parisa sheikhzadeh; Gholam Behzad; Nasser Zare; Mitra Rostami
Abstract
Objective: Due to the injuries caused by cold and frost in temperate and cold regions, utilizing strategies that increase cold tolerance to enhance the winter survival and establishment of seedlings is imperative.Methods: To investigate the effects of selenium nanoparticles application on photosynthetic ...
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Objective: Due to the injuries caused by cold and frost in temperate and cold regions, utilizing strategies that increase cold tolerance to enhance the winter survival and establishment of seedlings is imperative.Methods: To investigate the effects of selenium nanoparticles application on photosynthetic and biochemical indices and cold tolerance of oilseed rape, an experiment was carried out based on a randomized complete blocks design with three replications at the research farm station of the University of Mohaghegh Ardabili in 2018. The treatments consisted of foliar application of selenium nanoparticles (0 [control], 25, and 50 mg L-1) applied at the 6-8 leaves stage.Results: The results demonstrated that selenium nanoparticle application significantly increased the RWC, photosynthetic pigments, antioxidant enzyme activity, winter survival, and grain yields. The highest RWC, maximal flourescnece (Fm), highest photochemical efficiency of photosystem II (Fv/Fm), and variable fluorescence (Fv), proline content, and the activity of catalase and peroxidase enzymes were obtained with the foliar application of 50 mg L-1 selenium nanoparticles. Selenium nanoparticles application significantly increased the winter survival of oilseed rape plants by about 7.18 to 8.94 percent, by improving the Fv/Fm, the activity of the antioxidant enzymes, and proline content. Foliar application of 25 and 50 mg L-1 selenium nanoparticles resulted in about 28.10 and 34.19 percent increase in grain yield of oilseed rape as compared to the control (no spraying) treatment, respectively.Conclusion: In general, the results demonstrated that applying 50 mg L-1 selenium nanoparticles had positive and significant effects on the photosynthetic and biochemical characteristics of winter oilseed rape, which resulted in the increased cold tolerance of the oilseed rape plants.
Elham Modiri; Davood Barari Tari; Ebrahim Amiri; Yousef Niknejad; Hormoz Fallah Amoli
Abstract
Objective: In order to simulate yield, leaf area, and nitrogen content in rice plant by using the ORYZA2000 model under different nitrogen fertilizer amounts and various splitting approaches, a factorial experiment based on a randomized complete block design with three replications was carried out at ...
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Objective: In order to simulate yield, leaf area, and nitrogen content in rice plant by using the ORYZA2000 model under different nitrogen fertilizer amounts and various splitting approaches, a factorial experiment based on a randomized complete block design with three replications was carried out at a research farm located in the Mazandaran Province (Babol) during 2017-18.Methods: The first factor comprised four nitrogen fertilizer rates (50, 90, 130, and 170 Kg n ha−1, supplied as urea) and the second factor comprised various fertilizer splitting appraoches (T1: 70% basal+ 30% in tillering stage; T2: 33.33% basal+ 33.33% in tillering stage+ 33.33% in panicle initiation stage; T3: 25% basal+ 50% in tillering stage+ 25% in panicle initiation stage; T4: 25% basal+ 25% in tillering stage+ 50% in panicle initiation stage).Results: The results demonstrated that the model successfully simulated grain yield, biomass, grain nitrogen, and total nitrogen with RMSEn of four, four, nine, and six percent in calibration, and five, four, four, and eight percent in validation, respectively. The mean square error for the leaf area index was 0.5 and 0.4 in the model’s calibration and validation, respectively.Conclusion: Based on the results obtained, the ORYZA2000 model can be used as a suitbale simulation model for selecting the best strategy for enhancing rice yield under different nitrogen fertilizer management in the rice-rich regions of northern Iran.
Hamed Narimani; Raouf Seyed Sharif; Fatemeh Aghaei
Abstract
Objective: This experiment was conducted to investigate the effects of nanoparticles (Zn and Si) and putrescine on grain-filling components of wheat under salinity stress.
Methods: An experimental factorial based on a randomized complete block design with three replications was conducted at the research ...
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Objective: This experiment was conducted to investigate the effects of nanoparticles (Zn and Si) and putrescine on grain-filling components of wheat under salinity stress.
