Valorization of Posidonia oceanica biomass: Role on germination of cucumber and tomato seeds

Ferrández-Gómez, Borja; Jordá, Juana D.; Cerdán, Mar; Sánchez, Antonio

doi:10.1016/j.wasman.2023.10.010

Cited by 7 publications

(4 citation statements)

References 77 publications

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“…On the other hand, it has been shown that the application of Si from marine extracts on tomato and cucumber seeds significantly alleviated the effects of salt stress, improving various parameters such as tomato growth, photosynthetic pigment and soluble protein content, the photosynthetic rate and root morphological traits [6,46], reinforcing the results obtained in this work indicating the advantages of root application over the foliar application of this type of fertilizer in tomato crops.…”

Section: Discussionsupporting

confidence: 83%

Enhancing Salt Stress Tolerance in Tomato (Solanum lycopersicum L.) through Silicon Application in Roots

Ferrández-Gómez,

Jordá,

Cerdán

et al. 2024

Plants

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Soil salinization poses a significant threat to agricultural productivity, necessitating innovative agronomic strategies to mitigate its impact. This study focuses on improving salt stress resistance in tomato plants through the application of silicon (Si) in roots. A greenhouse experiment was carried out under normal conditions (control, and 1 and 4 mM Si) and under salinity stress (salt control, and 1 and 4 mM Si). Various parameters were analyzed in leaves and roots. Under normal conditions, tomato plants grown in non-saline conditions exhibited some toxicity when exposed to Na2SiO3. As for the experiments under salt stress conditions, Si mitigated oxidative damage, preserving root cell membrane integrity. The concentration of malondialdehyde was reduced by 69.5%, that of proline was reduced by 56.4% and there was a 57.6% decrease in catalase activity for tomato plants treated with 1 mM Si under salt stress. Furthermore, Fe uptake and distribution, under salt conditions, increased from 91 to 123 mg kg−1, the same concentration as that obtained for the normal control. In all cases, the lower dose produced better results under normal conditions than the 4 mM dose. In summary, this research provides a potential application of Si in non-fertigated crop systems through a radicular pathway.

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Section: Discussionsupporting

confidence: 83%

Enhancing Salt Stress Tolerance in Tomato (Solanum lycopersicum L.) through Silicon Application in Roots

Ferrández-Gómez,

Jordá,

Cerdán

et al. 2024

Plants

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“…Their study underscored the viability of utilizing P. oceanica residues without composting, noting no observed phytotoxicity effect. However, a phytotoxic effect may arise at high concentrations of Na, as it competes with other cations in the soil, thereby reducing the cation exchange capacity [47]. Contrarily, according to [48], moderate concentrations of Na (6 dS m−1) during a growth experiment of S. lycopersicum did not influence cation availability for plants.…”

Section: P Oceanica Debris As Growing Substratementioning

confidence: 92%

The Decomposition Dynamics and Substrate Component Potential of Biomass from the Seagrass Posidonia oceanica (L.) Delile

Amoroso,

Cozzolino,

Idbella

et al. 2024

Horticulturae

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Posidonia oceanica, a Mediterranean Sea seagrass, generates significant litter debris in coastal regions, adversely affecting tourism. To manage this debris, we explored two strategies: (i) promoting in situ decomposition by introducing ligninolytic microbes from forest microbiomes and (ii) utilizing P. oceanica debris as a substrate for ornamental and horticultural species. To achieve this goal, we conducted a one-year experiment using litter bags in mesocosms that simulate in situ conditions, evaluating the second strategy with different application rates (10%, 30%, 50%, and 100%) of fresh and decomposed P. oceanica debris mixed with peat or soil, with or without mineral fertilizer. The results revealed the resistance of P. oceanica necromass to decomposition; in fact, the introduction of forest microbiomes led to a major decomposition rate, albeit with constrained practical applicability. Utilizing P. oceanica debris as a substrate without fertilizer resulted in a modest growth response relative to the application rate, particularly accentuated in horticultural species compared to ornamental ones. Mineral fertilizer alleviated adverse effects at lower application rates; however, a notable decline in growth was observed at the 100% application rate. At application rates of 10% and 30%, certain crops demonstrated improved growth compared to the control. In summary, our study suggests the potential use of raw P. oceanica debris as a growth substrate within the 10% to 50% dosage range.

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“…Other aqueous extracts that have been tested on different plants confirmed multiple times the positive effects of these types of seed treatments on improving germination performance. These include Posidonia oceanica extracts applied on tomato [71], Atriplex halimus extract applied on sorghum (Sorghum bicolor) [72], and sunflower extracts applied to peas (Pisum sativum) [73].…”

Section: Examples Of the Application Of Plant-based Biostimulants As ...mentioning

confidence: 99%

Plant-Based Biostimulants for Seeds in the Context of Circular Economy and Sustainability

Wazeer,

Shridhar Gaonkar,

Doria

et al. 2024

Plants

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Plant-based biostimulants (PBs), agents rich in bioactive compounds, are emerging as key players able to sustainably improve plant growth and crop productivity to address food security. PBs are generally applied as foliar spray or soil irrigation, while more recently, the application as seed priming treatments is being envisaged as a highly sustainable method to also improve seed quality and germination. Therefore, this review proposes to explore the use of PBs for the seeds industry, specifically discussing about the relevance of product market values, sustainable methods for their production, why and how PBs are used for seed priming, and pinpointing specific strengths and challenges. The collected research studies indicate that PBs applied to seeds result in improved germination, seedling growth, and stress tolerance, although the molecular mechanisms at work are still largely overlooked. The high variability of bioactive molecules and used sources point towards a huge reservoir of nature-based solutions in support of sustainable agriculture practices.

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Valorization of Posidonia oceanica biomass: Role on germination of cucumber and tomato seeds

Cited by 7 publications

References 77 publications

Enhancing Salt Stress Tolerance in Tomato (Solanum lycopersicum L.) through Silicon Application in Roots

Enhancing Salt Stress Tolerance in Tomato (Solanum lycopersicum L.) through Silicon Application in Roots

The Decomposition Dynamics and Substrate Component Potential of Biomass from the Seagrass Posidonia oceanica (L.) Delile

Plant-Based Biostimulants for Seeds in the Context of Circular Economy and Sustainability

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