scholarly journals A Pivotal Role of Chitosan Nanoparticles in Enhancing the Essential Oil Productivity and Antioxidant Capacity in Matricaria chamomilla L.

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 574
Author(s):  
Ragia Mazrou ◽  
Esmat F. Ali ◽  
Sabry Hassan ◽  
Fahmy A. S. Hassan
Keyword(s):  
Essential Oil ◽  
Antioxidant Capacity ◽  
Foliar Application ◽  
Soluble Sugars ◽  
Chitosan Nanoparticles ◽  
Foliar Spray ◽  
Medicinal Species ◽  
Oil Productivity ◽  
Additional Value ◽  
The Impact

Chitosan is a biopolymer with several biological and agricultural applications. Recently, development of chitosan nanoparticles (CSNPs) adds additional value by further using it as an eco-friendly biostimulant. Therefore, the impact of CSNPs foliar application on the growth, essential oil productivity and antioxidant capacity of chamomile was investigated. Treatments comprised 0, 100, 200, 300 and 400 mg L−1 of CSNPs applied to plants as a foliar spray. CSNPs foliar application improved the growth and productivity of chamomile plants. Relative to the control, the flower yield was increased by 52.10 and 55.74% while the essential oil percentage was increased by 57.14 and 47.06% due to CSNPs at 300 mg L−1 during the two seasons of study. Moreover, CSNPs enhanced the photosynthetic pigments, total soluble sugars and N, P and K percentages. Interestingly, CSNPs increased the antioxidant capacity as measured by total phenolics and the antioxidant activity (DPPH). Collectively, it is suggested that CSNPs might be a promising eco-friendly bio-stimulant and it could be an alternative strategy to improve the productivity, quality and decrease the production cost of chamomile and possibly some other medicinal species.

scholarly journals Impact of zinc fertilization on growth, yield and quality of zero till wheat (Triticum aestivum L.)

2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  
Keyword(s):  
Foliar Application ◽  
Foliar Spray ◽  
Growth Yield ◽  
Triticum Aestivum L ◽  
Recommended Dose ◽  
Zn Deficiency ◽  
Soil Application ◽  
Yield And Quality ◽  
The Impact

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc

scholarly journals ASSESSMENT OF THE IMPACT OF VERMICOMPOST AND PEAT EXTRACTS ON NUTRIENT ACCUMULATION IN TUBERS AND POTATO YIELD

2018 ◽  
Author(s):  
Lidija VOJEVODA ◽  
Anita OSVALDE ◽  
Gunta ČEKSTERE ◽  
Andis KARLSONS
Keyword(s):  
Field Experiments ◽  
Foliar Application ◽  
Seed Tuber ◽  
Solanum Tuberosum L ◽  
Foliar Spray ◽  
Mineral Nutrient ◽  
Research Centre ◽  
Potato Tubers ◽  
The Impact ◽  
Tuber Treatment

Investigations on the potential beneficial effect of humic substances on crop plant cultivation under extremely diverse soil and climatic conditions is of global character, thereby knowledge obtained on the basis of local investigations are of great importance world-wide. The aim of the research was to evaluate the effect of different application methods (seed tuber treatment and foliar application) of commercially-produced peat and vermicompost extracts on nutrient uptake in tubers and yield of potato (Solanum tuberosum L.) using field experiments in organic farming system with potato variety ‘Borodjanskij Rozovij’. The tested extracts from the organic products included: peat extract (K45) and vermicompost extract (B45) obtained at +45°C by cavitation. The investigation was carried out at Stende Research Centre (Institute of Agro-resources and Economics) from 2011 to 2012. The chemical composition (N, P, K, Ca, Mg, S, Fe, Mn, Zn, Cu, Mo, B) of potato tubers was determined. The application of organic extract from vermicompost had a stimulating effect on mineral nutrient as N, P, K, Mg, and S accumulation in potato tubers, but 50% of cases showed reduction in Ca and Cu content that could influence the storage of tubers. The use of peat extract was significantly effective when the tubers were treated before planting. On average, tuber treatment and foliar spray with organic extracts contributed to 10% of tuber yield increase.

