Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

Agronomy, Journal Year: 2019, Volume and Issue: 9(6), P. 306 - 306

Published: June 12, 2019

Abiotic stresses strongly affect plant growth, development, and quality of production; final crop yield can be really compromised if stress occurs in plants’ most sensitive phenological phases. Additionally, the increase tolerance through genetic improvements requires long breeding programmes different cultivation environments for performance validation. Biostimulants have been proposed as agronomic tools to counteract abiotic stress. Indeed, these products containing bioactive molecules a beneficial effect on plants improve their capability face adverse environmental conditions, acting primary or secondary metabolism. Many companies are investing new biostimulant development identification effective contained kinds extracts, able elicit specific responses against stresses. Most compounds unknown characterization term composition is almost impossible; therefore, they could classified basis role plants. generally applied high-value crops like fruits vegetables; thus, this review, we examine summarise literature use vegetable crops, focusing application common

Language: Английский

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Synergistic Biostimulatory Action: Designing the Next Generation of Plant Biostimulants for Sustainable Agriculture

Frontiers in Plant Science, Journal Year: 2018, Volume and Issue: 9

Published: Nov. 13, 2018

Over the past 10 years, interest in plant biostimulants (PBs) has been on rise compelled by growing of scientists, extension specialists, private industry, and growers integrating these products array environmentally friendly tools that secure improved crop performance yield stability. Based new EU regulation PBs are defined through claimed agronomic effects, such as improvement nutrient use efficiency, tolerance to abiotic stressors quality. This definition entails diverse organic inorganic substances and/or microorganisms humic acids, protein hydrolysates, seaweed extracts, mycorrhizal fungi, N-fixing bacteria. The current mini-review provides an overview direct (stimulatory C N metabolism) indirect (enhancing uptake modulating root morphology) mechanisms which microbial non-microbial improve performance, physiological status, resilience environmental stimulate microbiomes. scientific advances underlying synergistic additive effects compiled discussed for first time. review identifies several perspectives future research between community industry design develop a second generation (biostimulant 2.0) with specific biostimulatory action render agriculture more sustainable resilient.

Language: Английский

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Trichoderma-Based Biostimulants Modulate Rhizosphere Microbial Populations and Improve N Uptake Efficiency, Yield, and Nutritional Quality of Leafy Vegetables

Frontiers in Plant Science, Journal Year: 2018, Volume and Issue: 9

Published: June 5, 2018

Microbial inoculants such as Trichoderma-based products are receiving great interest among researchers and agricultural producers for their potential to improve crop productivity, nutritional quality well resistance plant pathogens/pests numerous environmental stresses. Two greenhouse experiments were conducted assess the effects of biostimulants under suboptimal, optimal supraoptimal levels nitrogen (N) fertilization in two leafy vegetables: Iceberg lettuce (Lactuca sativa L.) rocket (Eruca Mill.). The yield, characteristics, N uptake mineral composition analyzed each vegetable after inoculation with Trichoderma strains T. virens (GV41) or harzianum (T22), results compared non-inoculated plants. In addition, effect on microbes associated rhizosphere terms prokaryotic eurkaryotic concentration using DGGE was also evaluated. biostimulants, particular GV41, positively increased yield unfertilized plots. highest marketable fresh recorded either biostimulant inoculations when plants supplied N. a lesser degree T22, elicited an increase total ascorbic acid both high conditions. GV41 N-use efficiency lettuce, favoured native present soil rocket. positive nutrient growth species-dependent, being more marked lettuce. best biostimulation from treatments observed crops grown low availability. strongly influenced eukaryotic populations rhizosphere, particularly exerting different comparison fertilized Overall, may be considered viable strategy manage content horticulture cultivated fertility soils, assist growers reducing use synthetic fertilizers, developing sustainable management practices optimize efficiency.

