The Effect of Biostimulant and Fertilizer on “Low Input” Lettuce Production

Dudaš, Slavica; Šola, Ivana; Sladonja, Barbara; Erhatić, Renata; Ban, Dean; Poljuha, Danijela

doi:10.1515/botcro-2016-0023

Cited by 31 publications

(23 citation statements)

References 16 publications

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“…Dudaš et al. () stated that lettuce production in winter on the Adriatic coast, especially in nonheated plastic tunnels, requires longer cultivation and is characterized by lower head mass and yield. The main barriers for lettuce cultivation in this area are heat and water shortage in summer and the deficiency of light and frost incidence in winter.…”

Section: Biostimulant Effects On Edible Horticultural Speciesmentioning

confidence: 99%

Biostimulants research in some horticultural plant species—A review

Parađiković

Teklić

Zeljković

et al. 2018

Food and Energy Security

185

112

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Different substances from the natural origin which have beneficial effects on plant growth and development, stress resistance, and crop yield and quality can be called biostimulants or biostimulators. Their physiological effects depend on their composition as they contain various organic and mineral compounds which plants can use as metabolites, growth regulators, and nutrients; however, biostimulants cannot be considered biofertilizers. Biostimulants applied in plant production have been widely considered as an environment‐friendly agricultural practice—and so are now among tools used in sustainable agriculture. Here, we discuss the results of the biostimulants’ effect investigations performed in Croatia, focused on horticultural crops, with edible plant species, such as tomato, garlic, bell pepper, lettuce, strawberry, garden cress, and basil, as well as ornamentals, such as wild rose, wax begonia, Mexican and French marigold, moss rose, everlasting flower, common zinnia, English primrose, and scarlet sage. The investigated biostimulants were applied at all plant growth stages, from germination to full plant and fruit or flower commercial maturity, using the seed treatment, foliar application, or irrigation. To evaluate biostimulant effectiveness, various morphological, physiological, and quality traits were analyzed. In this wide array of studies, the evaluated biostimulants mostly enhanced seed and transplant vigor, stimulated vegetative growth, improved nutrient acquisition and distribution within the plant, increased antioxidative capacity of plant tissues, contributing to higher stress tolerance, and improved plant yield and fruit/flower quality. In general, the research reviewed here implies possible benefits of biostimulant application in horticultural production, especially in stressful growth conditions, such as the transplant stage, reduced fertilization, or incidence of other abiotic stress. Considering possible interactions among the contained physiologically active compounds, the effects on plants may depend on dose, time of treatment, growth conditions, and plant species. Therefore, further research of biostimulant applications in horticultural production is suggested.

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Section: Biostimulant Effects On Edible Horticultural Speciesmentioning

confidence: 99%

Biostimulants research in some horticultural plant species—A review

Parađiković

Teklić

Zeljković

et al. 2018

Food and Energy Security

185

112

View full text Add to dashboard Cite

show abstract

“…Considering the increased market demands for higher availability of food products of enhanced nutritional quality, the use of biostimulants has been suggested as an eco-friendly practice for crop production under non-optimal conditions (abiotic stress conditions) to retain high yields without compromising the quality of the final product [13,23,27,28]. Special attention was given to research on leafy vegetables since they are more prone than other horticultural crops to abiotic stressors and drought, thermal, nutrient, and salinity stress in particular [4,19,24,27,29,30]. Spinach (Spinacia oleracea L.) is a leafy vegetable crop which is widely cultivated throughout the Mediterranean basin in open-field and protected conditions.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.)