Foliar applications of phosphate increase the yield of essential oil inmenthol mint (Mentha arvensis)

2003 ◽  
Vol 43 (10) ◽  
pp. 1263 ◽  
Author(s):  
M. Ram ◽  
R. Singh ◽  
D. Ram ◽  
R. S. Sangwan
Keyword(s):  
Essential Oil ◽  
Orthophosphoric Acid ◽  
Field Experiments ◽  
Foliar Application ◽  
Foliar Spray ◽  
Metabolic Model ◽  
Diammonium Phosphate ◽  
Oil Yield ◽  
Phosphate Effect ◽  
Essential Oil Yield

Field experiments were conducted at Lucknow, India, to study the effect of foliar application of orthophosphoric acid and diammonium phosphate filtrate on the biosynthesis and yield of essential oil in transplanted menthol mint: a foliage rich and vegetatively harvested crop. A foliar spray of 10% diammonium phosphate filtrate on the plants of menthol mint enhanced the biosynthesis of essential oil in the leaves to the extent of 15.6–18.7% over the control. A spray of 0.1% orthophosphoric acid gave an increase in the range 8.0–9.4%. When different varieties of menthol mint were sprayed with 10% diammonium phosphate filtrate, the variety Kosi exhibited 13, 78.3 and 66% higher essential oil yield over the varieties Himalaya, Hariti and Kalka, respectively. At the same concentration of spray, the variety Kosi enhanced the essential oil yield by 60% compared with that of the control. The early transplanted crop (18 March) was found to be good in terms of higher essential oil production by about 31% than the later transplanted crop (31 March). It is recommended that in order to get a high essential oil yield from a transplanted mint crop, a foliar spray of 10% diammonium phosphate filtrate should be applied twice, first in the second week of April and second in the first week of June. The optimum time to transplant mint plantlets in the field is the third week of March. A putative working metabolic model of the phosphate effect on biosynthesis of essential oil in volatile plants has been proposed.

scholarly journals Impact of foliar application of nano micronutrient fertilizers and titanium dioxide nanoparticles on the growth and yield components of barley under supplemental irrigation

2016 ◽  
Vol 107 (2) ◽  
pp. 265 ◽  
Author(s):  
Mohsen JANMOHAMMADI ◽  
Tahereh AMANZADEH ◽  
Naser SABAGHNIA ◽  
Shahryar DASHTI
Keyword(s):  
Titanium Dioxide ◽  
Grain Yield ◽  
Chlorophyll Content ◽  
Foliar Application ◽  
Titanium Dioxide Nanoparticles ◽  
Foliar Spray ◽  
Growth And Yield ◽  
Nano Scale ◽  
The Impact ◽  
Semi Arid

Nano-fertilizers are new generation of the synthetic<em> </em>fertilizers which contain readily available nutrients in nano scale range. Nano fertilizers are preferred largely due to their efficiency and environment friendly nature compared to conventional<em> </em>chemical<em> </em>fertilizers. To evaluate the effects of foliar spray<em> </em>of micronutrient nano-fertilizer (iron and zinc) and nano-titanium dioxide (nTiO<sub>2</sub>) solution on grain yield and its components in barley under supplemental<em> </em>irrigation conditions, a field experiment was carried out in the semi-arid highland region of Maragheh, Iran. Barley plants were separately treated with of chelated nano-scale zinc oxide (ZnO) and ferric oxide (Fe<sub>2</sub>O<sub>3</sub>) suspensions during tillering stage, booting and milky stages. Results revealed that days to<em> </em>anthesis and maturity significantly increased after application of both nano-fertilizers. Furthermore<em>,</em> a considerable improvement was observed in grain mass, spike length, number of the grains per spike, chlorophyll content, grain yield and harvest index by application of nano-fertilizer. However the impact of nano zinc fertilizer was more prominent than iron. Foliar application of nTiO<sub>2</sub> positively affected some morphophysiological characteristics like as days to<em> </em>anthesis, chlorophyll content and straw yield. The results suggest that the delivery of Zn into barley seedling through spray of nano-fertilizer can be an efficient nutrient management strategy in semi-arid regions. Overall, our result indicated that the integration of nanotechnology in fertilizer products can improve fertilizer use efficiency and significantly increase of barley yield. However, plant response to nanoparticles significantly depend on concentration and time of application as well as size, shape, and surface functionalization of the particles.

scholarly journals Assessment of irradiated TiO2 nanoparticles on the growth and nutritional components of broccoli

2021 ◽  
Vol 49 (3) ◽  
pp. 12397
Author(s):  
Amina A. ALY ◽  
Rabab W. MARAEI ◽  
Youssef A. LOUIS ◽  
Gehan SAFWAT
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide ◽  
Foliar Application ◽  
Growth Traits ◽  
Soluble Sugars ◽  
Radical Scavenging ◽  
Foliar Spray ◽  
Physical Quality ◽  
Nutritional Components

