scholarly journals Foliar Application of Vegetal-Derived Bioactive Compounds Stimulates the Growth of Beneficial Bacteria and Enhances Microbiome Biodiversity in Lettuce

2019 ◽  
Vol 10 ◽  
Author(s):  
Francesca Luziatelli ◽  
Anna Grazia Ficca ◽  
Giuseppe Colla ◽  
Eva Baldassarre Švecová ◽  
Maurizio Ruzzi
Keyword(s):  
Bioactive Compounds ◽  
Foliar Application ◽  
Beneficial Bacteria

scholarly journals Impact of Agronomic Biofortification with Zinc on the Nutrient Content, Bioactive Compounds, and Antioxidant Capacity of Cowpea Bean (Vigna unguiculata L. Walpers)

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1460
Author(s):  
David López-Morales ◽  
Efraín de la Cruz-Lázaro ◽  
Esteban Sánchez-Chávez ◽  
Pablo Preciado-Rangel ◽  
César Márquez-Quiroz ◽  
...  
Keyword(s):  
Rural Communities ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Vigna Unguiculata ◽  
Zinc Sulphate ◽  
Foliar Application ◽  
Public Health Problem ◽  
Zinc Content ◽  
Nutrient Content ◽  
Total Phenols

Zinc intake deficiency is a public health problem and increasing the nutrient’s content in the edible parts of plants can help mitigate it. The objective of this work was to determine the effect of the edaphic and foliar application of zinc sulphate on the nutrient content, bioactive compounds, and antioxidant capacity of cowpea beans (Vigna unguiculata L. Walpers). A sample of 100 grains was taken, and the length, width, thickness, weight, ash content, fat, humidity, fibers, carbohydrates, protein, energy, macro- and micro- nutrients, total phenols, flavonoids, anthocyanins, and antioxidant capacity were determined. The 0.250 g edaphic-12.5 mM foliar dose produced grains of a greater weight and size. All of the edaphic and foliar doses increased the grain zinc content, and the highest value was found with the 0.125 g edaphic-50.0 mM foliar dose. The total phenols increased with 12.5 g of edaphic zinc, while phenols, flavonoids, and the antioxidant capacity increased with 50.0 mM foliar zinc. The edaphic and foliar application of zinc sulphate increased the grain weight and size, zinc content, total phenols, and antioxidant capacity. Therefore, edaphic and foliar zinc biofortification enriches this nutrient in cowpea grains, and could reduce micronutrient malnutrition in the urban and rural communities of Mexico.

scholarly journals Plant- and Seaweed-Based Extracts Increase Yield but Differentially Modulate Nutritional Quality of Greenhouse Spinach through Biostimulant Action

Agronomy ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 126 ◽  
Author(s):  
Youssef Rouphael ◽  
Maria Giordano ◽  
Mariateresa Cardarelli ◽  
Eugenio Cozzolino ◽  
Mauro Mori ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Nutritional Quality ◽  
Foliar Application ◽  
Protein Hydrolysate ◽  
Chlorophyll Biosynthesis ◽  
Crop Productivity ◽  
Growth Cycle ◽  
High Yield ◽  
Nitrate Accumulation

Plant biostimulants (PBs) such as protein hydrolysates and seaweed extracts are attracting the increasing interest of scientists and vegetable growers for their potential toenhance yield and nutritional quality. The current study assessed crop productivity, leaf colorimetry, mineral profile and bioactive compounds of greenhouse spinach in response to the foliar application of three PBs: legume-derived protein hydrolysate [PH], extract of seaweed Ecklonia maxima or mixture of vegetal oils, herbal and seaweed Ascophyllum nodosum extracts. Plants were PB-treated at a rate of 3 mL L−1 four times during their growth cycle at weekly intervals. Foliar PB applications enhanced fresh yield, dry biomass and leaf area of spinach in comparison with untreated plants. Improved yield performance with PB applications was associated with improved chlorophyll biosynthesis (higher SPAD index). The three PB treatments elicited an increase in bioactive compounds (total phenols and ascorbic acid), thus raised the functional quality of spinach. The application of PH enhanced K and Mg concentrations and did not result in increased nitrate accumulation as observed with the other two PB treatments. Our findings can assist vegetable farmers and the agro-food industry in adopting innovative and sustainable tools such as PB for complementing a high yield with premium quality.

scholarly journals How foliar application of vine-shoot extract onto grapevine could affect white must composition?

