Giuseppe Colla

Giuseppe Colla
Tuscia University | Tuscia · Agricutural and Forestry Sciences (DAFNE)

PhD

About

398
Publications
231,862
Reads
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14,969
Citations
Additional affiliations
July 2017 - present
Tuscia University
Position
  • Professor
July 2016 - June 2017
Purdue University
Position
  • Visiting scholar
December 2014 - June 2017
Tuscia University
Position
  • Professor (Associate)
Education
November 1997 - May 2000
Tuscia University
Field of study
  • Horticulture
October 1991 - June 1996
Tuscia University
Field of study
  • Agricultural Science

Publications

Publications (398)
Article
Full-text available
Protein hydrolysates (PHs) are a prominent category of plant biostimulants, mainly constituted of amino acids, oligopeptides and polypeptides, obtained by partial hydrolysis of animal or plant protein sources. Despite scientific evidence supporting the biostimulant action of PHs on vegetables, the morphological, physiological, and shelf-life perfor...
Article
Full-text available
A promising strategy for sustainably increasing the quality and yield of horticultural products is the use of natural plant biostimulants. In this work, through a greenhouse experiment, we evaluated the effect of a legume-derived biostimulant at three dose treatments (0.0 control, 2.5 mL L􀀀1, and 5.0 mL L􀀀1) on the yield performance, nutrients trai...
Article
The use of plant biostimulants such as seaweed extracts (SWE) and protein hydrolysates (PH) has grown in the recent years due to their beneficial effects on yield under both optimal and sub-optimal conditions such as salt stress. The comprehension of the mode of action of these two important categories of biostimulants on plant performance will all...
Article
Full-text available
Salinity stress is a major constraint to sustainable crop production due to its adverse impact on crop growth, physiology, and productivity. As potato is the fourth most important staple food crop, enhancing its productivity is necessary to ensure food security for the ever-increasing population. Identification and cultivation of salt-tolerant pota...
Article
Full-text available
Calcium deficiency or its inefficient translocation to pepper fruits leads to considerable economic loss by reducing the number of marketable fruits. The present study proposes grafting as an environmentally friendly technique to effectively reduce such loss. A commercial variety (Al-cudia F1; V) was grafted onto two pepper (Capsicum annum L.) acce...
Article
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The cultivation of nutritionally and economically important crops like tomato are often threatened by dry spells due to drought as these crops largely depend on an assured water supply. The magnitude and intensity of drought is predicted to intensify under climate change scenarios, particularly in semi-arid regions, where water is already a scarce...
Article
Full-text available
The cultivation of nutritionally and economically important crops like tomato are often threatened by dry spells due to drought as these crops largely depend on an assured water supply. The magnitude and intensity of drought is predicted to intensify under climate change scenarios, particularly in semi-arid regions, where water is already a scarce...
Article
Full-text available
The use of biostimulants in modern agriculture has rapidly expanded in recent years, owing to their beneficial effects on crop yield and product quality, which have come under the scope of intensive research. Accordingly, in the present study we appraised the efficacy of two plant-derived biostimulants, the legume-derived protein hydrolysates Train...
Article
Full-text available
The floating raft constitutes a valuable system for growing herbs as it effectuates high yield and prime functional quality. However, the pressing need for advancing sustainability in food production dictates the reduction of chemical fertilizer inputs in such intensive production schemes through innovative cultivation practices. In this perspectiv...
Article
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lungo tutta la filiera produttiva questi ritrovati possono essere applicati al seme, nella fase vivaistica e durante la coltivazione in pieno campo.
Article
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Plant-derived protein hydrolysates (PHs) are gaining global interest for their sustainability and positive effects on crops under abiotic stresses. However, the long-term effects of PHs on the yield and quality of greenhouse crops have not been described. Romaine lettuce (Lactuca sativa L.) and Micro-Tom tomato (Solanum lycopersicum L.) were grown...