et al. 2019

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In the present study, the effect of biostimulants application on the nutritional quality and bioactive properties of spinach cultivated in protected environment under water stress conditions was evaluated. For this purpose, four commercially available biostimulant products (Megafol (MEG), Aminovert (AM), Veramin Ca (V), Twin Antistress (TA), and two spinach genotypes (Fuji F1 and Viroflay) were tested under two irrigation regimes (normal irrigation (W+), and water-holding (W–). Fat and carbohydrates content was favored by water stress when Megafol (MEGW+) and Veramin (VW+) were applied on Fuji plants, while calorific value was also increased by MEGW+ treatment. In contrast, protein and ash content increased when AMW– and TAW+ were applied on Viroflay plants. Raffinose and glucose were the most abundant sugars, followed by sucrose and fructose, with the highest contents recorded for Fuji plants when AMW+ (fructose, glucose and total carbohydrates), CW– (sucrose), and TAW– (raffinose) treatments were applied. Regarding organic acids, oxalic and malic acid which had the highest contents for the TAW– (Viroflay plants) and AMW– (Fuji plants) treatments, respectively. α- and γ-tocopherol were the only isoforms detected with MEGW– and VW– inducing the biosynthesis of α-tocopherol, while AMW+ increased γ-tocopherol content in Fuji plants. The main fatty acids were α-linolenic and linoleic acids which were detected in the highest amounts in AMW–, AMW+, and TAW+ the former and in AMW–, VW–, and CW+ the latter. Regarding phenolic compounds content, peak 12 (5,3′,4′-Trihydroxy-3-methoxy-6:7-methylenedioxyflavone-4′-glucuronide) was the most abundant compound, especially in Viroflay plants under normal irrigation and no biostimulants added (CW–). The antioxidant and cytotoxic activity of the tested samples did not show promising results when compared with the positive controls, while a variable antibacterial activity was recorded depending on the tested biostimulant, irrigation regime and genotype. In conclusion, a variable effect of the tested biostimulants and irrigation regimes was observed on bioactive properties and chemical composition of both spinach genotypes which highlights the need for further research in order to make profound conclusions regarding the positive effects of biostimulants under water stress conditions.

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“…inoculation (Fiorentino et al, 2018). Experiment with a natural algae extract showed higher vitamin C content in butterhead lettuce grown in the non-heated plastic tunnel (Dudaš et al, 2016). In the control treatment, the highest vitamin C content was measured in autumn (short day).…”

Section: Resultsmentioning

confidence: 92%

The productivity and quality of Lactuca sativa as influenced by microbiological fertilisers and seasonal conditions

Stojanović

Petrović

Žuža

et al. 2020

Zemdirbyste-Agriculture

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Lettuce (Lactuca sativa L.) is an annual, leafy crop with a short growth in cool season. The aim of this study was to determine the effect of microbiological fertilisers, genotype and growing seasons on the fresh weight (FW), concentration of nitrate and vitamin C in the rosette (head) of red lettuce. The greenhouse experiment included three cultivars ('Murai', 'Gaugin' and 'Carmesi') of red lettuce grown in fertile soil during successive growing seasons: autumn, winter and spring. Three types of microbiological fertilisers: (1) mixture of fungi and bacteria and their products, referred to as effective microorganisms (EM), (2) containing Trichoderma spp. and (3) mixture of EM and Trichoderma spp., were applied for red lettuce. Microbiological fertilisers were applied in the soil and via foliar spray before planting. Significantly higher FW of the rosette was in spring and winter than in autumn. The 'Murai' showed significantly the highest (264.7 g) FW of the rosette in spring. Trichoderma spp. fertiliser and the combination of effective microorganisms and Trichoderma spp. significantly increased FW of the rosette for the 'Murai' and 'Gaugin' grown in autumn. The highest nitrate concentration was observed for winter grown 'Carmesi' (805.2 mg kg-1) treated by effective microorganisms, and the lowest for spring grown 'Gaugin' (62.2 mg kg-1) without microbial fertilisers. Generally, the application of microbiological fertilisers contributed to a significantly higher concentration of nitrate in the rosette of red lettuce. The concentration of nitrate did not exceed maximum level for protected lettuce (EC No 563/2002). In spring, significantly the highest concentration of vitamin C (12.2 mg 100 g-1 FW) was found in the 'Carmesi' treated with Trichoderma spp. Microbiological fertilisers contributed to significantly higher concentration of vitamin C in the 'Gaugin' and 'Carmesi' grown in winter and spring. This study indicated that genotype, treatment and growth season affected all the tested parameters highlighting the importance of application of Trichoderma spp. or the combination of Trichoderma spp. with effective microorganisms.

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The Effect of Biostimulant and Fertilizer on “Low Input” Lettuce Production

Cited by 31 publications

References 16 publications

Biostimulants research in some horticultural plant species—A review

Biostimulants research in some horticultural plant species—A review

The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.)

The productivity and quality of Lactuca sativa as influenced by microbiological fertilisers and seasonal conditions

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