2020 ◽  
Author(s):  
Rosario Sánchez-Gómez ◽  
Eva. P. Pérez-Álvarez ◽  
M. Rosario Salinas ◽  
Ana Gonzalo-Diago ◽  
Amaya Zalacain ◽  
...  
Keyword(s):  
Sustainable Agriculture ◽  
Bioactive Compounds ◽  
Foliar Application ◽  
Sugar Content ◽  
Environmentally Friendly ◽  
Aqueous Extracts ◽  
Wine Quality ◽  
Agronomic Practices ◽  
Grapevine Variety ◽  
Grape Yield

Nowadays, agronomic practices are evolving towards a “Sustainable Agriculture” using environmentally friendly systems. Modern viticulture aims to reduce inputs without reducing grape yield and wine quality. As a result of pruning, vine-shoots are generated as the waste of the vineyard. However their aqueous extracts have shown to have significant contents of bioactive compounds and, therefore, biostimulant activity. The foliar applications of vine-shoot extracts onto white grapevine variety caused a reduction in the sugar content, further an effect on the grape reaction product (trans-GRP) content was observed.

scholarly journals Foliar Application of Copper Nanoparticles Increases the Fruit Quality and the Content of Bioactive Compounds in Tomatoes

2018 ◽  
Vol 8 (7) ◽  
pp. 1020 ◽  
Author(s):  
Elsy López-Vargas ◽  
Hortensia Ortega-Ortíz ◽  
Gregorio Cadenas-Pliego ◽  
Karim de Alba Romenus ◽  
Marcelino Cabrera de la Fuente ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Copper Nanoparticles ◽  
Fruit Quality ◽  
Foliar Application

Using gypsum and selenium foliar application for mineral biofortification and improving the bioactive compounds of garlic ecotypes

2020 ◽  
Vol 154 ◽  
pp. 112742
Author(s):  
Maryam Sohrabi ◽  
Mahboobeh Zare Mehrjerdi ◽  
Soheil Karimi ◽  
Vahid Tavallali
Keyword(s):  
Bioactive Compounds ◽  
Foliar Application

scholarly journals Pre-Harvest Application of Salicylic Acid, Abscisic Acid, and Methyl Jasmonate Conserve Bioactive Compounds of Strawberry Fruits during Refrigerated Storage

Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 568
Author(s):  
Omaima S. Darwish ◽  
Marwa R. Ali ◽  
Ebtihal Khojah ◽  
Bassem N. Samra ◽  
Khaled M. A. Ramadan ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Abscisic Acid ◽  
Methyl Jasmonate ◽  
Bioactive Compounds ◽  
Foliar Application ◽  
Storage Period ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Refrigerated Storage ◽  
Strawberry Fruit

The short shelf-life and loss of bioactive compounds of strawberry fruit are the most important problems during strawberry refrigerated storage. This study was carried out to evaluate the effect of the pre-harvest foliar application of salicylic acid (SA) (2 and 4 mM), abscisic acid (ABA) (0.25 and 0.50 mM), and methyl jasmonate (MeJA) (0.25 and 0.50 mM) three times, 10 d apart, at fruit development and ripening stages on storage ability and bioactive compounds of strawberry fruit (cv. Festival) stored at 4 °C for 12 d. Our results showed that fruit obtained from both concentrations of ABA and 0.25 mM MeJA was firmer and had higher total soluble solids (TSS) than fruit from non-treated plants. However, all previous applications had no significant effect on weight loss, pH, or color. Applications of 4 mM SA and 0.25 mM MeJA conserved fruit from ascorbic acid (AsA) loss compared to control at the end of the storage period. In addition, all pre-harvest applications remained higher in total phenolic compounds (TPC) and anthocyanin contents compared to controls at the last storage period. Hence, the pre-harvest application of SA, ABA, and MeJA could be used to conserve TPC and anthocyanin as well as the quality of strawberry fruits during refrigerated storage.

