Raouf Seyed sharif; reza seyed sharifi
Abstract
In order to study the effects of nitrogen starter, putrescine, and nano silicon on yield and some physiological and biochemical traits of rainfed chickpea (Cicer arietinum L.), an experiment was carried out as factorial based on randomized complete block design with three replications in a farm near ...
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In order to study the effects of nitrogen starter, putrescine, and nano silicon on yield and some physiological and biochemical traits of rainfed chickpea (Cicer arietinum L.), an experiment was carried out as factorial based on randomized complete block design with three replications in a farm near Ardabil in 2021. The experiment factors include nitrogen starter (no-nitrogen starter, application of 20 and 40 kg.ha-1 by urea), putrescine foliar aplication (foliar application with water, application of 0.5 and 1 mM putrescine), and nano silicon (foliar application with water, application of 25 and 50 mg.L-1). Means comparision show that the highest level of nano silicon, putrescine, and nitrogen starter have increased chlorophyll a, chlorophyll b, total chlorophyll, and proline content (139%, 137%, 138%, and 80%, respectively), compared to no application of nano silicon, putrescine, and starter nitrogen. The highest level nano silicon and putrescine has increased the activity of catalase, peroxidase enzymes and grain yield (40%, 16.3%, and 16.6%, respectively), compared to no application of nano silicon and putrescine. Maximum quantum yield of photosystem II (7.4%, 8%, and 15.5%, respectively) and the activity of polyphenol oxidase enzyme (17%, 9%, and 21%, respectively) are obtained at the highest level starter nitrogen, putrescine, and nano silicon. It seems that the application of nano silicon, putrescine, and starter nitrogen can increase grain yield of chickpea under rainfed condition as it improves physiological and biochemical traits.
Raouf Seyed sharif; reza seyed sharifi; Hamed Narimani
Abstract
In order to study the effect of methanol and seed inoculation with plant growth promoting rhizobacteria on grain filling components, chlorophyll content and grain yield of safflower (Carthamus tinctorius L.) under various irrigation levels, a factorial experiment has been conducted based on randomized ...
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In order to study the effect of methanol and seed inoculation with plant growth promoting rhizobacteria on grain filling components, chlorophyll content and grain yield of safflower (Carthamus tinctorius L.) under various irrigation levels, a factorial experiment has been conducted based on randomized complete block design with three replications at the research farm of University of Mohaghegh Ardabili in 2020. The experimental factors include irrigation (full irrigation as control, irrigation withholding at 50% heading-bud, and flowering stages), biofertilizers application (no application as control, seed inoculation with Flavobacterium, Pseudomonas and both application of Flavobacterium and Pseudomonas), and methanol foliar application: (foliar application with water as control and foliar application with 10% and 20% volume of methanol). The results show that the content chlorophyll a (41.57%), b (74.59%) and total chlorophyll (49.33%), grain filling period, and effective grain filling period (27.32% and 72.89% respectively) and grain yield (69.2%) have increased under full irrigation condition, foliar application 20% volume of methanol, and both application of Flavobacterium with Pseudomonas in comparison with irrigation withholding at 50% heading-bud and no application of biofertilizers and methanol. Generally, the results show that application of plant growth-promoting bacteria and methanol can increase grain yield of safflower by improving chlorophyll content and grain filling components under water limitation condition.
Raouf Seyed sharif; reza seyed sharifi; hamed narimani
Abstract
In order to study the effect of bio-fertilizers and putrescine on biomass, nodulation, and some morphological and biochemical traits of vetch(vicia villosa)under rainfed conditions, a factorial experiment has been conducted based on randomized complete block design with three replications in research ...
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In order to study the effect of bio-fertilizers and putrescine on biomass, nodulation, and some morphological and biochemical traits of vetch(vicia villosa)under rainfed conditions, a factorial experiment has been conducted based on randomized complete block design with three replications in research farm of University of Mohaghegh Ardabili within 2018-2019. The studied factors include bio-fertilizers(withoutbio-fertilizersas control, application of Rhizobium (Rhizobium legominuzarum), Mycorrhiza (Glomus mosseae), both application of Mycorrhiza and Rhizobium, Rhizobium and Azotobacter (Azotobacter chrocoocom strain 5), Mycorrhiza and Azotobacter, Rhizobium with Mycorrhiza,and Azotobacter) as well as foliar application of putrescine in three levels (foliar application with water as the control, application of 0.5 and 1 mM putrescine). Results show that both application of Azotobacter with Mycorrhiza and Rhizobium and foliar application of 1 mM putrescine increase root weight, leaf share from total biomass, soluble sugars of leaf and stem, and total biomass by 133.33%, 4.5%, 31.94%, 41.82%, and 56.94%, respectively, in comparison with no application of bio-fertilizers and putrescine. Also, application of Azotobacter with Mycorrhiza and Rhizobium and foliar application of 1 mM putrescine decrease electrical conductivity and malondialdehyde by 99% and 125.39%, respectively, in comparison with no application of bio-fertilizers and putrescine. It seems that application of bio-fertilizers and foliar application of putrescine can boost total biomass of vica villosa under rainfed condition as it improves both biochemical and morphological traits.
