Babak Sepehri; Hami dreza tohidi Moghadam; Farshad Ghooshchi; Meysam Oveysi; Pourang Kasraie
Abstract
Periwinkle herb with the scientific name (Catharanthus roseus) is one of the most important medicinal plants in the world which in addition to haring leaves beautiful flowers and decorative application, it also has different applications in pharmaceutical industries cosmetics and hygienic. This plant, ...
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Periwinkle herb with the scientific name (Catharanthus roseus) is one of the most important medicinal plants in the world which in addition to haring leaves beautiful flowers and decorative application, it also has different applications in pharmaceutical industries cosmetics and hygienic. This plant, in its young leaves has very important alkaloids which called vinblastine and vincristine which has in chemotherapy of different type of cancers (leukemia, breast and lymph nodes) and its roots contain ajmalicine alkaloids that is used in treatment of hypotension. This research was for investigation of the effect of growth regulator and spraying of zinc and magnesium nanoparticles under the conditions of drought stresses on total alkaloids, anthocyanin, total chlorophyll, the weight of wet and dry branches contain alkaloids, and the number of lateral branches periwinkle herb (Catharanthus roseus (L.) G.DON) arranged as a factorial pot experiment based on a completely randomized design which took place in greenhouse condition during years 2020 and 2021 in Tehran, Iran. In the study of the effects of drought stress and spraying of zinc and magnesium nanoparticles on all investigated traits (total alkaloid, anthocyanin, total chlorophyll, fresh and dry weight of alkaloid-containing branches, and the number of lateral branches), there was a statistically significant difference in A level of 1% was observed (P≤0.01). But in the interactions effects of drought stresses and growth regulator showed the highest effect on wet branches contain alkaloids (P≤0.01).
Hamzeh Khanjani afshar; Mojtaba Jafarzadeh Kenarsari; Mehrdad Chaichi; amin farnia
Abstract
To investigate the effect of zinc and potassium application on some morphological traits and yield of wheat (Triticum aestivum L.) under drought stress, a split-factorial layout based on a randomized complete block design (RCBD) with three replicates were carried out at the experimental farm of the Research, ...
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To investigate the effect of zinc and potassium application on some morphological traits and yield of wheat (Triticum aestivum L.) under drought stress, a split-factorial layout based on a randomized complete block design (RCBD) with three replicates were carried out at the experimental farm of the Research, Education and Extension Center of Agriculture and Natural Resources of Hamadan during 2017-2018. The main plot included irrigation levels (normal and water stress) and the subplot included two factors of foliar application of potassium (K) and zinc (Zn) fertilizers. Potassium fertilizer from K2O source (40%) including 2 L/ha at three levels; I) without fertilizer (control sample), II) leaf spray at the beginning of booting, III) leaf spray after pollination, and zinc fertilizer from water-soluble zinc source (10%) including four liters per ha in three levels; I) without fertilizer (control sample), II) leaf spray at the beginning of booting, III) leaf spray was used after pollination. The results of the analysis of variance showed a significant difference between treatments in all studied traits. Significant differences in all of the traits were observed under stress and normal irrigation. Co-application of potassium and zinc fertilizers compared to the control increased grain yield (4.5%) and RWC (5.8%) evaluated morphological indices under stress conditions.To investigat
Maryam Niazi Ardekani; Vahid Barati; Hamid reza Boostani; Ehsan Bijanzadeh
Abstract
This study was perform at the experimental farm of the College of Agriculture and Natural Resources of Darab, Shiraz University in 2017 - 2018 growing season. A split factorial experiment in a randomized complete block design with three replicates was carried out. Treatments included: two levels of irrigation ...
