Response of manfalouty Pomegranate trees to foliar application of humic acid and amino acids

BACKGROUND: The strawberry is an important commercial crop, the improvement of its yield and quality is an imperative task. OBJECTIVE: The present research aimed to study the effect of colored netting and foliar application of amino acids on the physiological characteristics of strawberries subjected to different irrigation intervals. METHODS: The study was carried out as a factorial experiment based on a randomized complete block design with three factors including colored net at 4 levels (no netting, green, red, and yellow netting), organic acids at 4 levels (control, humic acid, glutamine, and arginine), and three levels of irrigation intervals (2, 4, and 6 days) in the greenhouse of Lahijan Agricultural Research Station, Iran. RESULTS: The results showed that the highest leaf number, shoot weight, chlorophyll and carotenoid content were related to yellow netting. The highest fruit yield, anthocyanins, and flavonoids were observed in the treatments of no-netting, green netting, and red netting, respectively. Data for the effect of organic acids showed that the glutamine-treated plants exhibited the highest yield, the humic acid-treated plants displayed the highest anthocyanin and carotenoid content, and the arginine-treated plants demonstrated the highest vitamin C content. The irrigation interval of 6 days caused to the lowest leaf number, flower and fruit number, shoot weight, fruit yield, and carotenoid content. Data for the trilateral effect of ‘netting×organic acid×irrigation’ showed that the highest flower number and fruit yield were obtained from ‘green netting×glutamine×4 days’, the highest anthocyanin content was obtained from ‘green netting×humic acid×2 days’, and the highest chlorophyll content was obtained from ‘green netting×control×6 days’. The treatment of ‘yellow netting×control×2 days’ was related to the highest flavonoid content. CONCLUSIONS: The application of colored nets provides the strawberry with more optimal vegetative and reproductive growth.

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

Plants ◽

10.3390/plants10030599 ◽

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.

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

Ornamental Horticulture ◽

10.1590/2447-536x.v27i1.2231 ◽

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.

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Response of Onion Crop to Foliar Application by Amino Acids, Yeast extract and Boron in Upper Egypt

Assiut Journal of Agricultural Sciences ◽

10.21608/ajas.2019.33496 ◽

2019 ◽

Vol 50 (1) ◽

pp. 149-159

Keyword(s):

Amino Acids ◽

Yeast Extract ◽

Foliar Application ◽

Upper Egypt

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EFFECT OF FOLIAR APPLICATION OF ORGANIC EXTRACT AND HAMIC ACID APPLICATION ON STRAWBERY PRODACTION

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v47i3.564 ◽

2016 ◽

Vol 47 (3) ◽

Author(s):

AL- Karawi & Al-Rawi

Keyword(s):

Organic Matter ◽

Humic Acid ◽

Foliar Application ◽

Fruit Weight ◽

Distilled Water ◽

College Of Agriculture ◽

Organic Extract ◽

Four Levels ◽

Effect On Yield ◽

Spraying Plants

This study was carried out in greenhouse Date to palm Research units, College of Agriculture, University of Baghdad ( Abu Ghraib ) , seasons 2013 and 2014 to investigate the effect of foliar application organic matter extract and humic acid and their interactions on yield of strawberry plants . The study include 12 treatments , to spray strawberry's plant with four levels of organic matter spray included distilled water only (T0) , (1) volume of organic matter extract to volume of distilled water ( 1:1) (T1) , (2) volume of organic matter extract to volume of distilled water (2:1 ) (T2 ) and (3) volume of organic matter extract volume of distilled water (3:1) (T3), the second factor was three concentrations of humifert-ultra , 0( H0 ) , 2.5 ml.L-1 ( H2.5) and 5 ml.L-1 ( H5 ) to the soil . Factorial Experiment carried out according to RCBD with three replications , averages compared by LSD test at the level of 5% probability. Results that have been obtained is that spraying plants extract organic matter led to a significant increase in the number of flowers and the percentage of the contract and the number of fruits and had no significant effect on yield of plant. addition of humic acid led to a significant increase in the number of flowers and the percentage of fruit set and the number of fruits and fruit weight and yield of plant .