Raouf Seyed sharif; reza seyed sharifi
Abstract
In order to study the effects of various rates of starter nitrogen, methanol, and bio fertilizers on nodulation, grain filling period, and yield of lentil (Lens culinaris L.) under rainfed condition, an experiment has been carried out as factorial based on randomized complete block design with three ...
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In order to study the effects of various rates of starter nitrogen, methanol, and bio fertilizers on nodulation, grain filling period, and yield of lentil (Lens culinaris L.) under rainfed condition, an experiment has been carried out as factorial based on randomized complete block design with three replications under field condition in Ardabil in 2018-2019. The factors include starter nitrogen in three levels (no nitrogen and N application of 25 and 50 kg/ha) by urea, bio fertilizers in four levels (without bio fertilizers, application of Rhizobium legominosarum, mycorrhiza and both application of mycorrhiza with Rhizobium legominosarum), application of methanol at three levels (foliar application with water and methanol applications of 15 and 30 volume percent). Means comparision show that the maximum number and weight of nodules per plant (12.72 and 11.59 mg per plant, respectively), grain filling rate (1.45 mg/day), grain filling period and effective grain filling period (35.17 and 29.91 days, respectively), number of pod per plant (34.43), and grain yield (1530 kg/ha) have been obtained at both applications of mycorrhiza with Rhizobium legominosarum, foliar application of 30 volume percent of methanol, and 50 kg/ha of starter nitrogen. The treatments display an increase of about 210%, 25.64%, 45.76%, and 103% in the number of nodules per plant, grain filling rate, effective grain filling period, and grain yield, respectively, in comparison with the control (no application of nitrogen, methanol, and bio fertilizers). Based on the results from this study, both applications of bio fertilizers (mycorrhiza with Rhizobium legominosarum) and foliar application of 30 volume percent of methanol with 50 kg/ha starter nitrogen are recommended to improve grain yield of lentil under rainfed condition.
Raouf Seyed sharif; Reza Seyed Sharifi
Abstract
In order to study the effect of irrigation levels and application of methanol and nano iron oxide on yield and grain filling components of sunflower (Helianthus annuus L.), a factorial experiment was conducted based on randomized complete block design with three replications at the research farm of the ...
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In order to study the effect of irrigation levels and application of methanol and nano iron oxide on yield and grain filling components of sunflower (Helianthus annuus L.), a factorial experiment was conducted based on randomized complete block design with three replications at the research farm of the Islamic Azad University, Ardabil Branch in 2017. The experimental factors were included: application of methanol (foliar application with water as control, 20 and 30 volume percent), nano iron oxide (foliar application with water as control, application of 0.3, 0.6 and 0.9 g.L-1) and irrigation levels (full irrigation as control, irrigation withholding at flowering stage, irrigation withholding at grain filling period). The results showed that the highest grain yield (2952 kg/ha), number of filled grains per head (1121 grains per head), 1000-grain weight (50 g), rate and grain filling period, effective grain filling period (0.00239 g/day, 42 and 33 days respectively) and chlorophyll index (56) were obtained in full irrigation and high levels of methanol and nano iron oxide. Maximum of proline and soluble sugars content (11.1 µg/g FW and 72 mg/g FW) were obtained in irrigation withholding at flowering stage and application of high rates of methanol and nano iron oxide. The least of they were obtained in full irrigation and no application of methanol and nano iron oxide.
Raouf Seyed sharif; Reza Seyed Sharifi
Abstract
In order to study the effect of mycorrhiza and foliar nano (Fe and Zn) oxide spraying on yield and some biochemical traits of spring safflower (cultivar Padedeh) under water limitation condition, a factorial experiment was conducted based on randomized complete block design with three replications at ...
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In order to study the effect of mycorrhiza and foliar nano (Fe and Zn) oxide spraying on yield and some biochemical traits of spring safflower (cultivar Padedeh) under water limitation condition, a factorial experiment was conducted based on randomized complete block design with three replications at the research farm of the Islamic Azad University, Ardabil Branch in cropping year of 2014. The experimental factors were included arboscular mycorrhiza application in two levels (with and without mycorrhiza), foliar application of nano zinc oxide in four levels (non-foliar application and foliar application of nano iron oxide, nano zinc oxide and nano zinc oxide + nano iron oxide) and irrigation in three levels [full irrigation as control, irrigation with holding at 50% of flowering and heading-bud stages (moderate and severe water limitation respectively)]. Results showed that water limitation was increased proline content, the activity of catalase, peroxidase, polyphenol oxidase enzymes. Mycorrhiza application and foliar nano (Fe and Zn) oxide spraying improved these traits under water limitation condition and normal irrigation. Means comparison showed that maximum of grain yield (2278.52 kg ha-1) was obtained at application of mycorrhiza, nano oxide of Zn+Fe and full irrigation. Minimum of it (834.25 kg ha-1) was obtained in non-mycorrhiza, no application of nano oxide and irrigation to heading-bud stage. Application of mycorrhiza and nano oxide of Zn+Fe increased grain yield by 35.9% as compared with non-mycorrhiza, non-foliar application of nano oxide under severe water limitation. It seems that mycorrhiza and nano oxide of Zn+Fe application is usable for profitable safflowerproduction under water limitation condition.