Effect of Bacterial-algal Biostimulant on the Yield and Internal Quality of Lettuce (Lactuca sativa L.) Produced for Spring and Summer Crop

Kopta, Tomáš; Pavlíková, Marcela; Sękara, Agnieszka; Pokluda, Robert; Maršálek, Blahoslav

doi:10.15835/nbha46211110

Cited by 46 publications

(36 citation statements)

References 29 publications

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“…Therefore, the PBS30U5C system is the best choice among treatments because it presented the best result in the two plant growth evaluations performed. For comparison, the literature shows that the use of biostimulation fertilizing systems based on bacterial–algal preparation led to a significantly higher lettuce weight compared to the control, equal to 22.7% . In turn, the treatments with organic fertilizers increased the lettuce weight by 18% .…”

Section: Resultsmentioning

confidence: 99%

Controlled‐release fertilizer based on poly(butylene succinate)/urea/clay and its effect on lettuce growth

Baldanza

Souza

Filho

et al. 2018

J of Applied Polymer Sci

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Controlled‐release fertilizer is one of the most critical tools in agribusiness for decreasing environmental impacts. Thus, the development of bio‐based systems able to induce the slow release of fertilizers has become the focus of numerous researchers. In this sense, this work presents a slow‐release fertilizer prepared by melt mixing of poly(butylene succinate) filled with 30 wt % urea and 5 wt % montmorillonite clay. The obtained materials were characterized using FTIR, XRD, and SAXS. Also, the release of urea was investigated using gravimetric and spectrophotometric tests. Finally, a vegetable growth analysis was performed to evaluate the development of lettuce (Lactuca sativa L.). The best composite material can increase the diameter of the lettuce by 67%, whereas the conventional use of urea increased this diameter by 48%. Therefore, the presented materials are useful as fertilizer systems.

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Section: Resultsmentioning

confidence: 99%

Controlled‐release fertilizer based on poly(butylene succinate)/urea/clay and its effect on lettuce growth

Baldanza

Souza

Filho

et al. 2018

J of Applied Polymer Sci

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“…Moreover, a formulation composed of C. vulgaris and plant growth-promoting bacteria (Bacillus licheniformis, Bacillus megatherium, Azotobacter sp., Azospirillum sp., and Herbaspirillum sp.) showed to positively affect the fresh weight, total antioxidant capacity, and total carotenoids content in lettuce cultivated for spring and summer crop [16]. More recently, an extract from Scenedesmus quadricauda showed a biostimulant effect on lettuce seedlings, increasing their growth at shoot level, and by influencing the activities of several enzymes involved in the primary and secondary plant metabolisms [14].…”

Section: Introductionmentioning

confidence: 99%

Foliar Spray Application of Chlorella vulgaris Extract: Effect on the Growth of Lettuce Seedlings

et al. 2021

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Lettuce seedlings often require the use of fertilizers for their cultivation management to achieve appropriate yield. However, for eco-sustainable chemical-fertilizers-free agronomy, the implementation of totally organic farming often cannot support lettuce productivity, therefore new natural biostimulants able to increase lettuce yield could be considered of great interest. In this preliminary work, the foliar spray application of a Chlorella vulgaris extract in lettuce seedlings was investigated in order to achieve better yield performance. Its biostimulant effect was evaluated by monitoring the morphobiometric parameters, chlorophylls, carotenoids, total protein contents, and several enzymatic activities involved in primary and secondary metabolisms of the plant. The experimental trials were carried out by growing lettuce seedlings on inert substrate (pumice) with a 16 h photoperiod for 21 days. The treatment consisted of three consecutive applications by foliar spraying using a concentration of the C. vulgaris extract, corresponding to 1 mg Corg L−1, which were performed one week apart. The results showed that the C. vulgaris extract positively influenced the growth of lettuce seedlings, by increasing the fresh and dry weights, chlorophylls, carotenoids, protein content, and ashes at shoot level. From a biochemical point of view, primary and secondary metabolisms of shoots, in particular nitrogen metabolism, were positively influenced. At the root level, the extract increased dry matter, proteins, and ash content.

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“…Lettuce (L. sativa L.) is one of the most important vegetable crops grown in the Mediterranean area; however, it is a moderately sensitive crop to salt, therefore the use of biostimulant is required as a very useful practice to enhance yield [23]. Kopta et al [24] found that a preparation based on microalgae (C. vulgaris) and plant growth-promoting bacteria (Bacillus licheniformis, Bacillus megatherium, Azotobacter sp., Azospirillum sp., and Herbaspirillum sp.) positively affected the yield and nutritional parameters of lettuce cultivated as a spring and summer crop by increasing the fresh weight, the total antioxidant capacity, and total carotenoid content.…”

Section: Introductionmentioning

confidence: 99%

Biostimulant Effect and Biochemical Response in Lettuce Seedlings Treated with A Scenedesmus quadricauda Extract

Puglisi

Bella

Rovetto

et al. 2020

Plants

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The use of natural biostimulants is becoming an attractive option in order to reduce the use of fertilizer and increase the yield of crops. In particular, algal extracts are suitable candidates as they positively affect plant physiology. Among crops, lettuce often requires the use of biostimulants to improve both the quality and quantity of production. The aim of this work is to investigate the potential use of a Scenedesmus quadricauda extract as a biostimulant in order to obtain sustainable cultivation and a reduction in the cost of chemical fertilizers in lettuce cultivation. Therefore, the effect of S. quadricauda extract on lettuce seedlings was explored by evaluating the physiological parameters, chlorophyll, carotenoid, and total protein contents as well as several plant enzymatic activities involved in primary and secondary metabolisms. The experiment was performed by growing plants on inert substrate (pumice) with a 16-h photoperiod, by carrying out two consecutive radical treatments, one week apart, using a concentration of the extract corresponding to 1 mg Corg L−1. Lettuce plants were sampled at 1, 4, and 7 days from the first treatment and 7 days from the second treatment. The results showed that the S. quadricauda extract positively affected the growth of lettuce seedlings, mainly acting at the shoot level, determining an increase in dry matter, chlorophylls, carotenoids, proteins, and influencing the activities of several enzymes involved in the primary metabolism.

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Effect of Bacterial-algal Biostimulant on the Yield and Internal Quality of Lettuce (Lactuca sativa L.) Produced for Spring and Summer Crop

Cited by 46 publications

References 29 publications

Controlled‐release fertilizer based on poly(butylene succinate)/urea/clay and its effect on lettuce growth

Controlled‐release fertilizer based on poly(butylene succinate)/urea/clay and its effect on lettuce growth

Foliar Spray Application of Chlorella vulgaris Extract: Effect on the Growth of Lettuce Seedlings

Biostimulant Effect and Biochemical Response in Lettuce Seedlings Treated with A Scenedesmus quadricauda Extract

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