scholarly journals The effect of foliar application of Ulva rigida extract on the growth and biochemical parameters of wheat plants

2021 ◽  
Vol 234 ◽  
pp. 00103
Author(s):  
Salma Latique ◽  
Reda Ben Mrid ◽  
Imad Kabach ◽  
Abdelaziz Yasri ◽  
Anass Kchikich ◽  
...  
Keyword(s):  
Amino Acids ◽  
Biochemical Parameters ◽  
Foliar Application ◽  
Growth Parameters ◽  
Marine Macroalgae ◽  
Mineral Element ◽  
Ulva Rigida ◽  
Effective Technique ◽  
Liquid Extract ◽  
Green Seaweed

Many research studies have shown the importance of seaweed extract in agriculture. Marine macroalgae are rich in diverse compounds like lipids, proteins, carbohydrates, phytohormones, amino acids, osmoprotectants and minerals. In this study, we have tried to characterize Moroccan macroalgae species Ulva rigida collected from the coastal area of Akhfenir in order to evaluate their potential to improve growth plant. The proximate composition, mineral element (Ca, K, Mg, Na and Cl), pigments, amino acid, proteins, lipids, polyphenol contents were determined in liquid extract obtained from green seaweed (SWE) Ulva rigida. Results show that the application of SWE at different concentrations (0,12.5, 25, 50%) significantly enhanced growth parameters, especially with 25% of seaweed liquid extract. Therefore, algal treatment by foliar application is proved to be an effective technique to improve the growth of wheat plants. This study provides important information on the characterization, identification and utilization of seaweed resources for agriculture as biostimulants.

scholarly journals Dry Mass Increment, Foliar Nutrientes and Soybean Yield as Affected by Aminoacid Application

2019 ◽  
Vol 11 (18) ◽  
pp. 230
Author(s):  
Walquíria F. Teixeira ◽  
Evandro B. Fagan ◽  
Luís H. Soares ◽  
Klaus Reichardt ◽  
Leidyanne G. Silva ◽  
...  
Keyword(s):  
Amino Acids ◽  
Seed Treatment ◽  
Foliar Application ◽  
Growth Parameters ◽  
Dry Mass ◽  
Soybean Crop ◽  
Mass Increment ◽  
Soybean Plants ◽  
The One ◽  
Foliar Concentration

Due to the importance of soybeans worldwide, there is a constant search for products or management systems that aim to increase the productivity of this crop. In this sense, some products that have amino acids in their composition have been used, however, there is still a lack of studies that aim to show the isolated effect of amino acids on growth parameters. Therefore, the present study aimed to evaluate the effect of the application of amino acids in the treatment of seeds and of the leaf in the soybean crop. Experiments were carried out in a greenhouse and in the field with the application of glutamate, phenylalanine, cysteine, glycine as a seed treatment (ST) and also as foliar application (FA) at the V4 growth stage. The dry mass accumulation of root, stem, leaves, total and yield of a soybean crop were evaluated. In addition, leaf element concentration in leaves was also evaluated. The use of phenylalanine in ST promoted the best results on stem mass, leaves, pods and total dry mass, with an increase of up to 152%, as compared to control. This same treatment led to higher productivity, with a 46% increase in relation to the control. In relation to foliar concentration of elements, the most effective application is the one that is carried out in both modes of application (ST and FA), mainly with glutamate and glycine. Therefore, the application of amino acids, especially in seed treatment promotes the greater accumulation of dry mass and productivity in soybean plants.

scholarly journals Impact of Foliar Application of Amino Acids on Total Phenols, Phenolic Acids Content of Different Mints Varieties under the Field Condition

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 599
Author(s):  
Živilė Tarasevičienė ◽  
Aloyzas Velička ◽  
Aurelija Paulauskienė
Keyword(s):  
Amino Acids ◽  
Phenolic Compounds ◽  
Phenolic Acids ◽  
Foliar Application ◽  
Mentha Piperita ◽  
Total Phenolic ◽  
Total Phenol Content ◽  
Individual Response ◽  
Total Phenols ◽  
Wide Range