Methods: An experimental factorial based on a randomized complete block design with three replications was conducted at the research greenhouse of the University of Mohaghegh Ardabili in 2022. The experimental factors included salinity at four levels (without salinity application as control, application of 40, 80, and 120 mM salinity with NaCl) and nanoparticle and putrescine foliar application at eight levels (foliar application with water as control, foliar application of 50 mg.L-1 of Si, foliar application of 1 g.L-1 of Zn, foliar application of 1 mM putrescine, foliar application of Si-Zn, foliar application of Si and putrescine, foliar application of Zn and putrescine, foliar application of Si-Zn and putrescine).
Results: The results showed that the highest grain-filling period and effective grain-filling period were obtained under nanoparticles and putrescine foliar application. This treatment combination under non-saline condition increased the root weight and volume (48.1 and 53.03% respectively), chlorophyll index (45.75%), and grain-filling rate (20%). There was an increase of 45.34, 62.72, 40.5, 36.21 and 37.37% in plant height, spike length, number of grains per spike, 100 grains weight and grain yield, respectively, under non-saline condition and foliar application with nanoparticle and putrescine in compared with no foliar application under 120 mM salinity.
Conclusion: It seems that the foliar application of nanoparticles and putrescine under salinity can increase the yield of wheat by improving root characteristics and grain-filling components.
Esmaeil Bakhshandeh; Hemmatollah Pirdashti; Fezzeh Gholitabar Faramarzi; Tayebeh Zholideh Rodposhti; Faezeh Zaefarian
Abstract
Objective: This study was performed to evaluate the effect of Rahnella aquatilis and Burkholderia cepacia bacteria on yield, yield components, and uptake of potassium and zinc elements in rice (Oryza sativa L.).
Methods: The experiment was conducted as a split-plot in a randomized complete block design ...
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Objective: This study was performed to evaluate the effect of Rahnella aquatilis and Burkholderia cepacia bacteria on yield, yield components, and uptake of potassium and zinc elements in rice (Oryza sativa L.).
Methods: The experiment was conducted as a split-plot in a randomized complete block design with three replications in 2022. Treatments included two levels of chemical fertilizer (100 and 75% of chemical fertilizer consumption based on the soil test results as optimal and reduced fertilizer levels, respectively) and four inoculation treatments (separate inoculation of R. aquatilis, B. cepacia, a co-inoculation (R.aquatilis+B.cepacia) and control (non-inoculation)).
Results: The results indicated that there was no significant difference between the optimal and reduced fertilizer levels in all the studied traits. The separate inoculation of R. aquatilis, B.cepacia and their co-inoculation increased the panicle length (from 5.88 to 11.3%), the number of total tillers in hill-1 (from 19.4 to 29.1%), the total number of grains in panicle-1 (from 22.8 to 46.5%), paddy yield (from 22.8 to 44.3%), biological yield (from 20.3 to 33.6%), 1000-seed weight (from 2.4 to 8.8%), potassium uptake in grain (from 6.0 to 41.4%) and in above-ground biomass (from 38.4 to 65.4%), zinc uptake in grain (from 6.29 to 40.9%) and in above-ground biomass (29.4 to 54.6%) as compared with the control (non-inoculation).
Conclusion: The application of plant growth-promoting rhizobacteria in combination (as the best inoculation treatment) reduced chemical fertilizers consumption without a significant reduction in the paddy yield, indicating the importance of these rhizobacteria for achieving sustainable agriculture goals.
Jahanfar Daneshian; farnaz shariati; NADIA SAFAVI FARD
Abstract
Objective: Selection of soybean cultivars that have a higher grain yield under water deficit conditions, reduces the damage to soybean producers.Methods: The response of soybean genotypes to water deficit stress was investigated in terms of agricultural characteristics and grain yield in Karaj (Iran), ...
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Objective: Selection of soybean cultivars that have a higher grain yield under water deficit conditions, reduces the damage to soybean producers.Methods: The response of soybean genotypes to water deficit stress was investigated in terms of agricultural characteristics and grain yield in Karaj (Iran), during two years. The experiment was carried out as a split plot based on randomized complete block design in three replications, with three irrigation levels (control, mild stress, and severe stress) based on 50, 100, and 150 mm evaporation from a Class A evaporation pan as the main plot and 10 soybean genotypes as the sub-plot.Results: The results showed that mild and severe stress caused the node number and inter-node to decrease in comparison with control irrigation. Under control irrigation, the highest grain yield (2585 kg/ha) was obtained from the early-maturing Saba cultivar, with the highest seed number per unit area. The early-maturing genotypes had the highest grain yield under control irrigation, and their grain yield decreased significantly with increasing stress intensity. The grain yield of the Saba cultivar reduced under mild and severe stress by 32 and 59% compared to control irrigation, respectively. Under stress conditions, the late-maturing genotypes had the highest grain yield and water deficit stress caused a slight decrease in their grain yield. Under mild and severe stress, the late-maturing Williams×A3935 line had the highest grain yield and protein yield, respectively.Conclusion: Under control irrigation, the Saba cultivar, and under stress conditions (mild and severe) the Williams×A3935 line is recommended in Karaj and similar climates (moderately cold region).
