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- Title
Cultivation of barley seedlings in a coffee silverskin-enriched soil: effects in plants and in soil.
- Authors
Salbitani, Giovanna; Chianese, Maria Rosaria; Bossa, Rosanna; Bencivenga, Tammaro; Carraturo, Federica; Nappo, Antonio; Guida, Marco; Loreto, Francesco; Carfagna, Simona
- Abstract
Aims: Coffee silverskin (CS) is the most abundant waste from coffee roasting. In this research, the potential of CS as soil fertilizer for barley (Hordeum vulgare L.) cultivation was evaluated. Methods: Barley plants were grown, for 10 days from the start of germination, in soils mixed with different CS percentages (0, 2, 6 or 10%). The effects of CS addition on soil capacity to retain water and on the mold/yeast community were evaluated. Physio-morphological and biochemical responses of leaves and roots of barley plants growing in CS-enriched soil were evaluated. Results: Root and shoot length decreased in plants grown with CS, but biomass was less affected and even increased at 2% CS. Photosynthesis was higher in barley seedlings grown on CS-enriched soil than in control plants. However, Chl b was reduced in leaves of plants grown with CS. The total leaf protein content did not change with moderate CS additions in soil. However, when grown in soil with 10% CS, a significant reduction of total protein and Rubisco was observed. Extracts of barley shoots from plants grown in soil with 10% CS showed a greater antioxidant capacity with respect to all other experimental conditions. Conclusions: We conclude that CS addition to soil may improve soil property to retain water and, at low concentrations (2% w/w) positively affects barley physiology and growth.
- Subjects
PLANT-soil relationships; BARLEY; COFFEE beans; BARLEY farming; PLANT shoots; COFFEE waste; OXIDANT status
- Publication
Plant & Soil, 2024, Vol 498, Issue 1/2, p199
- ISSN
0032-079X
- Publication type
Article
- DOI
10.1007/s11104-023-06428-2