Phenolic compounds have a number of benefits to human health and can be used as preventive compounds for the development of some chronic diseases. Mentha plants are not only a good source of essential oils, but also contain significant levels of wide range of phenolic compounds. The aim of this research was to investigate the possibility to increase phenols content in Mentha plants under the foliar application with L-phenylalanine, L-tryptophan, L-tyrosine at two concentrations (100 mg L−1 and 200 mg L−1) and to create preconditions for using this plant for even more diverse purposes. Quantitative and qualitative analyses of phenols in mints were performed by HPLC method. Foliar application of amino acids increased the total phenol content from 1.22 to 3.51 times depending on the treatment and mint variety. The most pronounced foliar application to total phenols content was tryptophane especially in Mentha piperita “Swiss”. Mentha piperita “Swiss” was affected most by foliar application and the amount of total phenolic acids depending on the treatment ranged from 159.25 to 664.03 mg 100 g−1 (DW), respectively, non-sprayed and sprayed with tryptophane 100 mg L−1. Our results suggest that the biophenol content varies according to such factors as foliar application and variety, and every single mint variety has individual response to different applications of amino acids.

scholarly journals Supplemental Selenium and Boron Mitigate Salt-Induced Oxidative Damages in Glycine max L.

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2224
Author(s):  
Mira Rahman ◽  
Khussboo Rahman ◽  
Khadeja Sultana Sathi ◽  
Md. Mahabub Alam ◽  
Kamrun Nahar ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Salt Stress ◽  
Antioxidant Defense ◽  
Foliar Application ◽  
Growth Parameters ◽  
Monodehydroascorbate Reductase ◽  
Ros Scavenging ◽  
H2o2 Content ◽  
Mda Content ◽  
Different Levels

The present investigation was executed with an aim to evaluate the role of exogenous selenium (Se) and boron (B) in mitigating different levels of salt stress by enhancing the reactive oxygen species (ROS) scavenging, antioxidant defense and glyoxalase systems in soybean. Plants were treated with 0, 150, 300 and 450 mM NaCl at 20 days after sowing (DAS). Foliar application of Se (50 µM Na2SeO4) and B (1 mM H3BO3) was accomplished individually and in combined (Se+B) at three-day intervals, at 16, 20, 24 and 28 DAS under non-saline and saline conditions. Salt stress adversely affected the growth parameters. In salt-treated plants, proline content and oxidative stress indicators such as malondialdehyde (MDA) content and hydrogen peroxide (H2O2) content were increased with the increment of salt concentration but the relative water content decreased. Due to salt stress catalase (CAT), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), glyoxalase I (Gly I) and glyoxalase II (Gly II) activity decreased. However, the activity of ascorbate peroxidase (APX), glutathione reductase (GR), glutathione peroxidase (GPX), glutathione S-transferase (GST) and peroxidase (POD) increased under salt stress. On the contrary, supplementation of Se, B and Se+B enhanced the activities of APX, MDHAR, DHAR, GR, CAT, GPX, GST, POD, Gly I and Gly II which consequently diminished the H2O2 content and MDA content under salt stress, and also improved the growth parameters. The results reflected that exogenous Se, B and Se+B enhanced the enzymatic activity of the antioxidant defense system as well as the glyoxalase systems under different levels of salt stress, ultimately alleviated the salt-induced oxidative stress, among them Se+B was more effective than a single treatment.

scholarly journals Pruning intensity and amino acids tryptophan and glycine on growth and flowering of Jasminum sambac

2021 ◽  
Vol 27 (1) ◽  
pp. 20-25
Author(s):  
Ziyad Khalf Salih ◽  
Seyedeh Somayyeh Shafiei Masouleh ◽  
Mohamed Abdulla Ahmed ◽  
Marwan Abdulla Sanam
Keyword(s):  
Amino Acids ◽  
Essential Oil ◽  
Foliar Application ◽  
Ground Level ◽  
Growth And Yield ◽  
Reproductive Growth ◽  
Above Ground Level ◽  
Evergreen Shrub ◽  
Jasminum Sambac ◽  
Pruning Intensity

Abstract Jasmine (Jasminum sambac L.) is an evergreen shrub and very fragrant, which has a very importance in the perfume industry and its flowers are used in different religious and ceremonies. Training the shrubs for more yields of flowers and essential oil with horticultural improvement effects of pruning and amino acids may help gardeners to achieve more benefits. This study aimed to investigate the effects of pruning intensity (without pruning, 40, 60 or 75 cm above ground level) and foliar application of amino acids (without amino acids, tryptophan or glycine) on jasmine shrubs for promoting growth and reproductive growth and the content of essential oil. The results showed that plants with light pruning (75 cm) and foliar application of amino acids especially glycine had the best growth and yield, which means that plants were affected by the interactions of pruning level and application of amino acids.