Language: Английский

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Nitrate in fruits and vegetables

Scientia Horticulturae, Journal Year: 2018, Volume and Issue: 237, P. 221 - 238

Published: April 24, 2018

Language: Английский

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Can biostimulants be used to mitigate the effect of anthropogenic climate change on agriculture? It is time to respond

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 751, P. 141763 - 141763

Published: Aug. 21, 2020

Language: Английский

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Developing Biostimulants From Agro-Food and Industrial By-Products

Frontiers in Plant Science, Journal Year: 2018, Volume and Issue: 9

Published: Oct. 30, 2018

In modern agriculture, seeking eco-friendly ways to promote plant growth and enhance crop productivity is of priority. Biostimulants are a group substances from natural origin that contribute boosting yield nutrient uptake, while reducing the dependency on chemical fertilizers. Developing biostimulants by-products paves path waste recycling reduction, generating benefits for growers, food industry, registration distribution companies, as well consumers. The criteria select designated valorizing biostimulant are: absence pesticide residue, low cost collection storage, sufficient supply synergy with other valorization paths. Over years, projects national international levels such NOSHAN, SUNNIVA, Bio2Bio have been initiated (i) explore agriculture industries; (ii) investigate mode action organic streams. Several classes waste-derived or raw material components were shown be effective in horticulture, including vermicompost, composted urban waste, sewage sludge, protein hydrolysate, chitin/chitosan derivatives. As global market continues rise, it expected more research development will expand list by-products. Global imbalance also requires developed targeted market. Here, we review examples derived agricultural discuss why biomass particularly valuable source new agrochemical products.

Language: Английский

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

Agronomy, Journal Year: 2018, Volume and Issue: 8(7), P. 126 - 126

Published: July 21, 2018

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

Language: Английский

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Algae biostimulants: A critical look at microalgal biostimulants for sustainable agricultural practices

Biotechnology Advances, Journal Year: 2021, Volume and Issue: 49, P. 107754 - 107754

Published: April 21, 2021

Language: Английский

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Formulation of Microbial Inoculants by Encapsulation in Natural Polysaccharides: Focus on Beneficial Properties of Carrier Additives and Derivatives

Frontiers in Plant Science, Journal Year: 2020, Volume and Issue: 11

Published: March 10, 2020

In the last 10-15 years, wide application of bioformulated plant beneficial microorganisms is accepted as an effective alternative chemical agro-products. Two main problems can be distinguished in their production and application: (a) economical competiveness based on overall up-stream down-stream operational costs, (b) development commercial products with a high soil-plant colonization potential controlled conditions but not able to effectively mobilize soil nutrients and/or combat pathogens field. To solve above problems, microbe-based formulations produced by immobilization methods are gaining attention they demonstrate large number advantages compared other solid liquid formulations. This mini-review summarizes knowledge additional compounds that form part bioformulations. The additives exert economical, price-decreasing effects bulking agents or direct improving microbial survival during storage after introduction into simultaneous plants. some studies, combinations used complex impact, which improves characteristics final products. Special paid polysaccharide carriers derivates, play stimulatory role plants less studied. also focuses difficulty evaluating bio-formulations.

Language: Английский

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Hormesis in plants: Physiological and biochemical responses

Ecotoxicology and Environmental Safety, Journal Year: 2020, Volume and Issue: 207, P. 111225 - 111225

Published: Sept. 8, 2020

Hormesis is a favorable response to low level exposures substance or adverse conditions. This phenomenon has become target achieve greater crop productivity. review aimed address the physiological mechanisms for induction of hormesis in plants. Some herbicides present hormetic dose response. Among them, those with active ingredients glyphosate, 2,4-D and paraquat. The application glyphosate as promoter therefore showing promess . Glyphosate prominent role shikimic acid pathway, decreasing lignin synthesis resulting improved growth productivity several crops. Further studies are still needed estimate optimal doses other crops agricultural interest. Biostimulants also important, since they promote effects on secondary metabolic pathways production reactive oxygen species (ROS). When ROS produced, hydrogen peroxide act signaling molecule that cell walls malleability allowing inward water transport causing expansion. Plants'ability overcome abiotic stress conditions desirable avoid losses economic losses. compiles information how plants can be used new levels.

Language: Английский

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