Appraisal of Combined Applications of Trichoderma virens and a Biopolymer-Based Biostimulant on Lettuce Agronomical, Physiological, and Qualitative Properties under Variable N Regimes
| Autor: | Maria Giordano, Nunzio Fiorentino, Eugenio Cozzolino, Christophe El-Nakhel, Nadia Lombardi, Antonio Pannico, Valerio Cirillo, Petronia Carillo, Giuseppe Colla, Edris Shabani, Mauro Napolitano, Sheridan L. Woo, Leo Sabatino, Youssef Rouphael |
|---|---|
| Přispěvatelé: | Rouphael, Youssef, Carillo, Petronia, Colla, Giuseppe, Fiorentino, Nunzio, Sabatino, Leo, El-Nakhel, Christophe, Giordano, Maria, Pannico, Antonio, Cirillo, Valerio, Shabani, Edri, Cozzolino, Eugenio, Lombardi, Nadia, Napolitano, Mauro, Woo, Sheridan L., Rouphael, Y., Carillo, P., Colla, G., Fiorentino, N., Sabatino, L., El-Nakhel, C., Giordano, M., Pannico, A., Cirillo, V., Shabani, E., Cozzolino, E., Lombardi, N., Napolitano, M., Woo, S. L., Rouphael Y., Carillo P., Colla G., Fiorentino N., Sabatino L., El-Nakhel C., Giordano M., Pannico A., Cirillo V., Shabani E., Cozzolino E., Lombardi N., Napolitano M., Woo S.L. |
| Rok vydání: | 2020 |
| Předmět: |
physiological mechanism
0106 biological sciences Antioxidant Lactuca sativa L. var. longifolia medicine.medical_treatment Lactuca Settore AGR/04 - Orticoltura E Floricoltura Photosynthesis 01 natural sciences lcsh:Agriculture chemistry.chemical_compound Photosynthesi Human fertilization Nitrate nitrate medicine Transplanting functional quality microbial biostimulant photosynthesis biology Chemistry Inoculation lcsh:S 04 agricultural and veterinary sciences Ascorbic acid biology.organism_classification Horticulture 040103 agronomy & agriculture 0401 agriculture forestry and fisheries non-microbial biostimulant Agronomy and Crop Science mineral profile 010606 plant biology & botany |
| Zdroj: | Agronomy Volume 10 Issue 2 Agronomy, Vol 10, Iss 2, p 196 (2020) |
| ISSN: | 2073-4395 |
| Popis: | The current research elucidated the agronomical, physiological, qualitative characteristics and mineral composition of lettuce (Lactuca sativa L. var. longifolia) after treatments with a beneficial fungus Trichoderma virens (TG41) alone or in combination with a vegetal biopolymer-based biostimulant (VBP &lsquo Quik-link&rsquo ). The experiment consisted of lettuce plants grown in three N conditions: sub-optimal (0N kg ha&minus 1), optimal (70N kg ha&minus 1), and supra-optimal (140N kg ha&minus 1) N levels. Lettuce grown under 0N fertilization showed a significant increase in fresh yield when inoculated with TG41 alone (45%) and a greater increase with TG41 + VBP biostimulant (67%). At 48 days after transplanting, both the TG41 alone or TG41+VBP biostimulant induced higher values of CO2 assimilation in comparison to the control. The mineral concentrations in leaf tissues were greater by 10% for K and 12% for Mg with the TG41+VBP treatments compared to the untreated lettuce. The lettuce plants receiving either TG41 alone or TG41+VBP biostimulants had a significantly lower nitrate content than any of the untreated controls. In non-fertilized conditions, plants treated with TG41+VBP biostimulants produced lettuce of higher premium quality as indicated by the higher antioxidant activity, total ascorbic acid (+61%&ndash 91%), total phenols (+14%) and lower nitrate content when compared to the untreated lettuce. |
| Databáze: | OpenAIRE |
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