performed at five concentrations zero, 50, 100, 200, 400 mg /litr, sepcratly. The durations of 12 and 24 hour were used for seed priming and salinity stress levels were zero, 50, 100, 150, 200, 250 mM made with sodium chloride. The results showed that increasing salinity stress declined hyssop seeds resistance and reduced the germination characteristics of this plant. Priming with 400 mg/litr magnesium microclate produced the highest germination percentage of 89.3%, average germination time of 5.9, seed vigor of 27.2 and root length of 24 mm. The highest germination rate (0.461 per day) and shoot length (18 mm) were observed in control and 400 mg/litr of nano-chelate, respectively. Results showed that nutrient seed priming with micochelate effectively alleviated salinity stress effects and improved seed germination properties compared to nanochelate magnesium. The optimum seed priming treatment obtained from 400 mg/litr micro chelate magnesium for 12 hours.
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This experiment was conducted at seed technology laboratory of Agricultural Sciences and Natural Resources University of Khuzestan, in 2018 with the to evaluate the effects of seed priming on cardinal temperatures and thermal time... more
This experiment was conducted at seed technology laboratory of Agricultural Sciences and Natural Resources University of Khuzestan, in 2018 with the to evaluate the effects of seed priming on cardinal temperatures and thermal time requirements of borage seed germination. The factorial experiment was arranged based on the randomized complete block design with three replications. Treatments were gibberellic acid (0 (distilled water as control), 100, 200, 400 mg/L-1), priming durations (6 and 12 hour) and seven levels of germination temperatures (5, 10, 15, 20, 25, 30 and 35 o C). Beta model, beta modified, dent-like and segmented were used to determine cardinal temperatures. Results showed that seed germination significantly increased at both priming durations of 6 and 12 hours with increasing of temperature and gibberellic acid concentrations. The highest seed germination was observed at 200 mg/L-1 gibberellic acid and 15 o C. Increase of gibberellic acid concentrations resulted higher thermal time requirements to complete 50% of germination in seed population. From the results, the beta model provided the best fit to evaluate cardinal temperatures of borage seeds. It is therefore, suggested that the base, optimum and celling temperatures of borage seeds are 0.51, 21.5 and 35.1 o C and influenced by application 200 mg/L-1 GA to 0.33, 23.5 and 35.8 o C.
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An experiment was done in the research laboratory of Tehran University in order to evaluate the effect of various conditions of seed storage on storability of rapeseed primed seed. The experiment factors have included the seed priming... more
An experiment was done in the research laboratory of Tehran University in order to evaluate the effect of various conditions of seed storage on storability of rapeseed primed seed. The experiment factors have included the seed priming using .05% lotion of KNO3 for 12 hours (primed and non primed with a this lotion)-package (vaccum packaging, nano and aluminium bags)-seed storage condition including: moisture content (5, 9, 13 and 17 %), temperatures (15 and 30) and storage periods (1, 2, 3, 4, 5 and 6 months). Analysis of variance demonstrated that with increasing the duration of storage and also with increasing seed content humidity amount and storage temperature, the seeds vigour would be decreased and in studing indexes, this decrease occurred in the first month of storage in 17% seed water content and 30 C temperature treatment and not in other onces, which shows that storage condition in more important in storage than other factors. For all indices, germination rate and percentage in rapeseed seed, there were significant differences in main, double and triple interaction effects at 1% probability level. The nano packagings is usually suggested as a suitable packaging to preserve the seeds in these condition.
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Moringa peregrine (Forssk) Fiori is one of the valuable forest species of tropical regions which has been endangered for many years due to its special vegetative characteristics as well as improper seed harvesting and regeneration. Aim in... more
Moringa peregrine (Forssk) Fiori is one of the valuable forest species of tropical regions which has been endangered for many years due to its special vegetative characteristics as well as improper seed harvesting and regeneration. Aim in this research is investigation of the effect of some pre-treatments on seed germination to increase germination rate and its growth and development. This experience was down with factorial by random total project and three repute in Bashagerd Hormozgan Experiment treatment (total 54) are gibberllic acid (0,200,400,600 ppm) and kno3 (0,1,2,3%) for 24 hours. We measured Maximum mean germination, speed, percentage and mean time of germination and power weight index and according variance analysis, gibberllic acid has effect on germination percentage, mean daily germination, power weight index and germination valuable. Results show that 400 ppm gibberllic acid and KNo3 2% has maximum effect on maximum mean percentage (2.5% compare control). Finally we found that gibberllic acid with 200 ppm and KNO3 concentration had the most effect on seed germination Moringa prigrina and cause to increase 70% growth compare control.