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Relief Role of Lysine Chelated Zinc (Zn) on 6-Week-Old Maize Plants under Tannery Wastewater Irrigation Stress

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17145161 ◽

2020 ◽

Vol 17 (14) ◽

pp. 5161

Author(s):

Rehan Ahmad ◽

Wajid Ishaque ◽

Mumtaz Khan ◽

Umair Ashraf ◽

Muhammad Atif Riaz ◽

...

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Plant Growth ◽

Foliar Application ◽

Antioxidant Activities ◽

Foliar Spray ◽

Tannery Wastewater ◽

Organic Load ◽

Maize Plants

Tannery wastewater mainly comes from leather industries. It has high organic load, high salinity, and many other pollutants, including chromium (Cr). Tannery wastewater is generally used for crop irrigation in some areas of Pakistan and worldwide, due to the low availability of good quality of irrigation water. As tannery wastewater has many nutrients in it, its lower concentration benefits the plant growth, but at a higher concentration, it damages the plants. Chromium in tannery wastewater accumulates in plants, and causes stress at physiological and biochemical levels. In recent times, the role of micronutrient-amino acid chelated compounds has been found to be helpful in reducing abiotic stress in plants. In our present study, we used lysine chelated zinc (Zn-lys) as foliar application on maize (Zea mays L.), growing in different concentrations of tannery wastewater. Zinc (Zn) is required by plants for growth, and lysine is an essential amino acid. Maize plants were grown in tannery wastewater in four concentrations (0, 25%, 50%, and 100%) and Zn-lys was applied as a foliar spray in three concentrations (0 mM, 12.5 mM, and 25 mM) during plant growth. Plants were cautiously harvested right after 6 weeks of treatment. Foliar spray of Zn-lys on maize increased the biomass and improved the plant growth. Photosynthetic pigments such as total chlorophyll, chlorophyll a, chlorophyll b and contents of carotenoids also increased with Zn-lys application. In contrast to control plants, the hydrogen peroxide (H2O2) contents were increased up to 12%, 50%, and 68% in leaves, as well as 16%, 51% and 89% in roots at 25%, 50%, and 100% tannery water application, respectively, without Zn-lys treatments. Zn-lys significantly reduced the damages caused by oxidative stress in maize plant by decreasing the overproduction of H2O2 and malondialdehyde (MDA) in maize that were produced, due to the application of high amount of tannery wastewater alone. The total free amino acids and soluble protein decreased by 10%, 31% and 64% and 18%, 61% and 122% at 25%, 50% and 100% tannery water treatment. Zn-lys application increased the amino acids production and antioxidant activities in maize plants. Zn contents increased, and Cr contents decreased, in different parts of plants with Zn-lys application. Overall, a high concentration of tannery wastewater adversely affected the plant growth, but the supplementation of Zn-lys assertively affected the plant growth and enhanced the nutritional quality, by enhancing Zn and decreasing Cr levels in plants simultaneously irrigated with tannery wastewater.

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Morphological and Physiological Responses Induced by Protein Hydrolysate-Based Biostimulant and Nitrogen Rates in Greenhouse Spinach

Agronomy ◽

10.3390/agronomy9080450 ◽

2019 ◽

Vol 9 (8) ◽

pp. 450 ◽

Cited By ~ 16

Author(s):

Petronia Carillo ◽

Giuseppe Colla ◽

Giovanna Marta Fusco ◽

Emilia Dell’Aversana ◽

Christophe El-Nakhel ◽

...

Keyword(s):