Farzad Mondani; Amin Yari; Alireza Bagheri; Hamidreza Chaghazardi
Abstract
Objective: Intercropping is one of the most important crop management methods to achieve sustainable agriculture goals. Therefore this study was conducted to evaluate safflower with lentil intercropping under dryland conditions.Methods: The experiment was conducted as a randomized complete block design ...
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Objective: Intercropping is one of the most important crop management methods to achieve sustainable agriculture goals. Therefore this study was conducted to evaluate safflower with lentil intercropping under dryland conditions.Methods: The experiment was conducted as a randomized complete block design with three replications and five treatments during 2018-2019 at the research farm of the Razi University. The experimental treatments included Safflower monoculture, Safflower and Lentil intercropping with 25:75 ratio, Safflower and Lentil intercropping with 50:50 ratio, Safflower and Lentil intercropping with 75:25 ratio, and Lentil monoculture. Safflower was considered as the main plant and Lentil as the alternative plant. The evaluated traits were leaf area index, radiation absorption, crop growth rate, relative growth rate, total dry matter, radiation use efficiency, and grain yield.Results: The results showed that the leaf area index and consequently, radiation absorption in intercropping compared to monoculture increased by 6.2% and 48%, respectively. Trend of changes in safflower’s crop growth rate in intercropping canopy compared to monoculture did not change, but the relative growth rate showed a 7.7%increase. The amount of total dry matter and radiation use efficiency in intercropping canopy did not change much compared to monoculture. Grain yield of Safflower was higher in monoculture (2472 kg.ha-1), which did not significantly differ from the treatments with 75:25 (2294 kg.ha-1) and 50:50 (2107 kg.ha-1) ratio of Safflower and Lentil.Conclusion: Generally, the results showed that the intercropping of safflower with lentils was not economically beneficial, however, alternative intercropping patterns with ratios of 25:75 and 50:50 of safflower and lentil were more efficient in terms of the investigated traits.
Mohammad Reza Mansouri Vajari; Ebrahim Zeinali; Afshin Soltani; Benjamin Torabi; Alireza Nehbandani
Abstract
Objective: The present study was conducted in order to estimate the yield gap of faba bean in the main production areas of this plant in Golestan province, including Gorgan, Ali Abadkatol and Aq Qola cities, and to identify the factors that cause it and to determine the contribution of each of them.Methods: ...
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Objective: The present study was conducted in order to estimate the yield gap of faba bean in the main production areas of this plant in Golestan province, including Gorgan, Ali Abadkatol and Aq Qola cities, and to identify the factors that cause it and to determine the contribution of each of them.Methods: Based on this, the information related to the production management of 445 faba bean farms in Gorgan, Aliabadkatol and Aqqola regions in 1398-1399 and 1399-1400 was collected and the yield gap was estimated using the comparative performance analysis (CPA) method.Results: The average, maximum, and gap yield of faba bean seeds were 2742, 4000, and 1258 kg per hectare, respectively. Additionally, based on the results obtained, the most important reasons for the yield gap and the contribution of each of them in creating the yield gap were: planting date 21%, pests 15 percent, the amount of pure nitrogen (N) 14 percent, the number of disc times 14 percent, the amount of seed used 12 percent, diseases 12 percent, waterlogging 5 percent, weeds 3 percent, non-use of working row 2 percent and improper planting depth 1 percent.Conclusion: In general, by optimizing the management of faba bean production and eliminating the mentioned factors of yield gap, it is possible to increase the yield of faba bean in the regions of Gorgan, Ali Abadkatol and Aq Qala of Golestan province by 46 percent (equal to 1258 kg per hectare) compared to the current amount increased.
Alireza Hamdami; Hashem Hadi; Amir Rahimi
Abstract
Objective: Weeds reduce the yield and quality of fenugreek. The present study was conducted to investigate the effect of different periods of weed control and interference on yield and yield components of fenugreek.Methods: This experiment was adjusted with 12 treatments and three replicates, out of ...