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" ایزاى بذر فناوری و علوم نطزیه " ضواره نهن، جلد 4 سهستاى ، 9911 (ظ 44-72) پضوهطی هقاله پیص اثز بزرسی و جیبزلیک اسید با بذر تیوار پیص سزهادهی خػوغیات بز جوانه سنی گونه گلی هزین... more
" ایزاى بذر فناوری و علوم نطزیه " ضواره نهن، جلد 4 سهستاى ، 9911 (ظ 44-72) پضوهطی هقاله پیص اثز بزرسی و جیبزلیک اسید با بذر تیوار پیص سزهادهی خػوغیات بز جوانه سنی گونه گلی هزین های (Salvia) پالیشدار هزین 9 توکل رضا ، افطاری 7 * ، جن سیبا ساد 9 اردکانی هحودرضا ، 4 نجات پزیسا ، هعنوی خواه 5 1. قوال تْطاى ٍاحس اؾالهی، آظاز زاًكگاُ ظضافت، گطٍُ زوتطی، 2. هكْس، فطزٍؾی زاًكگاُ وكاٍضظی، زاًكىسُ اؾتاز، ایطاى هكْس، 3. خٌگل تحمیمات هؤؾؿِ اؾتاز وكَض هطاتـ ٍ ّا ایطاى تْطاى، ، 4. وطج ٍاحس اؾالهی آظاز زاًكگاُ وكاٍضظی زاًكىسُ اؾتاز ایطاى وطج، ، 5. قوال تْطاى ٍاحس اؾالهی آظاز زاًكگاُ ظضافت گطٍُ زاًكیاض ایطاى تْطاى، ، (تا ضید زضیافت : 23 / 02 / 1398 ؛ تاضید پصیطـ : 09 / 09 / 1398) چکیده پاؾد اضظیاتی خْت پػٍّف ایي خَاًِ ظًی گلی هطین گًَِ یاظزُ تصٍض (Salvia sp.) ٍ خیثطلیه اؾیس تا پطایویٌگ تِ ًؿثت پیف ؾطهازّی ؾال عی 1396 تحمیمات هؤؾؿِ زض خٌگل لالة زض ٍ پالت اؾپیلیت نَضت تِ ایطاى هطاتـ ٍ ّا تا تهازفی ً واهال عطح 4 قاّس، قاهل اؾتفازُ هَضز تیواضّای قس. اًدام تىطاض 2 اؾیس تا پطایویٌگ تیواض اظ ؾغح خیثطلیه 500 هیلی (عی لیتط زض گطم 24 ٍ 48 ٍ ؾافت) 2 تیواض اظ ؾغح پیف ؾطهازّی زهای زض 4 ؾاًتی زضخِ (گطاز 2 ٍ 4 ؾطفت ٍ زضنس تَز. ّفتِ) خَاًِ ظًی ضیكِ عَل ، چِ، ؾالِ عَل گًَِ فیعیَلَغیىی نفات فٌَاى تِ تصض تٌیِ قاذم ٍ چِ هست تِ تصٍض پطایویٌگ تا حانلِ، ًتایح اؾاؼ تط قسًس. هغالقِ هَضزًؾط ّای 24 خیثطلیه، اؾیس زض ؾافت هقٌی زاضای افعایف قاّس تِ ًؿثت آًْا اظ تطضؾی هَضز نفات ولیِ همازیط ت ایي اظ اؾتفازُ اها تَز؛ زاضی هست تِ یواض 48 هقٌی تغییط ؾثة ؾافت تِ ًؿثت فَق نفات زض زاضی زیگط، ؾَی اظ ًگطزیس. قاّس پیف ؾطهازّی هست تِ تصٍض 2 هقٌی افعایف ؾثة ًیع ّفتِ تیواض افوال تا هصوَض نفات وِ حالی زض قس؛ قاّس تِ ًؿثت فَق نفات زاض پیف ؾطهازّی هست تِ 4 هقٌی اذتالف قاّس، تِ ًؿثت ّفتِ فَق ًتایح ًىطزًس. پیسا یىسیگط