Broccoli is highly tremendously as it is enriched with healthy promoting phytochemicals. This research was undertaken to study the feedback of broccoli to different concentrations of un-irradiated and irradiated (50 kGy of gamma rays) titanium dioxide nanoparticles (TiO2NPs). Un-irradiated and irradiated titanium dioxide characterization was accomplished by FT-IR, XRD, TGA, SEM and TEM. Foliar spray of titanium dioxide was applied to the broccoli in regards to the results of the characterizations. The growth traits; plant height, leaves No. per plant as well as stem diameter of plants and physical quality of heads were measured. Also, nutritional components of heads were determined. The results detailed that vegetative growth and physical quality of heads positively responded to foliar application of titanium dioxide compared to those obtained from control and 50 ppm from irradiated titanium dioxide (ITiO2NPs) gave the highest values of all traits. Regarding to nutritional components of heads, the efficiency of photosynthesis increased by using TiO2 (un-irradiated and irradiated) specially, 50 ppm ITiO2NPs. Application of Ti significantly increased the osmolytes concentrations such as proline, total free amino acids and soluble sugars as well as the extracts of heads sprayed with TiO2NPs concentrations displayed a prospective DPPH free radical scavenging action. Likewise, absorption of other nutrient elements and amino acids pool increased by spraying TiO2NPs. It was found that there are several phytochemical constituents identified by GC-MS that contribute to the biological activity of the methanol extract of broccoli heads that were affected by the use of TiO2NPs. It is clear that from above results, the using of ITiO2NPs specially; 50 ppm stimulated growth, resulting in improved quality of broccoli heads which is ultimately reflected in productivity.

scholarly journals Foliar application of polyamines improve some morphological and physiological characteristics of rose

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Fereshteh Yousefi ◽  
Zohreh Jabbarzadeh ◽  
Jafar Amiri ◽  
MirHassan Rasouli-Sadaghiani ◽  
Ali Shaygan
Keyword(s):  
Antioxidant Capacity ◽  
Foliar Application ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Foliar Spray ◽  
Morphological Characteristics ◽  
Dry Weight ◽  
Physiological Characteristics ◽  
Leaf Area And Thickness ◽  
Number Of Leaves

Abstract Objective This experiment was conducted to investigate the effects of foliar spray of polyamines on some morphological and physiological characteristics of rose. Materials and methods Experimental variants involved the type (putrescine, spermidine and spermine) and concentration (0 mM, 1 mM, 2 mM and 4 mM) of polyamines. In this research, the plant height, number of leaves and shoots, leaf area and thickness, fresh and dry weight of leaf and stem, the content of anthocyanin, soluble sugar, phenol and antioxidant capacity were measured 2 weeks after the end of experiment. Results Results indicated that among all polyamine types, putrescine has the highest effect on the morphological characteristics. Among different concentrations of polyamines, the concentration of 1 mM resulted in the highest increase in shoot fresh and dry weight. Putrescine application at 2 mM and 4 mM concentrations increased soluble sugar content. In the present study, polyamine treatment reduced the content of anthocyanin, phenol and antioxidant capacity. Conclusions It can be cocluded that application of polyamines improved some morphological and physiological traits in various ways.

scholarly journals Improving Resistance of Foeniculum Vulgare to Water Deficit Stress by Natural Regulators

2021 ◽  
Vol 67 (1) ◽  
pp. 29-41
Author(s):  
Farshad Sorkhi ◽  
Ramin Rostami ◽  
Kazem Ghassemi-Golezani
Keyword(s):  
Salicylic Acid ◽  
Essential Oil ◽  
Water Deficit ◽  
Seed Yield ◽  
Foliar Application ◽  
Foliar Spray ◽  
Proline Content ◽  
Water Deficit Stress ◽  
Foeniculum Vulgare ◽  
Severe Water Deficit

Abstract This research was conducted as a combined analysis with four replications in two years (2018 ‒ 2019). Treatments were irrigation up to 90%, 50%, and 20% field capacity (as normal irrigation, moderate and severe water deficit stresses, respectively) and foliar application of natural regulators (untreated as control, salicylic acid, spermidine, and methanol). Increasing water deficit stress was led to a significant increase in essential oil percentage and proline content and a significant decrease in yield parameters and seed yield. Most of the traits (except the percentage of essential oil) were affected by natural growth regulators. The highest seed yield (1,127.59 kg/ha), plant biomass (5,426.92 kg/ha), essential oil yield (22.67 kg/ha), and proline content (29.34 μmol/g fresh weight) were obtained in methanol treated plants under normal irrigation. However, the highest amount of these traits under moderate and severe water deficit was recorded for salicylic acid-treated plants. Therefore, foliar spray of methanol was a useful treatment for non-stress conditions, but, application of salicylic acid was the superior treatment for reducing the negative effects of water deficit stress on Foeniculum vulgare.

scholarly journals Effects of Electrical Conductivity, pH, and Foliar Application of Calcium Chloride on Yield and Tipburn of Lactuca sativa Grown Using the Nutrient–Film Technique