Article
Full-text available
Il ciliegio è una delle colture più soggette al fenomeno del cracking. Considerata l’elevata rilevanza economica della coltura, l’importante danno economico che lo spacco può apportare e la necessità di rendere le produzioni sempre più sostenibili, negli anni sono state studiate diverse strategie per contenere questo problema. Tra queste, anche l’u...
Article
Full-text available
Biostimulants represent an important category of agricultural inputs characterized by multiple functions. They are used to assist crop growth, yield and to enhance the final quality of produces. Their classification is generally based on claims (i.e., which services they provide to the crop), even though their biological effects are often species-d...
Article
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Plant phenomics is becoming a common tool employed to characterize the mode of action of biostimulants. A combination of this technique with other omics such as metabolomics can offer a deeper understanding of a biostimulant effect in planta. However, the most challenging part then is the data analysis and the interpretation of the omics datasets....
Article
Full-text available
Seed quality is an important aspect of the modern cultivation strategies since uniform germination and high seedling vigor contribute to successful establishment and crop performance. To enhance germination, beneficial microbes belonging to arbuscular mycorrhizal fungi, Trichoderma spp., rhizobia and other bacteria can be applied to seeds before so...
Article
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Nowadays, interest in novel functional foods has been on the rise, compelled by the increased interest of the consumers, researchers, food nutritionists, producers, and extension specialists for diets able to maintain health and preventing chronic diseases by providing essential nutrients, phytochemicals, and calories for the body metabolism [...]
Article
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This study aimed to assess the morphological and physio-biochemical responses of a commercial watermelon (Citrullus lanatus (Thunb.) Matsum. and Nakai) cv. ‘Crimson Sweet’ grafted onto a drought-tolerant rootstock of wild watermelon (bitter apple, Citrullus colocynthis (L.) Schrad, ‘Esfahan’) in comparison with an ungrafted ‘Crimson Sweet’ watermel...
Article
Plant biostimulant mineral composition nursery Solanaceae seedlings quality SPAD index A B S T R A C T The urgent need to increase sustainable crop production has pushed the agricultural sector towards methods based on natural products such as biostimulants. The nursery industry holds strategic importance for modern horticulture because only "high...
Article
Full-text available
Protein hydrolysates (PHs) are employed in agriculture to increase the sustainability of farming systems, with positive results on crop productivity and response against environmental stressors. Nevertheless, the molecular mechanism(s) triggered by their specific activity is not clearly understood. In this work, five PHs obtained by enzymatic hydro...
Article
Full-text available
Salinity in water and soil is one of the major environmental factors limiting the productivity of agronomic and horticultural crops. In basil (Ocimum basilicum L., Lamiaceae) and other Ocimum species, information on the plant response to mild salinity levels, often induced by the irrigation or fertigation systems, is scarce. In the present work, we...
Article
Full-text available
Plant biostimulants are “green” solutions to improve crop production. Trichoderma spp. and phosphites, ordinarily used as biocontrol agents, can trigger phytostimulation, also promoting endogenous mechanisms involved in plant growth and development. The present study aimed at assessing the efficacy of a phosphite-based formulation (Phosphit-One) an...
Article
Full-text available
Lettuce (Lactuca sativa L.) is a leafy vegetable cultivated widely for its fast and year-round production and its beneficial phytochemical content, which may be boosted further by plant biostimulants that are considered eco-sustainable means for enhancing horticultural crop production. A greenhouse experiment was carried out to evaluate the yield...
Article
Full-text available
The use of plant biostimulants contributes to more sustainable and environmentally friendly farming techniques and offers a sustainable alternative to mitigate the adverse effects of stress. Protein hydrolysate-based biostimulants have been described to promote plant growth and reduce the negative effect of abiotic stresses in different crops. Howe...
Article
Full-text available
Natural biostimulants are one of the most promising and eco-sustainable technologies, which can improve the qualitative and productive attributes of horticultural crops. The positive effects of their application derive from their “signaling role” as elicitors of auxin- and gibberellin-like activity, thus constituting a valid alternative to syntheti...