تا آهاضی لحاػ تِ زاضی هی ًكاى الصوط تصٍض فیعیَلَغیىی ذَاب وِ آى ٍخَز تا زٌّس الماء عطیك اظ خَاًِ ظًی تٌؾین یه فٌَاى تِ خیثطلیه اؾیس ووه تا هی گیاّی ضقس وٌٌسُ تص خٌیي تا اؾیس تواؼ اظ حانل ؾَظاًٌسگی اثط اها تاقس، قىؿت لاتل تَاًس هست عی ٍض هی عَالًی ظهاى ذهَنیات تَاًس خَاًِ ظًی وِ آى ٍخَز تا ّوچٌیي زّس. واّف ضا تصٍض پیف ؾطهازّی َّضهَى ِ ًؿثت زض تغییط ایداز زلیل تِ تصٍض غلؾت افعایف ٍ زضًٍی ّای هی خیثطلیي ذهَنیات افعایف ؾثة تَاًس خَاًِ ظًی هقطو زض حس اظ تیف تصٍض اگط اها گطزز، تصٍض پیف ؾطهازّی گیطًس، لطاض خَاًِ ظًی هٌفی اثط زلیل تِ آًْا پیف ؾطهازّی تط آًعین فقالیت فقالیت قسى ون ً هتقالثا ٍ ّا تطای ًیاظ هَضز تیَؾٌتعی ٍ هتاتَلیؿوی ّای خَاًِ ظًی زاز. ًرَاّس ضخ ، کلیدی واصگاى : خیثطلیه، اؾیس گلی، هطین پیف ؾطهازّی نفات ، خَاًِ ظًی پطایویٌگ. ، Abstract This research was carried out to evaluate the germination response of eleven Salvia species to application of Gibberellic acid (GA3) and pre-chilling treatments in the Iran Research Institute of Forests and Rangelands during 2012. Germination responses of the seeds were investigated under control treatment, 2-levels of Gibberellic acid (GA3) treatments with 500 mg/L (for 24 and 48 hours) and 2-levels of pre-chilling treatments at 4°C (for 2 and 4 weeks). The germination percentage and rate, as the physiological traits of the species, were studied based on a completely randomized design with four replications. Based on the results, applying the Gibberellic acid (GA3) treatment for 24 hours increased both the germination percentages and rates as compared to control; but the treatment for 48 hours was insignificantly changed the two mentioned parameters comparing to control. On the other hand, the pre-chilling treatment of seeds for 2 weeks also caused a significant increase in the above parameters as compared to the control treatment; while they were insignificantly different from the control treatment by the use of pre-chilling treatment for 4 weeks.