scholarly journals Combined Influence of Chitosan and Calcium Chloride on Fusarium Dry Rot Disease Under Field Conditions

2020 ◽  
Vol 14 (1) ◽  
pp. 339-344
Author(s):  
Sabah R. Mohammed ◽  
Ivan D. Eskov ◽  
Elsayed M. Zeitar
Keyword(s):  
Plant Height ◽  
Calcium Chloride ◽  
Tuber Yield ◽  
Foliar Application ◽  
Growth Parameters ◽  
Disease Incidence ◽  
Field Conditions ◽  
Dry Rot ◽  
Fusarium Dry Rot ◽  
Rot Disease

Background: Fusarium dry rot disease caused by Fusarium sambucinum Fuckel (F. sambucinum) can infect the potato tubers in the field and during storage. Yield losses by F. sambucinum reach 60%. Traditional methods to control Fusarium dry rot are fungicides application, which led to developing many isolates resistant to these fungicides. Objective: The aim of this study is to evaluate the effect of calcium chloride (CaCl2) and chitosan, alone or in combination, on plant development, tuber yield, and Fusarium dry rot disease incidence under field conditions. Methods: Soil inoculated with F. sambucinum before planting. We treated the seed tubers with CaCl2 (0.5 or 1%), chitosan 0.5%, or both. The foliage was sprayed twice with CaCl2 (0.5 or 1%), 0.1% chitosan, or both. During the vegetation period, growth parameters, such as germination (%), plant height (cm), and branches number per plant, were measured. At harvest, we calculated the total and the marketable number of tubers and tuber yield. In addition, during storage, we assessed the incidence of Fusarium dry rot disease on tubers. Results: Results revealed that combined pre-planting application with 1% CaCl2 and 0.5% chitosan with 2 hours intervals, then spraying foliar with 1% CaCl2 and 0.1% chitosan twice with ten days intervals starting at 40 days after planting resulted in: a) increasing the germination, enhancing the growth parameters such as plant height and branches number per plant; b) enhancing the marketable tuber yield by 75.2 and 97.6% in Sante and Kolobok varieties, respectively; c) reducing Fusarium dry rot disease incidence by 61.9-72.7%. Conclusion: The work highlighted that the combined pre-planting and foliar application of CaCl2 and chitosan might be recommended for potato producers to reduce the incidence of Fusarium dry rot disease and augment yields.

scholarly journals Effect of Foliar Application of Growth Regulators on Vegetative and Physiological Growth Parameters in Ajowan (Trachyspermum ammi L. Sprague)

2020 ◽  
pp. 100-109
Author(s):  
Y. Rajasekhara Reddy ◽  
G. Ramanandam ◽  
P. Subbaramamma ◽  
A. V. D. Dorajeerao
Keyword(s):  
Leaf Area ◽  
Foliar Application ◽  
Growth Parameters ◽  
Block Design ◽  
Foliar Spray ◽  
Dry Weight ◽  
Area Index ◽  
Chlorophyll Contents ◽  
Trachyspermum Ammi ◽  
Number Of Leaves

A field experiment was carried out during rabi season of 2018-2019, at college farm, College of Horticulture, Dr. Y.S.R. Horticultural University, Venkataramannagudem, West Godavari District, Andhra Pradesh. The experiment was laidout in a Randomised Block Design with eleven treatments (viz., T1- NAA @ 50 ppm, T2-NAA @ 100 ppm, T3-GA3 @ 50 ppm,  T4-GA3 @ 100 ppm, T5-Thiourea @ 250 ppm, T6-Thiourea @ 500 ppm, T7-28-Homobrassinolide @ 0.1 ppm, T8-28-Homobrassinolide @ 0.2 ppm, T9-Triacontinol @ 2.5 ppm, T10-Triacontinol @ 5 ppm, T11-(Control) Water spray) and three replications. The treatments were imposed at 30 and 45 DAT in the form of foliar spray. Foliar application of GA3@ 100 ppm (T4) had recorded the maximum plant height (108.20 cm), leaf area (9.53 cm2) and leaf area index (0.74). Foliar application of thiourea @ 250 ppm (T5) had recorded the maximum values with respect to number of primary branches (15.03 plant-1), number of secondary branches (83.40 plant-1), plant spread (1793 cm2 plant-1), fresh weight (376.29 g plant-1), dry weight (103.54 g plant-1) and number of leaves plant-1((298.8). The same treatment (T5) had recorded the highest values with respect to crop growth rate (1.44 gm-2d-1), chlorophyll-a (1.40 mg g-1), chlorophyll-b (0.076 mg g-1) and total chlorophyll contents (1.48 mg g-1) in the leaves.