Article
Full-text available
The effect of plant biostimulation on fruits of traditional tomato germplasm is largely unknown. We examined how a tropical plant-derived biostimulant impacts the nutritional, functional, and compositional characteristics of tomato fruits from four landraces, collected in the San Marzano (SM) tomato Protected Designation of Origin (PDO) region, by...
Article
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Currently, vegetable production systems have been changed to improve yield and quality, leading to an improvement in sustainability. In horticultural cultivation, one of the most important sectors is the seedling production in nurseries. In the past, horticultural seedlings were produced directly by farmers. Nowadays, industrialized nurseries provi...
Article
Full-text available
Sweet cherry is a high value crop and the economic success of its cultivation depends not only on yield but also on fruit visual and nutritional quality attributes that influence consumer acceptability, as well as on fruit post-harvest performance and resistance to cracking. During the last few decades, cherry growers have tried to achieve these go...
Article
Full-text available
Despite scientific evidence supporting the biostimulant activity of protein hydrolysates (PHs) derived from vegetal or animal sources, the morpho-physiological and biochemical mechanisms underlying the biostimulant action of PHs from plant biomass or animal by-products are still poorly explored. Accordingly, we performed a greenhouse experiment for...
Article
Full-text available
Despite the scientific evidence supporting their biostimulant activity, the molecular mechanism(s) underlying the activity of protein hydrolysates (PHs) and the specificity among different products are still poorly explored. This work tested five different protein hydrolysates, produced from different plant sources using the same enzymatic approach...
Article
Full-text available
Mineral elements are essential for plant growth and development and strongly affect crop yield and quality. To cope with an everchanging environment, plants have developed specific responses to combined nutrient variations. In this work, we investigated the effects of multifactorial treatments with three macrocations (K, Ca, and Mg) on lettuce (Lac...
Article
Nel nuovo Regolamento euro-peo sui fertilizzanti approva-to il 27 marzo 2019 dal Parla-mento europeo i «biostimo-lanti delle piante» sono definiti come qualunque prodotto che stimola i pro-cessi nutrizionali delle piante indipen-dentemente dal suo tenore di nutrienti, con l'unica finalità di migliorare una o più delle seguenti caratteristiche del-l...
Article
Full-text available
Basil (Ocimum basilicum L.) is among the most widespread aromatic plants due to its versatility of use and its beneficial health properties. This aromatic plant thrives in hydroponics, which is a valid tool to improve the production and functional quality of crops, but nevertheless, it offers the possibility to de-seasonalize production. A floating...
Article
Full-text available
Grafting is among the most ancient agricultural techniques, having been practiced since 2000 BC. Nowadays, this old technique holds a significant margin for improvement by adding contemporary advances in plant science and technology. Vegetable grafting is widely used in Cucurbitaceous (cucumber, melon and watermelon) and Solanaceous crops (eggplant...
Article
Full-text available
Biostimulants play an important role in the development of management practices able to reach adequate productivity to meet the food demand of a growing world population, while following a sustainable agriculture model. This work aims to evaluate the effect of a protein hydrolysate derived from legume seeds by enzymatic hydrolysis on plant growth a...
Article
Full-text available
Plant biostimulants are substances (i.e., humic and fulvic acids, protein hydrolysates and seaweed extracts) and microbial inoculants (i.e., mycorrhizal fungi and plant growth promoting rhizobacteria-PGPR) that have been introduced as an efficient, safe and sustainable tool to optimize root system thus boosting crop performance, and nutrient use ef...
Article
Reducing the energy demand and dependency on fossil fuels is crucial for improving the sustainability of greenhouses, which are the most energy intensive systems in the agricultural sector. Renewable technologies represent a key option to meet the greenhouse energy demands. Agrivoltaics has recently emerged as a strategy to combine farming activity...
