scholarly journals Impacts of Effective Microorganisms, Compost Tea, Fulvic Acid, Yeast Extract, and Foliar Spray with Seaweed Extract on Sweet Pepper Plants under Greenhouse Conditions

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1927
Author(s):  
Mostafa H. M. Mohamed ◽  
Rokayya Sami ◽  
Amina A. M. Al-Mushhin ◽  
Maha Mohamed Elsayed Ali ◽  
Heba S. El-Desouky ◽  
...  
Keyword(s):  
Fulvic Acid ◽  
Yeast Extract ◽  
Chemical Constituents ◽  
Foliar Spray ◽  
Sweet Pepper ◽  
Fruit Yield ◽  
Seaweed Extract ◽  
Compost Tea ◽  
Effective Microorganisms ◽  
Pepper Plants

Sweet pepperincludes several vitamins and is regarded as a great source of bioactive nutrients, such as carotenoids and phenolic compounds, for human growth and activities. This work aimed to investigate the effects of the soil addition of growth stimulants, namely, effective microorganisms (EM), compost tea, fulvic acid, and yeast extract, and foliar applications of seaweed extract, on the vegetative growth, enzyme activity, phytohormones content, chemical constituents of plant foliage, fruit yield, and fruit quality of sweet pepper plants (Capsicum annuum L. cv. Zidenka) growing under greenhouse conditions. The results showed that the tallest plant, largest leaf area/plant, and heaviest plant fresh and dry weights were recorded after combining a soil addition of yeast extract and foliar spray with seaweed extracts at 3 g/L in two growing seasons. The highest number of fruit/plant, fruit yield/m2, fruit values of vitamin C (VC), total sugars, total soluble solids (TSS), and carotenoids, along with the highest leaf of cytokines, P, K, Fe, and total carbohydrates values, were obtained using a soil addition of fulvic acid and spray with seaweed extract at 3 g/L in the two seasons of study. These treatments also provided the lowest abscisic acid, peroxidase, and super oxidase dismutase values in the same conditions. Sweet pepper plants supplemented with compost tea and seaweed extract foliar spray at 3 g/L were the most promising for inducing the highest values of fruit fresh and dry weights, fruit length and diameter, and the leavesrichest in N, Zn, and Mn; inversely, it induced the lowest catalase levels in both seasons. The applications of EM, yeast extract, and seaweed extract could be applied for high growth, mineral levels, enzymatic activity, fruit yield, and nutritional value of sweet pepper fruit and minimizing environmental pollution.

scholarly journals Silicon Foliar Application Mitigates Salt Stress in Sweet Pepper Plants by Enhancing Water Status, Photosynthesis, Antioxidant Enzyme Activity and Fruit Yield

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 733 ◽  
Author(s):  
Khaled A. A. Abdelaal ◽  
Yasser S.A. Mazrou ◽  
Yaser M. Hafez
Keyword(s):  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Chlorophyll A ◽  
Electrolyte Leakage ◽  
Foliar Application ◽  
Water Status ◽  
Sweet Pepper ◽  
Fruit Yield ◽  
Chlorophyll A And B ◽  
Pepper Plants

Silicon is one of the most significant elements in plants under abiotic stress, so we investigated the role of silicon in alleviation of the detrimental effects of salinity at two concentrations (1500 and 3000 ppm sodium chloride) in sweet pepper plants in two seasons (2018 and 2019). Our results indicated that relative water content, concentrations of chlorophyll a and b, nitrogen, phosphorus and potassium contents, number of fruits plant−1, fruit fresh weight plant−1 (g) and fruit yield (ton hectare−1) significantly decreased in salt-stressed sweet pepper plants as compared to control plants. In addition, electrolyte leakage, proline, lipid peroxidation, superoxide (O2−) and hydrogen peroxide (H2O2) levels, soluble sugars, sucrose, and starch content as well as sodium content significantly increased under salinity conditions. Conversely, foliar application of silicon led to improvements in concentrations of chlorophyll a and b and mineral nutrients, water status, and fruit yield of sweet pepper plants. Furthermore, lipid peroxidation, electrolyte leakage, levels of superoxide, and hydrogen peroxide were decreased with silicon treatments.