HortScience ◽  
2020 ◽  
Vol 55 (8) ◽  
pp. 1265-1271
Author(s):  
Uttara Samarakoon ◽  
Jack Palmer ◽  
Peter Ling ◽  
James Altland
Keyword(s):  
Electrical Conductivity ◽  
Calcium Chloride ◽  
Foliar Application ◽  
Maximum Yield ◽  
Foliar Spray ◽  
Yield Reduction ◽  
Nutrient Film Technique ◽  
Constant Ph ◽  
Ph Management ◽  
The Impact

Yield reduction resulting from high temperatures and tipburn are common issues during the summer for hydroponically grown lettuce using the nutrient–film technique (NFT). We investigated the yield and degree of tipburn of lettuce ‘Red Butter’, ‘Green Butter’, and ‘Red Oakleaf’ of the Salanova® series under different-solution electrical conductivity (EC) and pH levels. We also quantified the effect of foliar spray application of calcium chloride (CaCl2) on the yield and degree of tipburn using the lettuce cultivar Green Butter. For the EC experiment, the plants were grown at four EC levels (1.4, 1.6, 1.8, or 2.0 mS·cm–1) and a constant pH of 5.8. For the pH experiment, the plants were grown at and four pH levels (5.8, 6.0, 6.2, or 6.4) and a constant EC of 1.8 mS·cm–1. For the foliar spray experiment, CaCl2 was applied 1 week after transplanting into NFT channels at three different concentrations: 0, 200, 400, or 800 mg·L calcium (Ca). During the EC trial, the maximum yields were observed at or more than 1.8 mS·cm–1 for ‘Green Butter’ (263 ± 14 g/head) and ‘Red Butter’ (202 ± 8 g), and more than 1.6 mS·cm–1 for ‘Red Oakleaf’ (183 ± 6 g). The yield of ‘Green Butter’ was 75 g less at 1.4 mS·cm–1 compared with 1.8 mS·cm–1. Tipburn symptoms were less at 1.4 mS·cm–1 for ‘Green Butter’ whereas other cultivars were not highly susceptible. In pH trials, the maximum yield for all cultivars was found at pH 6.0 and 6.2. There were no differences in tipburn symptoms among all pH levels. The foliar spray treatment, twice a week at 400 or 800 mg·L–1 Ca, provided improved tipburn control, as the tipburn symptoms were minimal and the impact on yield was minor compared with reducing EC. This series of experiments found evidence in proper EC and pH management for optimum yield and tipburn control in NFT lettuce grown in summer conditions.

scholarly journals Impact of Ascorbic Acid Foliar Spray and Seed Treatment with Cyanobacteria on Growth and Yield Component of Sunflower Plants under Saline Soil Conditions

2019 ◽  
Vol 76 ◽  
pp. 136-146
Author(s):  
Abdel Nasser A.A. Abdel-Hafeez ◽  
Taia A. Abd El-Mageed ◽  
Mostafa M. Rady
Keyword(s):  
Ascorbic Acid ◽  
Seed Yield ◽  
Field Experiments ◽  
Foliar Application ◽  
Saline Soil ◽  
Soluble Sugars ◽  
Foliar Spray ◽  
Growth And Yield ◽  
Control Treatment ◽  
Soil Conditions

A field experiments were conducted during the two summer seasons of 2015 and 2016 in saline soil (ECe = 9.0 dSm-1), at Fayoum province, Egypt to study the effect of ascorbic (AsA), as foliar application alone or combined with cyanobacteria (CB) on growth, yield, its components and nutritional status of sunflower plants variety Sakha 54. Treatments comprised 2 ascorbic acid (AsA) levels with or without seed inoculation with cyanobacteria (CB). They were 1 mM AsA, 2 mM AsA, 1 mM AsA + CB and 2 mM AsA + CB in addition to the control treatment in which seeds were not received CB and their plants were sprayed with distilled water. Results could be summarized as follows: increasing the addition of ascorbic acid concentration up to 1Mm with combination of CB increased significantly values of growth attributes (e.i., plant height, of leaves no. /plant, shoot dry weight and leaf area), photosynthetic pigments (chlorophyll a, b and carotenoids), physiological responses (total soluble sugars, proline and soluble phenols) as well as the head diameter, seed yield/ plant, 100 seed weight and seed yield (t ha-1). Also, N, P, K, Fe, Mn, Zn and oil percentage of sunflower seeds with compared to control treatment in both years. Generally, the results in most cases, demonstrate that the all parameters increased significantly by using the concentration of ascorbic acid 1Mm combined with CB in both seasons

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