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This study was perform at the experimental farm of the College of Agriculture and Natural Resources of Darab, Shiraz University in 2017 - 2018 growing season. A split factorial experiment in a randomized complete block design with three replicates was carried out. Treatments included: two levels of irrigation as the main plots [normal irrigation (IRN): irrigation based on the plant's water requirement up to the physiological maturity and another factor was water stress (IRDI): irrigation based on the plant's water requirement up to the anthesis stage (cutting of irrigation after anthesis)]. Also, sub plots were two levels of wheat residues [1. without residue, 2. returning 30% of wheat residue to soil] and four fertilizer sources [N0, no nitrogen fertilizer (control); N100, 100 kg N ha-1; Bio + N50, Biofertilizer (Azospirillum brasilense) + 50 kg N ha-1 and Bio, Biofertilizer (Azospirillum brasilense)]. The results showed that the cut of irrigation after anthesis significantly decreased the micronutrients uptake of shoot and grain in barley. All fertilizer sources increased the uptake of micronutrients especially in normal irrigation conditions. Among the N sources, the Bio + N50 treatment was more effective in micronutrients uptake. Also, the highest grain yield in the normal irrigation and water stress condition was obtained in Bio + N50.
Babak Peikarestan; Mehrdad Yarnia; Hamid Madani; Hossein Heidari Sharif Abad
Abstract
This experiment was carried out on the effect of deficit irrigation and zinc foliar application on chase and challenger sweet corn hybrids in Arak, Islamic Azad University, Agriculture Research Station as a split-plot factorial experiment based on randomized complete block design with three replications ...
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This experiment was carried out on the effect of deficit irrigation and zinc foliar application on chase and challenger sweet corn hybrids in Arak, Islamic Azad University, Agriculture Research Station as a split-plot factorial experiment based on randomized complete block design with three replications during 2014 and 2015. Different levels of water irrigation included full irrigation (control), every furrow irrigation and alternative furrow irrigation were measured assigned to main plot and foliar treatment included non-application of zinc (water sprayed (control), application of drop zinc sulfate (2/1000 lit. ha-1) and fast zinc sulfate (2/1000 lit. ha-1) and two sweet and super sweet corn hybrids by factors in sub plot. Results showed that irrigation patterns, application of the zinc and hybrids and their interaction were significant at 1% of probability in grain yield, grain protein, grain oil content, grain moisture content and proline content in leaves. The highest leaf proline content was observed in every furrow irrigation by 30.21 mg/g which it had 39.86% significant difference with full irrgiation by 21.60 mg/g. The highest grain content was observed in zinc fast foliar application by 28.50 mg/g, while in none zinc spray (control), this amount was reduced to 18.09 mg/g by 57.54% reducing. According to research, alternative irrigation and fast zinc spray on Challenger hybrid is recommendable in deficit water conditions.
leila Soleimanpoor; Ruhollah Naderi; Mehdi Najafi Ghiri
Abstract
Planting of various crops in intercropping may change the amount of nutrients uptake by plants because of morphological and physiological differences in roots. In order to investigate the metal micronutrients uptake of the crops in cereals-legume intercropping a field experiment was performed in 2014-2015 ...
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Planting of various crops in intercropping may change the amount of nutrients uptake by plants because of morphological and physiological differences in roots. In order to investigate the metal micronutrients uptake of the crops in cereals-legume intercropping a field experiment was performed in 2014-2015 in the College of Agriculture of Darab, Shiraz University. Treatments included 10 monoculture (wheat, barley, triticale, pea and bean with and without weeds) and 6 intercropping (wheat + pea, wheat + faba bean, barley + pea, barley + faba bean, triticale + pea and triticale + faba bean with weeds) which laid out in a randomized complete block design (RCBD) with three replicates. Results showed that the treatments had a significant effect on the uptake of Fe, Zn, Cu and Mn by plants so that the highest content of Fe, Zn, Cu and Mn in cereals was obtained in weed-free monoculture triticale (353.2 ppm), barley+faba bean intercropping (20.18 ppm), wheat+faba bean intercropping (23.59 ppm) and weed-free wheat monoculture (28.22 ppm). The highest content of Fe, Zn, Cu and Mn in legumes was obtained in wheat+faba bean intercropping (673.1 ppm), barley+pea intercropping (26.24 ppm), triticale+faba bean intercropping (28.33 ppm) and weed-free faba bean monoculture (32.26 ppm). The ranking of micronutrients uptake by crops and weeds was Fe˃Mn˃Zn.