scholarly journals Chlorophyll Fluorescence Parameters and Antioxidant Defense System Can Display Salt Tolerance of Salt Acclimated Sweet Pepper Plants Treated with Chitosan and Plant Growth Promoting Rhizobacteria

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1180 ◽  
Author(s):  
Muneera D. F. ALKahtani ◽  
Kotb A. Attia ◽  
Yaser M. Hafez ◽  
Naeem Khan ◽  
Ahmed M. Eid ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Plant Growth ◽  
Plant Growth Promoting Rhizobacteria ◽  
Sweet Pepper ◽  
Fruit Yield ◽  
Chlorophyll Fluorescence Parameter ◽  
Fluorescence Parameter ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Pepper Plants

Salinity stress deleteriously affects the growth and yield of many plants. Plant growth promoting rhizobacteria (PGPR) and chitosan both play an important role in combating salinity stress and improving plant growth under adverse environmental conditions. The present study aimed to evaluate the impacts of PGPR and chitosan on the growth of sweet pepper plant grown under different salinity regimes. For this purpose, two pot experiments were conducted in 2019 and 2020 to evaluate the role of PGPR (Bacillus thuringiensis MH161336 106–8 CFU/cm3) applied as seed treatment and foliar application of chitosan (30 mg dm−3) on sweet pepper plants (cv. Yolo Wonder) under two salinity concentrations (34 and 68 mM). Our findings revealed that, the chlorophyll fluorescence parameter (Fv/Fm ratio), chlorophyll a and b concentrations, relative water content (RWC), and fruit yield characters were negatively affected and significantly reduced under salinity conditions. The higher concentration was more harmful. Nevertheless, electrolyte leakage, lipid peroxidation, hydrogen peroxide (H2O2), and superoxide (O2−) significantly increased in stressed plants. However, the application of B. thuringiensis and chitosan led to improved plant growth and resulted in a significant increase in RWC, chlorophyll content, chlorophyll fluorescence parameter (Fv/Fm ratio), and fruit yield. Conversely, lipid peroxidation, electrolyte leakage, O2−, and H2O2 were significantly reduced in stressed plants. Also, B. thuringiensis and chitosan application regulated the proline accumulation and enzyme activity, as well as increased the number of fruit plant−1, fruit fresh weight plant−1, and total fruit yield of sweet pepper grown under saline conditions.

scholarly journals Use of some biostimulants to improve the growth and chemical constituents of sweet pepper

10.5219/1131 ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 553-561
Author(s):  
Rabab Maraei ◽  
Noha Eliwa ◽  
Amina Aly
Keyword(s):  
Organic Acids ◽  
Fulvic Acid ◽  
Vegetative Growth ◽  
Foliar Application ◽  
Chemical Constituents ◽  
Chemical Properties ◽  
Sweet Pepper ◽  
Physical And Chemical ◽  
Better Than ◽  
And Chemical Properties

The experiment was conducted during two successive seasons 2016 and 2017 on sweet pepper plants to study the effect of foliar application of some natural extracts (fulvic acid at 2, 4 and 6% or algae at 1, 2 and 4 g.L-1) were applied three times along each season (after 2, 4 and 6 weeks of planting). The influence was evaluated through the response of vegetative growth, and some physical and chemical characteristics of sweet pepper fruits. The results obtained showed that the algae extract at 1 g.L-1 in most cases was better than the other spray treatments investigated to improve most fruit characteristics (length, diameter and yield of fruits), vegetative growth, and chemical properties followed by 6% fulvic acid. With regard to organic acids, malic and citric acids are the main organic acids found in sweet pepper. Malic, succinic and glutaric acids were higher in 1 g.L-1 algae extract treatment, but the concentration of citric acid was higher in 6% fulvic acid treatment. Therefore, algae extract and fulvic acid could be safely recommended as a natural biostimulants application for improving most desirable characteristics of sweet pepper grown under the same experimental condition.