Amino Acids ◽

Spinacia Oleracea ◽

Foliar Application ◽

Protein Hydrolysate ◽

Photochemical Efficiency ◽

Amino Acid Content ◽

Fertilization Rate ◽

N Fertilization ◽

Total Amino Acid ◽

Acquisition Response

Plant-derived protein hydrolysates (PHs) are gaining prominence as biostimulants due to their potential to improve yield and nutritional quality even under suboptimal nutrient regimens. In this study, we investigated the effects of foliar application of a legume-derived PH (0 or 4 mL L−1) on greenhouse baby spinach (Spinacia oleracea L.) under four nitrogen (N) fertilization levels (0, 15, 30, or 45 kg ha−1) by evaluating morphological and colorimetric parameters, mineral composition, carbohydrates, proteins, and amino acids. The fresh yield in untreated and biostimulant-treated spinach plants increased in response to an increase in N fertilization from 1 up to 30 kg ha−1, reaching a plateau thereafter indicating the luxury consumption of N at 45 kg ha−1. Increasing N fertilization rate, independently of PH, lead to a significant increase of all amino acids with the exception of alanine, GABA, leucine, lysine, methionine, and ornithine but decreased the polyphenols content. Interestingly, the fresh yield at 0 and 15 kg ha−1 was clearly greater in PH-treated plants compared to untreated plants by 33.3% and 24.9%, respectively. This was associated with the presence in of amino acids and small peptides PH ‘Trainer®’, which act as signaling molecules eliciting auxin- and/or gibberellin-like activities on both leaves and roots and thus inducing a “nutrient acquisition response” that enhances nutrients acquisition and assimilation (high P, Ca, and Mg accumulation) as well as an increase in the photochemical efficiency and activity of photosystem II (higher SPAD index). Foliar applications of the commercial PH decreased the polyphenols content, but on the other hand strongly increased total amino acid content (+45%, +82%, and +59% at 0, 15, and 30 kg ha−1, respectively) but not at a 45-kg ha−1-rate. Overall, the use of PH could represent a sustainable tool for boosting yield and nitrogen use efficiency and coping with soil fertility problems under low input regimens.

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Biological and environmental media control oxide nanoparticle surface composition: the roles of biological components (proteins and amino acids), inorganic oxyanions and humic acid

Environmental Science Nano ◽

10.1039/c4en00215f ◽

2015 ◽

Vol 2 (5) ◽

pp. 429-439 ◽

Cited By ~ 36

Author(s):

Imali A. Mudunkotuwa ◽

Vicki H. Grassian

Keyword(s):

Amino Acids ◽

Humic Acid ◽

Surface Composition ◽

Environmental Matrices ◽

Environmental Media ◽

Media Control ◽

Nanoparticle Surface ◽

Oxide Nanoparticle

Evolution of nanoparticle surface composition in increasingly complex biological and environmental matrices.

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Effect of Exogenous Application of Amino Acids L-Arginine and Glycine on Maize under Temperature Stress

Agronomy ◽

10.3390/agronomy10060769 ◽

2020 ◽

Vol 10 (6) ◽

pp. 769 ◽

Cited By ~ 3

Author(s):

Kinga Matysiak ◽

Roman Kierzek ◽

Idzi Siatkowski ◽

Jolanta Kowalska ◽

Roman Krawczyk ◽

...

Keyword(s):

Amino Acids ◽

Temperature Stress ◽

Foliar Application ◽

Lateral Roots ◽

Thermal Conditions ◽

Growth Stages ◽

Exogenous Application ◽

C 23 ◽

Negative Effect ◽

Positive Effect

Temperature strongly influences the growth of maize, particularly in the early growth stages. The exogenous application of some amino acids has been proven to have a positive effect on plant growth and development under stressful conditions. The objective of the study was to evaluate the response of maize that was grown under an optimal and stress (fluctuating) temperature to L-Arginine (L-Arg) and Glycine (Gly) application. In the study, it was assumed that the exogenously applied amino acids would alleviate the adverse effects of temperature stress on the maize height, as well as on the biomass of shoots and roots. Ten concentrations of each amino acid from 0.006 mM to 9.0 mM were tested under constant temperature conditions 20–22 °C/23–25 °C (night/day) an fluctuating stress of rising and dropping temperatures between 12–15 °C (night) and 30–38 °C (day). The amino acids were applied to the crop at growth stages V3–V4. In plants that were obtained from seeds pre-treated with L-Arg and Gly, the amino acids increased both the length of radicles and the number of lateral roots. A large discrepancy between the effects of the two amino acids was observed after foliar application. Under optimal thermal conditions, L-Arg increased the mass of shoots and roots by 55–59%. Under stress conditions, root mass was increased even by 100% when compared to the control plants. The best results were recorded at concentrations of 6 mM and 3 mM. Plants that were treated with Gly concentrations generally reached the height of untreated plants or less. It was shown that Gly applied at concentrations of 0.2 mM to 3 mM has a negative effect on the fresh mass of the crop.

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