Mahdieh Amirinejad; Gholamali Akbari; Amin Baghizadeh; Iraj allahdadi; Maryam Shahbazi; Masoomeh Naimi
Abstract
To determine the effects of drought stress and foliar application of zinc and iron on some biochemical parameters of cumin (Cuminum cyminum L.), a greenhouse experiment was carried out at Graduate University of Advanced Technology of Kerman, Iran during 2011-2012. The experiment was conducted in factoriel ...
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To determine the effects of drought stress and foliar application of zinc and iron on some biochemical parameters of cumin (Cuminum cyminum L.), a greenhouse experiment was carried out at Graduate University of Advanced Technology of Kerman, Iran during 2011-2012. The experiment was conducted in factoriel design based on randomized completely block with three replications. Three levels of water deficit 70 (well- watered), 50 and 30 (moderate and severe stress) percent of field capacity with treatments of Zn, Fe, Zn+Fe (5/1000) and non-foliar application (water) were used. Results show positive effects of iron and zinc foliar application under drouth stress on some biochemical parameters of cumin. Maximum quantities of total protein and proline (4.12 and 364.52 mg/gr Fw) and maximum quantities of soluble sugar (5.62 mg/gr Dw) were observed in severe stress with Zn+Fe treatment. Also zinc and iron foliar application decresed malondealdohide (9.16 and 5.06 µM/gr Fw) in moderate and severe stress conditions in cumin leaf, respectively. Drought stress and foliar application increased enzymes activities. Maximum quantities of enzymes activities (catalase: 28.51, gayacol peroxidase: 284.75 and superoxid dismutase: 50.99 U/mg protein) in leaves were observed in severe stress with Zn+Fe treatment too. According to our results, iron and zinc foliar application improves biochemical parameters in cumin under drouth stress.
Rahimeh Hosseinpour; Mahdi Ghajar Sepanlou; Soroosh Salek Gilani
Abstract
In order to study the effect of vermicompost individually and enriched with chemical fertilizer on soil micronutrient content and micronutrient concentration of lettuce (Lactuca sativa L.), athree year experiment was conducted with randomized complete block design in two factors and three replications ...
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In order to study the effect of vermicompost individually and enriched with chemical fertilizer on soil micronutrient content and micronutrient concentration of lettuce (Lactuca sativa L.), athree year experiment was conducted with randomized complete block design in two factors and three replications at the experimental farm of Sari Agricultural Sciences and Natural Resources University in 2008. The main plot included six fertilizer treatments consisting of T1 )control(, T2) chemical fertilizers(, T3 (20 ton.ha-1 of vermicompost enriched with 50 percent chemical fertilizer), T4 (20 ton.ha-1 of vermicompost individually), T5 (40 ton.ha-1 of vermicompost enriched with 50 percent chemical fertilizer) and T6 (40 ton.ha-1 of vermicompost) individually. One – year (2006), two - year (2006-7) and three - year (2006-8) application of that fertilizer were considered as sub plots. The results showed that different treatments had significant effects on the available contant of Fe and Zn of soil, root and shoots and also on Cu and Mn concentration of the lettuce roots. The result also showed that the concentration of the elements in soil and lettuce affected significantly by one year, two year and three year application of these fertilizers. Interaction of the two factors had significant effect on the avaiable Fe an Zn content of soil and Zn concentration of root and shoot. Totally, from 40 ton.ha-1 vermicompost enriched with 50 percent chemical fertilizers, the highest avaiable micronutrient content was obtained in the soil and the higest micronutrient concentration was obtained in root and shoot of lettuce.
mehrshad Barary; sajad kordi; Lotf Ali Gerami; Ali Hatami; Ali Ashraf Mehrabi; Fardin Ghanbari
Abstract
In order to investigate the impact of foliar Zn application in reducing the negative effects of water stress on bean growth and yield, a field experiment was carried out in the Research Field of Ilam University in 2011. The experiment was arranged in split factorial based on a randomized complete block ...