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" ایران بذر فناوری و علوم نشریه " شماره نهم، جلد 4 زمستان ، 9911 (ص 62-99) مقاله پژوهشی تأثیر پیش بر بذر زیستی تیمارهای جوانه زنی و گیاهچه اولیه رشد زیره سبز ی (Cuminum cyminum L.)... more
" ایران بذر فناوری و علوم نشریه " شماره نهم، جلد 4 زمستان ، 9911 (ص 62-99) مقاله پژوهشی تأثیر پیش بر بذر زیستی تیمارهای جوانه زنی و گیاهچه اولیه رشد زیره سبز ی (Cuminum cyminum L.) خشکی تنش تحت پیری رامین 9 ، مرادی علی 6 * ، صالحی امین 6 ، بلوچی حمیدرضا 9
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" ایران بذر فناوری و علوم نشریه " شماره نهم، جلد 3 پاییز ، 9311 (ص 33-33) پژوهشی مقاله بررسی جوانه زنی گلرنگ بذر (Carthamus tinctorius L.) فرامان رقم ، تنش تحت آب کمبود دما تعیین و... more
" ایران بذر فناوری و علوم نشریه " شماره نهم، جلد 3 پاییز ، 9311 (ص 33-33) پژوهشی مقاله بررسی جوانه زنی گلرنگ بذر (Carthamus tinctorius L.) فرامان رقم ، تنش تحت آب کمبود دما تعیین و کاردینال های جوانه زنی هاشمی عباس 9 زاده شریف فرزاد ، 2 * امیری معالی رضا ، 3 افشاری توکل رضا ، 4
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" عل نشریه ایران بذر فناوری و وم " شماره نهم، جلد 3 پاییز ، 9311 (ص 19-91) پژوهشی مقاله تیواوره و سولفید دی کربن جیبرلیک، اسید اثر بررسی و خواب شکستن بر جوانه زنی مینی تیوبر... more
" عل نشریه ایران بذر فناوری و وم " شماره نهم، جلد 3 پاییز ، 9311 (ص 19-91) پژوهشی مقاله تیواوره و سولفید دی کربن جیبرلیک، اسید اثر بررسی و خواب شکستن بر جوانه زنی مینی تیوبر های سیب زمینی هسراک شبنم 9 باقری عبدالرضا ، 2 * ضرغامی رضا و 3 1. ایران. مشهد، مشهد، فردوسی دانشگاه کشاورزی، دانشکده زراعی، گیاهان نژادی به و بیوتکنولوژی گروه 2. علمی هیئت عضو ایران. مشهد، مشهد، فردوسی دانشگاه کشاورزی، دانشکده زراعی، گیاهان نژادی به و بیوتکنولوژی گروه ، 3. کرج کشاورزی، ترویج و آموزش تحقیقات، سازمان ایران، کشاورزی بیوتکنولوژی پژوهشگاه سلول، و بافت کشت بخش علمی، هیئت عضو-ایران
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" ایران بذر فناوری و علوم نشریه " شماره نهم، جلد 3 پاییز ، 9311 (ص 75-57) پژوهشی مقاله کشت بستر ترکیب و خواب شکست تیمارهای اثر جوانه بر کور گیاه نهال مورفولوژی و بذر زنی... more
" ایران بذر فناوری و علوم نشریه " شماره نهم، جلد 3 پاییز ، 9311 (ص 75-57) پژوهشی مقاله کشت بستر ترکیب و خواب شکست تیمارهای اثر جوانه بر کور گیاه نهال مورفولوژی و بذر زنی (Capparis spinosa L.) آگاه فاطمه 9 ، اسماعیلی محمدعلی 2 * ، فرزام محمد 3 و عباسی رحمت 5
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Seed deterioration is an important factor in reducing of physiological seed quality that it increased the severity of damage in adverse environmental conditions.The effects of hydrogen peroxide to improve physiological and antioxidant... more
Seed deterioration is an important factor in reducing of physiological seed quality that it increased the severity of damage in adverse environmental conditions.The effects of hydrogen peroxide to improve physiological and antioxidant enzyme activities in aged groundnut seeds under drought stress were studied. A factorial experiment based on completely randomized design with three replications was done. Priming of different concentrations of hydrogen peroxide (0, 50, 100 and 150 µM) under 0, -0.4, -0.6 and -0.8 MPa drought stress levels were evaluated. The results showed that seed priming with hydrogen peroxide in different drought levels increased some traits such as germination percentage, germination rate, vigour index, plumule and radicle length, soluble carbohydrates and protein contents and antioxidant enzymes activities (catalase, ascorbate peroxidase and superoxide dismutase). While it decreased mean germination time, electrical conductivity and malondialdehyde content in comparison to nonprime seeds. So seed priming with 50 and 100µM of hydrogen peroxide in -0.8 MPa level increased germination rate, vigor index , soluble carbohydrates and proteins, respectively by 27.89, 93.24, 71.42, 46.12, 27.06, 76.73, 30.26 and 51.04% compared to nonprimed seeds. Also, it increased activity of catalase, superoxide dismutase and ascorbate peroxidase, respectively by 26.37, 8.79, 39.07, 15.43, 5.28 and 21.51% compared to non-primed seeds. Therefore, the use of 50 mM hydrogen peroxide to reduce the negative effects caused by deterioration in drought stress is recommended.