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Objective: Weeds reduce the yield and quality of fenugreek. The present study was conducted to investigate the effect of different periods of weed control and interference on yield and yield components of fenugreek.Methods: This experiment was adjusted with 12 treatments and three replicates, out of which 6 treatments comprised weed control and the other 6 treatments comprised weed interference (including weed control or weed interference from emergence up to the third true leaf, the sixth true leaf, to the first flowering branch, to the third flowering branch, to flowering, and to seed filling) at the research farm of Urmia University in 2018.Results: The results showed that the interference treatment up to the third true leaf had the lowest weed dry weight. In both treatment series, a significant decrease was observed in grain yield per plant and hectare of fenugreek with increasing the presence period of weeds so that the beginning of the critical period was determined 140 and 158 GDD from plants emergence at two acceptable levels of 5 and 10% reduction of grain yield per hectare, respectively, and the end of the critical period of weed control was established at 349 and 282 GDD from the emergence at the two levels of yield reductions, respectively.Conclusion: Therefore, the best time to control the weeds was from the third true leaf to flowering and from the four-leaf stage until the appearance of flowers at 5% and 10% yield reduction levels, respectively.
Zeinab Alipoor; khodayar Hemmati; Khalil Zaynalinezhad; Mohammad Kheyrkhah
Abstract
Objective: Comparison of the morphological and phytochemical characteristics of annual and perennial wild and cultivated Kakuti in Razavi, North and South Khorasan provinces.Methods: In this study, annual (Ziziohora tenuior) and perennial (Ziziphora clinopodioides) Kakuti were studied in six regions ...
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Objective: Comparison of the morphological and phytochemical characteristics of annual and perennial wild and cultivated Kakuti in Razavi, North and South Khorasan provinces.Methods: In this study, annual (Ziziohora tenuior) and perennial (Ziziphora clinopodioides) Kakuti were studied in six regions in Razavi, North and South Khorasan province in 2021. Plant samples were collected from each region and planted in pots. The experimental design used in this experiment was a nested design with four replications. In addition, by going back to the places where plants were collected in the target areas, all the morphological and phytochemical traits were measured for the wild plants.Results: The results demonstrated that the highest percentage of essential oil in annual and perennial kakuti bonged to Qain (0.75%) and Quchan (2.29%), respectively. Also, the percentage of pulegone in the annual kakuti in Bardaskan was higher than that of the other studied cities (77.58%). The highest alpha-pinene (0.42%) and sabinene (1.31%) percentage of annual kakuti belonged to Bojnord, while the alpha-pinene and sabinene of the perennial kakuti in Quchan (0.89%) and Bojnurd (1.23%) was higher than that of the other cities.Conclusion: The amount of phenol, flavonoid and antioxidant activity in the annual and perennial kakutis under natural conditions and in Sarayan were higher than the other treatments. The annual and perennial kakutis belonging to Bojnurd had higher wet and dry yields than the other ecotypes, while the kakuti belonging to Sarayan had superior phytochemical characteristics.
parvin ramak; Vahid Karimian; Mohamad Jafari; Payam Pezeshkpour; Hassan Mahddevar; Ebrahim Sharifi Ashoorabadi
Abstract
Objective: Considering the importance of Mosir as a medicinal-industrial plant, this research was conducted to investigate the different planting and harvesting methods’ effect on the plant’s quantitative and qualitative characteristics in the Lorestan province.Methods: The experiment was ...
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Objective: Considering the importance of Mosir as a medicinal-industrial plant, this research was conducted to investigate the different planting and harvesting methods’ effect on the plant’s quantitative and qualitative characteristics in the Lorestan province.Methods: The experiment was conducted in the form of a completely randomized block design for three years (2017-2020) in the Aligudarz County. The methods of manual and machine planting, and planting distance of 10 and 15 cm were investigated. Additionlly, the economic performance of the different methods was evaluated.Results: The resulted demonstrated no significant difference in leaf width among the studied treatments, but displayed a significant difference in plant height at the level of 1%. The mean comparison showed that the wet and dry yield in different treatmenst had significant differences. The highest yield (847g/m2) was obtained in the second year with the machine method and the lowest yield (636g/m2) was obtained in the third year with manual planting. The dry matter yield was achieved at a planting distance of 10cm (185.633 g/m2) and a planting distance of 15cm (178.611g/m2) and the dry matter yield was obatiend in the machine planting method (199.91g/m2) and the manual planting method (164.33g/m2).The economic evaluation of the results indicated that the average costs are 19% lower in the machine cultivation method compared to the manual planting method. Conclusion: The overall results highlighted income increase and cost reduction in the planting and harvesting of Mosir with the machine method. Moreover, the mechanized planting and harvesting of Mosir was executed much faster compared to the manual planting and harvesting of this plant.