Article
Full-text available
Microbial-based biostimulants can improve crop productivity by modulating cell metabolic pathways including hormonal balance. However, little is known about the microbial-mediated molecular changes causing yield increase. The present study elucidates the metabolomic modulation occurring in pepper (Capsicum annuum L.) leaves at the vegetative and re...
Article
Full-text available
Modern agriculture increasingly demands an alternative to synthetic chemicals (fertilizers and pesticides) in order to respond to the changes in international law and regulations, but also consumers' needs for food without potentially toxic residues. Microbial (arbuscular mycorrhizal and plant growth promoting rhizobacteria: Azotobacter, Azospirill...
Article
Full-text available
Plant biostimulants, including microbial and non-microbial based products, have been successfully used to improve agriculture productivity due to their ability to stimulate nutrient uptake, plant growth and to improve tolerance to abiotic stresses. An open field experiment was carried out on processing tomato (Solanum lycopersicum L.) with the aim...
Article
Full-text available
Biostimulant manufacturers have developed innovative products targeting specific agronomic needs, hence attracting the attention of the scientific community, extension specialists, and industry stakeholders including policymakers and crop producers. Microalgae acquire a broad economic value in the production of nutrient dense food and supplementary...
Article
Full-text available
The globe artichoke (Cynara cardunculus L. subsp. Scolymus (L.) Hegi) is a multi-year species rich in various classes of phytochemicals with known nutritional and pharmacological properties, such as polyphenols, sesquiterpene lactones, and terpenoids. Over the last decade, hybrids cultivars are transforming the artichoke market for their higher uni...
Article
Full-text available
Herbaceous grafting is a propagation method largely used in solanaceous and cucurbit crops for enhancing their agronomic performances especially under (a)biotic stress conditions. Besides these grafting-mediated benefits, recent advances about microbial networking in the soil/root interface, indicated further grafting potentialities to act as soil...
Book
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Article
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Modern agriculture is facing many difficulties due to a rapidly changing climate, and environmental damage from agricultural production. The commitment of scientists and farmers to increase environmentally sustainable agricultural practices is one way to help mitigate environmental impacts. Among these practices, the use of biostimulants could be b...
Article
Full-text available
The comprehension of the bioactive fractions involved in the biostimulant activity of plant derived protein hydrolysates (PH) is a complex task, but it can also lead to significant improvements in the production of more effective plant biostimulants. The aim of this work is to shed light onto the bioactivity of different PH dialysis fractions (PH1...
Article
Full-text available
Plant biostimulants have gained great interest from the agrochemical industry and farmers because of their ability to enhance nutrient use efficiency and increase abiotic stress tolerance in crop production. However, despite the considerable potential of biostimulants for the sustainable development of the agricultural sector, the environmental eva...
Article
Full-text available
Vegetable growers need high-quality transplants to ensure the success of their crops. Treating seedlings with protein hydrolysates and beneficial fungus Trichoderma atroviride has the potential to improve the health and quality of vegetable transplants via various biostimulant activities, but the best rates and application methods to achieve these...
Article
Sweet basil (Ocimum basilicum L.) is an aromatic, tender leafy green cultivated for the fresh market and industrial processing. Like many other leafy vegetables, this species can be harvested more than once to increase productivity. Although the cut-and-come-again (CC) harvest strategy is widespread in basil, not much is known about the effect of t...
Article
L a definizione di biostimo-lante vegetale è stata a lungo dibattuta e attualmente quel-la presente nel nuovo regolamento europeo sui fertilizzanti (Reg. (UE) 2019/1009) è la seguente: "un pro-dotto fertilizzante dell'UE con la fun-zione di stimolare i processi nutrizio-nali delle piante indipendentemente dal tenore di nutrienti del prodotto, con l...
Preprint
Full-text available
Microbial-based biostimulants can improve crop productivity by modulating cell metabolic pathways including hormonal bal-ance. However, little is known about the microbial-mediated molecular changes causing yield increase. The present studyelucidates the metabolomic modulation occurring in pepper (Capsicum annuum L.) leaves at the vegetative and re...