scholarly journals EFFECT OF THE FOLIAR SPRAYING OF FULVIC ACID, FOLIC ACID, AND SEAWEED EXTRACT ON VEGETATIVE GROWTH, YIELD AND FRUIT QUALITY OF GRAPE CV. FLAME SEEDLESS

2021 ◽  
Vol 21 (no 1) ◽  
Author(s):  
Harhash M. M. ◽  
Abd EL- Megeed N.A ◽  
Abaidalah A. S. ◽  
Mosa W. F. A
Keyword(s):  
Folic Acid ◽  
Fulvic Acid ◽  
Irrigation System ◽  
Foliar Spray ◽  
Growth Yield ◽  
Soluble Solids ◽  
Seaweed Extract ◽  
Vitamin B9 ◽  
Seedless Grape ◽  
Length Width

This study was performed during 2019 and 2020 seasons on seven years old “Flame seedless” grape trees (Vitis vinefera L.). The trees were cultivated at 3 meters apart between rows and 2 meters between trees in the same row in a calcareous soil under drip irrigation system in a private orchard located at Nubaria, Beheira governorate, Egypt. The trees were sprayed three times, before flowering, during the full bloom and three weeks later with the following treatments: Control spray with water only, Fulvic acid at 1000, 1500 and 2000 ppm, Folic acid (vitamin B9) at 100, 150 and 200 ppm, Seaweed extract at 2000, 3000 and 4000 ppm. Besides, the combinations of 1000 ppm Fulvic acid +100 ppm Folic acid+ 2000 ppm Seaweed extract, 1500 ppm Fulvic acid + 150 ppm Folic acid + 3000 ppm Seaweed extract and 2000 ppm Fulvic acid + 200 ppm Folic acid + 4000 ppm Seaweed extract were also applied. The obtained results demonstrated that the foliar spray of Folic acid, Fulvic acid and Seaweed extract and their combinations improved weight, length, width, size and number of clusters. Furthermore, they also increased extremely weight of 100 berries and consequently the yield per vine in kg and the yield in ton per hectare, weight of juice, the percentages of total sugars, and total soluble solids as compared to control in the two seasons. The effect of Fulvic acid on the previous mentioned parameters was higher than the effect of Seaweed extractor Folic acid and its effect was better by the increasing the applied concentration where the best one was 2000 ppm, which gave the best results more than the other applied treatments in the two seasons. The best combination was Fulvic acid 2000 ppm + Folic acid at 200 ppm + Seaweed extract 4000 ppm.

scholarly journals Early and Total Yield Enhancement of the Globe Artichoke Using an Ecofriendly Seaweed Extract-Based Biostimulant and PK Fertilizer

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1819
Author(s):  
Gehan A. Elsharkawy ◽  
H. A. H. Ibrahim ◽  
Alaa H. Salah ◽  
Mohammad Akrami ◽  
Hayssam M. Ali ◽  
...  
Keyword(s):  
Field Experiments ◽  
Chemical Constituents ◽  
Total Yield ◽  
Foliar Spray ◽  
Dry Weight ◽  
Seaweed Extract ◽  
Yield Enhancement ◽  
Globe Artichoke ◽  
Weight Yield ◽  
Phosphorus And Potassium