Mohammad Sadat-Hosseini; Naser Askari
Abstract
Objective: The present study was performed to study the effects of MS, WPM, B5 culture media and benzylaminopurine (BAP) hormone on hyssop proliferation, and to assess the effects of different concentrations of IBA and IAA hormones on rooting characteristics of hyssop.Methods: The experiments were conducted ...
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Objective: The present study was performed to study the effects of MS, WPM, B5 culture media and benzylaminopurine (BAP) hormone on hyssop proliferation, and to assess the effects of different concentrations of IBA and IAA hormones on rooting characteristics of hyssop.Methods: The experiments were conducted as a factorial with a completely randomized design with three replications at the laboratory of tissue culture of the Faculty of Agriculture, University of Jiroft. To produce sterile seedlings, seeds were collected from mountainous regions of Kerman province and planted on the MS medium. The single-node explants were cultivated on MS, WPM, and B5 culture media containing the benzylaminopurine hormone with concentrations of 0, 1, and 2 mg/L. To induce rooting, the shoots were placed on the MS culture medium containing 0.5 and 1 mg/L of indole butyric acid and indole acetic acid. GiaRoots software was employed to analyze the architecture of the roots obtained.Results: Based on the research results, the highest proliferation coefficient was obtained in the MS culture medium with a concentration of 2 mg/L of benzylaminopurine hormone. In addition, the results of root architecture analysis showed that IBA hormone with a concentration of 1 mg/L demonstrated the most effective treatment for rooting induction.Conclusion: The adaptation test results demonstrated that 85% of the plants transferred to the greenhouse survived.
mehdi taheri asghari; Seyed Reza Miralizadeh Fard
Abstract
Objective: The purpose of this experiment was to investigate the effects of foliar application of humic acid and mycorrhizal fungi symbiosis on the quantitative and qualitative characteristics of Thyme (Thymus vulgaris L.)Methods: This experiment was conducted with factorial layout based on a randomized ...
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Objective: The purpose of this experiment was to investigate the effects of foliar application of humic acid and mycorrhizal fungi symbiosis on the quantitative and qualitative characteristics of Thyme (Thymus vulgaris L.)Methods: This experiment was conducted with factorial layout based on a randomized complete block design with three replications in the research farm’s field of the Azad University, Takestan Branch, during 2020-2021 and 2021-2022. The experimental factors included three species of mycorrhiza fungi (control, Glomus mosseae, G.etunicatum, and G.intradices), and humic acid fertilizer levels (control, 150, and 300 mg.lit-1).Results: The results showed that the interactive effect of humic acid and mycorrhiza on the percentage and yield of essential oil and yield was significant. The highest essential oil yield was obtained from the treatment of 150 mg of humic acid and the application of mycorrhiza G. mosseae, which showed a 154% increase over the control. Additionally, the highest p-cymene and g-terpinene, which are the most important essential oil compounds in thyme, were obtained from 300 mg of humic acid, demonstrating an increase of 23 and 11%, respectively, compared to the control. The highest p-cymene and g-terpinene were obtained from the treatment of mycorrhiza G.mosseae, which showed an increase of 21 and 26%, respectively, compared to the control.Conclusion: Based on the results obtained, it can be stated that by providing suitable growth conditions for thyme medicinal plants using humic acid and mycorrhizal fungi, it is possible to influence the plants’ performance and reduce chemical fertilizers consumption.
adel abdimani; Gholam Ali Akbari; elias soltani; Majid Ghorbani Javid
Abstract
Objective: The present study was conducted during the agricultural year 2021-2022 with the aim of investigating the effect of planting date and shading on yield and some quantitative and qualitative characteristics of ginger using a split plot design with three replications at the research farm of the ...
