GROWTH AND FLOWERING RESPONSE OF EUPHORBIA × LOMI POYSEAN CULTIVARS UNDER TWO IRRIGATION REGIMES

G. Fascella, P. Maggiore, M. Demma Carà, G.V. Zizzo
A one-year pot-cultivation trial of two Euphorbia  lomi Rauh Poysean hybrids with two irrigation regimes was carried out with the aim to evaluate plant response to drought and to define a growing protocol with limited water resources. Plants of the cultivars ‘Nam Chok’ and ‘Udom Sab’ were grown in a cold greenhouse in plastic pots filled with an organic mixed substrate. Two water regimes were applied: plants irrigated daily when substrate matric potential reached 10 kPa to 100% of container capacity (control); plants irrigated daily when matric potential was 30 kPa to 100% of container capacity (deficit). Irrigation regime moderately influenced plant growth and ornamental characteristics: plants with deficit irrigation produced more flower stems and showed higher root length as well higher top and root dry weight than control plants. Tested cultivars significantly differed for most of the considered parameters: plants of ‘Nam Chok’ produced a higher number of leaves, flowers, and shoots, and evidenced a higher leaf area than plants of ‘Udom Sab’.
Fascella, G., Maggiore, P., Demma Carà, M. and Zizzo, G.V. (2011). GROWTH AND FLOWERING RESPONSE OF EUPHORBIA × LOMI POYSEAN CULTIVARS UNDER TWO IRRIGATION REGIMES. Acta Hortic. 893, 939-943
DOI: 10.17660/ActaHortic.2011.893.105
https://doi.org/10.17660/ActaHortic.2011.893.105
deficit irrigation, hybrids, ornamentals, pot plant
English

Acta Horticulturae