scholarly journals Changes in essential oil content of Lippia citriodora in response to induction of bio-active compounds and plant growth regulators

2017 ◽  
Vol 7 (4) ◽  
pp. 619-626 ◽  
Author(s):  
Mahsa Roodbaraky ◽  
Ali Mehrafarin ◽  
Farahnaz Khalighi-Sigaroodi ◽  
Hassanali Naghdi Badi
Keyword(s):  
Essential Oil ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Bioactive Compounds ◽  
Growth Regulators ◽  
Oil Content ◽  
Foliar Application ◽  
Block Design ◽  
Distilled Water ◽  
Lippia Citriodora

<p>Background &amp; aim: Bioactive compounds and plant growth regulators could change a plant’s essential oil content and composition. In this study, the effect of bioactive compounds and plant growth regulators on lippia citriodora was investigated.<br />Objective: This experiment was done with three replications on the basis of factorial experiment in randomized complete block design. The bio-regulators were sprayed in four levels, i.e. distilled water, 50 ppm gibberellic acid (GA3) + 50 ppm indole-3-butyric acid (IBA), 50 ppm GA3 + 100 ppm IBA, and 100 ppm GA3 + 50 ppm IBA. The chitosan was sprayed in two levels: distilled water and 400 ppm chitosan. The methanol was sprayed in two levels: distilled water and 5% v/v methanol. The essential oil was extracted by hydrodistillation method and analyzed by GC and GC/MS.<br />Results: Thirty-two compounds were identified, representing 95.08% of the total essential oil. The main components were E-citral (geranial) (25.02%), Z-citral (neral) (16.04%), ar-curcumene (10.37%), caryophyllene oxide (9.56%), spathulenol (6.83%), limonene (4.99%) and (E)-caryophyllene (2.29%). The studied traits were significantly affected (p &lt; 0.01) by the interaction of bioregulators, methanol and chitosan application.<br />Conclusion: Foliar application of IBA, GA3, chitosan and methanol could increase aromatic values of L. citriodora essential oil.</p>

scholarly journals Foliar Application of Cu Nanoparticles Modified the Content of Bioactive Compounds in Moringa oleifera Lam

Agronomy ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 167 ◽  
Author(s):  
Antonio Juárez-Maldonado ◽  
Hortensia Ortega-Ortíz ◽  
Gregorio Cadenas-Pliego ◽  
Jesús Valdés-Reyna ◽  
José Pinedo-Espinoza ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Nutritional Value ◽  
Moringa Oleifera ◽  
Foliar Application ◽  
Bioactive Compound ◽  
Cu Nanoparticles ◽  
Chlorophyll Contents ◽  
Moringa Oleifera Lam

Moringa oleifera Lam is a plant that has recently gained importance as a food because of its nutritional value and bioactive compound content and because practically all the organs are usable. The use of nanoparticles has appeared as an alternative to increase bioactive compounds in plants. The goal of this work was to determine if the application of copper nanoparticles would increase the content of bioactive compounds and antioxidant capacity in M. oleifera. Copper (Cu) nanoparticles were applied to the leaves at four different times throughout crop growth. The biocompounds were analyzed after the second, third, and fourth applications. The results show that application of Cu nanoparticles has a beneficial effect on the accumulation of bioactive compounds in M. oleifera leaves. In addition, the antioxidant capacity and carotenoid and chlorophyll contents in the leaves of M. oleifera increased after Cu nanoparticles application. The same effect was not observed in the fruit of M. oleifera. Here, the bioactive compound contents diminished. Therefore, the use of Cu nanoparticles can be an important alternative to improve the quality of this plant, particularly that of the leaves.

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