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Polska Bibliografia Naukowa

Issue 16 (3) 2017 pp. 163-171

Giancarlo Fascella1, Youssef Rouphael2

1Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria, Centro di Ricerca Difesa e Certificazione, Bagheria, Italy
2
Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy

Influence of container volume and irrigation system on photosynthesis, water productivity and growth of potted Euphorbia × lomi

Abstract:

The determination of an adequate container volume that maximize vegetative growth and the adoption of an efficient irrigation system in soilless culture, which improve water use efficiency without affecting crop performance, have become a priority in ornamental industry. A greenhouse experiment was conducted aiming to assess the effects of two container volumes (1 dm3 or 3 dm3) and two irrigation systems (closed drip-irrigation or subirrigation) on growth parameters, ornamental quality, SPAD index, leaf gas exchange, agronomical and physiological water use efficiency (WUEA and WUEP) of containerized Euphorbia × lomi Rauh. There were no significant differences in terms of plant growth parameters between the two irrigation systems. The subirrigation system was more efficient in terms of water use than the drip-irrigation system since it could save on average 27% of water. The WUEA recorded with subirrigation in 3 dm3 and 1 dm3 containers were significantly higher by 43% and 81% compared with those recorded with drip-irrigation. The plant height, leaf number, leaf area, root length and shoot dry biomass were significantly lower by 45.7%, 39.5%, 45.5%, 35.1% and 43.1%, respectively when the Euphorbia × lomi plants were cultivated in the 1 dm3 containers. The best crop performance recorded in the 3 dm3 containers was related to a higher photosynthetic activity and higher leaf chlorophyll content (i.e. SPAD index) with respect to the plants grown in the 1 dm3 containers.

pub/16_3_163.pdf Full text available in Adobe Acrobat format:
http://www.hortorumcultus.actapol.net/volume16/issue3/16_3_163.pdf
Keywords: leaf gas exchange, ornamentals, pot volume, chlorophyll content, recirculating nutrient solution, sub-irrigation, water use efficiency

DOI: 10.24326/asphc.2017.3.16

For citation:

MLA Fascella, Giancarlo, and Youssef Rouphael. "Influence of container volume and irrigation system on photosynthesis, water productivity and growth of potted Euphorbia × lomi." Acta Sci.Pol. Hortorum Cultus 16.3 (2017): 16. DOI: 10.24326/asphc.2017.3.16
APA Fascella, G., & Rouphael, Y. (2017). Influence of container volume and irrigation system on photosynthesis, water productivity and growth of potted Euphorbia × lomi. Acta Sci.Pol. Hortorum Cultus 16 (3), 16. DOI: 10.24326/asphc.2017.3.16
ISO 690 FASCELLA, Giancarlo, ROUPHAEL, Youssef. Influence of container volume and irrigation system on photosynthesis, water productivity and growth of potted Euphorbia × lomi. Acta Sci.Pol. Hortorum Cultus, 2017, 16.3: 16. DOI: 10.24326/asphc.2017.3.16
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