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Objective: The present study was conducted during the agricultural year 2021-2022 with the aim of investigating the effect of planting date and shading on yield and some quantitative and qualitative characteristics of ginger using a split plot design with three replications at the research farm of the Aboureihan Campus, located in the Pakdasht region of Tehran province.Methods: In this study, the light level was controlled at four levels (no shading [full light], shading from August 7 until harvesting [light-shade], shading until August 6 [shade-light], and shading thoughout the growth period [full shading]) as the main factor and the secondary factor comprised the planting date at three levels (April 20, May 10, and May 31).Results: The results indicted that applying full shading initially, and then transitioning to the shade-light treatment along with planting ginger on the 20th of April, had the most significant impact on increasing all the examined traits, including yield components, yield, and the percentage of essential oil in ginger rhizomes. The two mentioned treatments (full shading and shade-light) led to an approximately 29% increase in the number of rhizomes in ginger plants compared to both the full light treatment and the light-shading treatment. On the other hand, the highest ginger essential oil percentage (1.76%) was obtained in plants planted on the 20th of April, which was approximately 25% higher when compared to the essential oil percentage of plants planted on the 31st of May.Conclusion: Implementing shading treatment on the planting date of April 20 could be a promising method for significantly increasing both the quantitative and qualitative yield of ginger under similar climatic conditions.
Mohammad Hadi Tardasti; Mehdi Madandoust
Abstract
Objective: In order to investigate the feasibility of phytoremediation of cadmium nitrate-contaminated growth substrates with weeds, a factorial experiment was conducted in the form of a completely randomized design in the spring of 2021-22.Methods: The experimental factors included weeds (Portulaca oleracea, ...
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Objective: In order to investigate the feasibility of phytoremediation of cadmium nitrate-contaminated growth substrates with weeds, a factorial experiment was conducted in the form of a completely randomized design in the spring of 2021-22.Methods: The experimental factors included weeds (Portulaca oleracea, Chenopodium album, and Amaranthus retroflexus) and the gowth substrate contamination with cadmium nitrate comprising levels of zero (control), 25, 50, and 75 miligrams per kilogram of soil.Results: The results showed that with increasing consumption of cadmium nitrate, the amount of cadmium in the shoots, roots and biological factors exhibited an increasing trend. The amount of root cadmium was higher in P.oleracea, but the concnetration of shoot cadmium in Ch.album and A.retroflexus showed a significant increase compared to that of P.oleracea. Therefore, in purslane, the transfer of cadmium from the roots to the shoots was probably less than that of Ch.album and A.retroflexus. With the increase in cadmium nitrate concentration, ion leakage displayed an increasing trend, and leaf relative water content and chlorophyll content displayed declining trends. On the other hand, the catalase and ascorbate peroxidase enzymes in leaves showed an increasing trend with increasing cadmium nitrate consumption. Also, the highest activity of antioxidant enzymes was observed in A.retroflexus weeds.Conclusion: Generally, with the mentioned characteristics, ther P.oleracea plant can be considered as a hyperaccumulator, and Ch.album and A.retroflexus can be considered as moderate accumulators of cadmium metal.
tahere jahantigh; Abdolshakoor Raissi; Hossein Piri
Abstract
Objective: This research was carried out with the aim of investigating the effect of Biofertilizers on some characteristics of guar in the crop year of 2018-2019 in Iranshahr city.Methods: The research was carried out in the form of a randomized complete block design with 8 treatments and 4 replications. ...
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Objective: This research was carried out with the aim of investigating the effect of Biofertilizers on some characteristics of guar in the crop year of 2018-2019 in Iranshahr city.Methods: The research was carried out in the form of a randomized complete block design with 8 treatments and 4 replications. The treatments included 1- Nitroxin (1 liter per hectare), 2- Mycorrhiza (200 kg per hectare), 3- Azotobacter (1 liter of fertilizer per 100 kg of seeds), 4- Rhizobium (1 liter of fertilizer per hectare), 5- Phosphate Barvar 2 (100 grams per hectare), 6- Phosphate Barvar 3 (100 grams per hectare), 7- Biosulfur (6 kg per hectare), and 8- control.Results: The results demonstrated that the effect of fertilizer type on most of the investigated characteristics was significant at the probability level of 1%. The effect of the treatments on the percentage of mucilage was significant at the five percent probability level. The highest biological yield (14.66), number of lateral branches (11.78), harvest index (31.79), plant height (166.53 cm), number of seeds per plant (52.47), seed yield (kg 4438/13 ha), seed nitrogen percentage (5.475), seed protein percentage (32.71), ash percentage (0.173), mucilage percentage (25.860) and swelling factor (1.83 ml) were obtained under the influence of the Nitroxin biofertilizer. The highest number of seeds in pod (5.17) and 1000-seed weight (35.67 g) were obtained under the effect of the biosulfur biofertilizer.Conclusion: Among the investigated treatments, the nitroxin biofertilizer and then the biosulfur exerted a relatively greater effect on most of the quantitative and qualitative characteristics of the guar plant.
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