scholarly journals Growth and Gas Exchange of Cucurbita pepo L. Under Nitrogen and Silicon Fertilization

2019 ◽  
Vol 11 (9) ◽  
pp. 83
Author(s):  
Jackson de M. Alves ◽  
Alex S. de Lima ◽  
Cesenildo de F. Suassuna ◽  
Francisco R. A. Figueiredo ◽  
Toshik Iarley da Silva ◽  
...  
Keyword(s):  
Cucurbita Pepo ◽  
Polynomial Regression ◽  
Foliar Application ◽  
Growth Parameters ◽  
Block Design ◽  
Limiting Factor ◽  
Simultaneous Application ◽  
Gas Exchanges ◽  
Nitrogen Levels ◽  
Randomized Block Design

Zucchini (Cucurbita pepo L.) is a horticultural crop of great socioeconomic importance in Brazil and in the world. However, inappropriate fertilization management, such as over-fertilization of soils, may become a limiting factor for its development. Thus, the aim of this study was to evaluate the morpho-physiological behavior of zucchini submitted to nitrogen (N) doses applied via soil and foliar application of silicon (Si). The treatments were distributed in split-plot scheme in a randomized block design, with three replications. The plot was formed by silicon levels (0.0 and 6.0 g plant-1) and the subplots constituted by five nitrogen levels (30, 60, 90, 120 and 150 kg ha-1), adding up to 30 experimental units. Gas exchanges and growth parameters were assessed at 35 days after planting. The data were submitted to analysis of variance by the F test and in the cases of significance was performed a polynomial regression analysis for the nitrogen factor and Tukey test for the silicon factor. The supply of Si positively enhances the effects of N on growth characteristics and gas exchanges of zucchini. The simultaneous application of Si and N does not influence the leaf area of zucchini. The N dose of 93.9 kg ha-1 provides greater assimilation of CO2 in zucchini plants under the conditions in which the experiment was performed.

scholarly journals Glutamine and cystine-enriched diets modulate aquaporins gene expression in the small intestine of piglets

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245739
Author(s):  
Inês Vieira da Silva ◽  
Bárbara P. Soares ◽  
Catarina Pimpão ◽  
Rui M. A. Pinto ◽  
Teresa Costa ◽  
...  
Keyword(s):  
Amino Acids ◽  
Small Intestine ◽  
Amino Acid ◽  
Biochemical Parameters ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Mrna Levels ◽  
Promising Target ◽  
Dietary Treatments ◽  
Glycerol Permeability

The regulation of glycerol permeability in the gastrointestinal tract is crucial to control fat deposition, lipolysis and gluconeogenesis. Knowing that the amino acid glutamine is a physiological regulator of gluconeogenesis, whereas cystine promotes adiposity, herein we investigated the effects of dietary supplementation with glutamine and cystine on the serum biochemical parameters of piglets fed on amino acid-enriched diets, as well as on the transcriptional profile of membrane water and glycerol channels aquaporins (AQPs) in the ileum portion of the small intestine and its impact on intestinal permeability. Twenty male piglets with an initial body weight of 8.8 ± 0.89 kg were allocated to four dietary treatments (n = 5) and received, during a four week-period, a basal diet without supplementation (control) or supplemented with 8 kg/ton of glutamine (Gln), cystine (Cys) or the combination of the two amino acids in equal proportions (Gln + Cys). Most biochemical parameters were found improved in piglets fed Gln and Cys diet. mRNA levels of AQP3 were found predominant over the others. Both amino acids, individually or combined, were responsible for a consistent downregulation of AQP1, AQP7 and AQP10, without impacting on water permeability. Conversely, Cys enriched diet upregulated AQP3 enhancing basolateral membranes glycerol permeability and downregulating glycerol kinase (GK) of intestinal cells. Altogether, our data reveal that amino acids dietary supplementation can modulate intestinal AQPs expression and unveil AQP3 as a promising target for adipogenesis regulation.

Sign in / Sign up

Export Citation Format

Share Document