This study evaluated the effect of phosphorus and potassium (PK) fertilizer levels and foliar seaweed extract on early and total yield productivity and the growth of globe artichoke plants. Field experiments were conducted over two seasons on loamy–clay soil at the vegetable research farm, of the Faculty of Agriculture, Alexandria University, Egypt. Fertilizer levels of 0, 25, 50 and 75 mL L−1, and seaweed extract concentrations of 0, 5 and 10 mg L−1, individually and in combination, were used. Globe artichoke plants treated with PK liquid fertilizer, with and without seaweed extract, showed critical increases in growth (plant height and number of leaves per plant as well as foliage dry weight), yield, and some chemical constituents compared to untreated plants. The PK3 fertilizer level and 10 mL L−1 seaweed extract as a foliar spray showed greater effects than other combinations.

scholarly journals Compost tea spraying increases yield performance of pepper (Capsicum annuum L.) grown in greenhouse under organic farming system

2018 ◽  
pp. 229-234 ◽  
Author(s):  
Massimo Zaccardelli ◽  
Catello Pane ◽  
Domenica Villecco ◽  
Assunta Maria Palese ◽  
Giuseppe Celano
Keyword(s):  
Organic Farming ◽  
Organic Liquid ◽  
Liquid Product ◽  
Foliar Spray ◽  
Farming System ◽  
Total Production ◽  
Vegetable Crops ◽  
Compost Tea ◽  
Organic Farming System ◽  
Pepper Plants

Compost tea (CT) is an organic liquid product derived from quality compost carrying useful microorganism and molecules capable to protect and stimulate growth of the plants. It is gaining a lot of interest for improving productivity of conventional and/or organic vegetable crops. In this research, the effects of an aerated water-extracted CT obtained from vegetable composts, applied as foliar spray on pepper plants, was evaluated for two years. In the first year, total production increased by 21.9% whereas, in the second year, it increased by 16.3%. The increment of the yields was related to an increase of the number of fruits per plant, whereas the weight of the single fruit was not affected by treatment. In both years, physiological and nutritional status of pepper plants were increased, as resulted by leaf-SPAD assessed during crop cycle. Findings indicate the effectiveness of CT application in improving significantly yield performances of vegetable crops under greenhouse organic farming system.

scholarly journals Effect of Exogenous α-Tocopherol on Sweet Pepper Plants Irrigated by Diluted Sea Water

2017 ◽  
Vol 5 (4) ◽  
pp. 23
Author(s):  
Sahar S. Taha, Abdel Wahab M. Mahmoud, Mostafa M. Rad
Keyword(s):  
Sea Water ◽  
Foliar Application ◽  
Salt Water ◽  
Tap Water ◽  
Block Design ◽  
Foliar Spray ◽  
Sweet Pepper ◽  
Growth And Yield ◽  
Pepper Plant ◽  
Pepper Plants

Capsicum annum is one of the most cultivated summer crops in Egypt which is consider the most susceptible crop to harsh a biotic stresses as Salinity condition. Pots experiment was carried out at Faculty of Agriculture, Fayoum University, Egypt during two successive summer seasons of 2014 and 2015 to study the responsive of Sweet pepper (cv. California wonder) plants irrigated by diluted sea water (EC= 8.0 dSm-1) to foliar applications of 1 mM alpha-Tocopherol (α TOC). Four treatments were arranged in a randomized block design:1) plants irrigated by sea water (SW) and sprayed by tap water (TW), 2) TW for irrigation and α TOC for foliar spray, 3) SW for irrigation and α TOC for foliar spray and 4) the control (TW for irrigation and foliar spray). Pepper plants irrigated by sea water recognized significant reductions in growth parameters (leave number, leaf area, plant dry weight, Fruit number and Fruit yield). Results also showed that, foliar application of pepper plant with αTOC caused a notable upgrading in growth and yield under saline conditions. The maximum increased growth was obtained when plants irrigated by TW and sprayed by 1 mM αTOC. The foliar application of αTOC considerably boosted the activities of Superoxide dismutase (SOD), Catalase (CAT), Ascorbate peroxidase (APX) and Glutathione reductase (GR) of pepper plants contrasted to control treatment. The outcome of present experiment could be recommended for both new reclaimed lands suffering from salt water and regions exposure to salinity hazard in irrigated water.

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