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In order to investigate the impact of foliar Zn application in reducing the negative effects of water stress on bean growth and yield, a field experiment was carried out in the Research Field of Ilam University in 2011. The experiment was arranged in split factorial based on a randomized complete block design with three replications. The experimental factors were water stress including water withholding at flowering, water withholding at pod formation and control (full irrigation) as main plot, and the factorial of Zn application levels including; 0, 2000 and 4000 ppm and two bean cultivars including; Akhtar and Dorsa as sub-plots. Results showed that water stress significantly reduced grain yield and the lowest grain yield obtained from water stress at flowering stage. The highest (3163.6 kg/ha) grain yield achieved by Zn application with 4000 ppm concentration. There was a significant difference between cultivars in different treatments and in overall Dorsa with 3846.4 kg/ha produced the highest grain yield. According to the results the most sensitive stage of bean plants to water stress is flowering stage and Zn application with a concentration of at least 4000 ppm can improve plant tolerance to water deficit.
Mohammad Ali Aboutalebian; Fatemeh Moqisai
Abstract
To evaluate the effect of on-farm seed priming and methods of zinc sulfate application on seed emergence properties, yield and yield components of two corn cultivars, an experiment was conducted as factorial in randomized complete block design with three replications during 2012 at research farm of Bu-Ali ...
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To evaluate the effect of on-farm seed priming and methods of zinc sulfate application on seed emergence properties, yield and yield components of two corn cultivars, an experiment was conducted as factorial in randomized complete block design with three replications during 2012 at research farm of Bu-Ali Sina university, Hamedan. First factor was methods of zinc sulfate application containing four levels of no-application, broadcasting in soil, banding and foliar application. Second factor included on farm primed and no primed seeds and third factor consisted of two corn hybrids (Es-sensor and Biaris). Analysis of variance showed that percentage and rate of emergence of on farm primed seeds increased about 16 and 12% respectively also emergence uniformity coefficient in primed seed while banding zinc sulfate comparing with no-primed seed and broadcasting zinc sulfate showed 74% increase. In Biaris cultivar priming increased significantly the number of kernel per ear. In two cultivars the highest 100 seeds weight was achieved of primed seed plus banding or foliar zinc sulfate application. In this study the highest grain yield was obtained of primed Biaris seed cultivar combined with zinc sulfate banding application ( 1370.42 g/m2) that was higher about 9.6% comparing with no-primed and no zinc sulfate treatment.
Jalal Jalilian; Azimeh Khade; Alireza Pirzad
Abstract
To study effect of Fe and Zn spraying on some characteristics of mungbean, an experiment was designed as factorial based on randomized complete block with three replications in Urmia University, 2012. Treatments were nutrition systems (organic, chemical, integrated and no nutrition) and micronutrients ...
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To study effect of Fe and Zn spraying on some characteristics of mungbean, an experiment was designed as factorial based on randomized complete block with three replications in Urmia University, 2012. Treatments were nutrition systems (organic, chemical, integrated and no nutrition) and micronutrients (Fe, zinc, no foliar application and water spraying). The plant height, pod length, number of pod, number of grain in pod, and grain yield were obtained from plants treated with organic as well as chemical and integrated fertilization systems. With regards to obtain the maximum biomass (3421.8 kg/ha) and eco-friendly benefits of organic system, it is recommended as suitable fertilization treatment. The highest plant height (37.78 cm) and grain yield (800.8 kg/ha) obtained from Zn spraying, while the highest biological yield (3250.80 kg/ha) from Fe spraying and foliar application of micronutrients were the same, statistically. In conclusion, Zn and Fe spraying cause to increase the yield and yield component of mungbean.