Adaptation of the tropical hybrid Euphorbia×lomi Rauh to the exposure to the Mediterranean temperature extremes

Sergio Saia, Marcello Militello, Giovanni Gugliuzza, Marcello Militello, Antonio Giovino

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3 Citazioni (Scopus)

Abstract

Poysean (Euphorbia × lomi Rauh) has been introduced in the Mediterranean countries as an ornamental plant for indoor uses. When used outdoor, few information is available about its ability to withstand the Mediterranean temperature extremes. An experiment in an open stand was performed to evaluate poysean tolerance to the winter and summer temperatures of the thermo Mediterranean climate and its ornamental value for urban greening. Two genotypes of poysean (Nguen Muang, NM; and Soi Budsanin, SB) with similar bracts and flower colours were grown at either 2 or 3 plants per pot during 23 months. Number of flower racemes and leaves per plant and plant height were recorded monthly. Overall ornamental value of each pot was scored by means of a panel test (PT) performed by independent examiners. Score assignment was homogeneous between examiners. On average, NM showed a 36% lower number of flower racemes, but a 30% higher ornamental value than SB. During fall and beginning of the winter, NM showed a higher number of flower racemes per plant than SB. Increasing plant density from 2 to 3 plants per pot did not influence flower racemes and leaves per plant. From March to November of the second year, number of flower racemes in NM was similar to the first year, whereas SB flower production was markedly higher, which can be due to a genotypic difference to Mediterranean temperature tolerance. Correlation between number of flower racemes per pot and ornamental value was higher in SB than NM, which suggest that in NM flower abundance contribute less to the pot ornamental value. The present data suggest that poysean is able to withstand the Mediterranean temperature extremes and still produces flower racemes during winter, which indicate it as a suitable ornamental plant in outdoor applications.
Lingua originaleEnglish
pagine (da-a)-
Numero di pagine7
RivistaURBAN FORESTRY & URBAN GREENING
Volumen.d
Stato di pubblicazionePublished - 2014

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Euphorbia
ornamental value
flowers
inflorescences
temperature
ornamental plants
winter
bracts
Mediterranean climate
plant density
Mediterranean region
leaves

All Science Journal Classification (ASJC) codes

  • Forestry
  • Soil Science
  • Ecology

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Adaptation of the tropical hybrid Euphorbia×lomi Rauh to the exposure to the Mediterranean temperature extremes. / Saia, Sergio; Militello, Marcello; Gugliuzza, Giovanni; Militello, Marcello; Giovino, Antonio.

In: URBAN FORESTRY & URBAN GREENING, Vol. n.d, 2014, pag. -.

Risultato della ricerca: Article

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abstract = "Poysean (Euphorbia × lomi Rauh) has been introduced in the Mediterranean countries as an ornamental plant for indoor uses. When used outdoor, few information is available about its ability to withstand the Mediterranean temperature extremes. An experiment in an open stand was performed to evaluate poysean tolerance to the winter and summer temperatures of the thermo Mediterranean climate and its ornamental value for urban greening. Two genotypes of poysean (Nguen Muang, NM; and Soi Budsanin, SB) with similar bracts and flower colours were grown at either 2 or 3 plants per pot during 23 months. Number of flower racemes and leaves per plant and plant height were recorded monthly. Overall ornamental value of each pot was scored by means of a panel test (PT) performed by independent examiners. Score assignment was homogeneous between examiners. On average, NM showed a 36{\%} lower number of flower racemes, but a 30{\%} higher ornamental value than SB. During fall and beginning of the winter, NM showed a higher number of flower racemes per plant than SB. Increasing plant density from 2 to 3 plants per pot did not influence flower racemes and leaves per plant. From March to November of the second year, number of flower racemes in NM was similar to the first year, whereas SB flower production was markedly higher, which can be due to a genotypic difference to Mediterranean temperature tolerance. Correlation between number of flower racemes per pot and ornamental value was higher in SB than NM, which suggest that in NM flower abundance contribute less to the pot ornamental value. The present data suggest that poysean is able to withstand the Mediterranean temperature extremes and still produces flower racemes during winter, which indicate it as a suitable ornamental plant in outdoor applications.",
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AU - Saia, Sergio

AU - Militello, Marcello

AU - Gugliuzza, Giovanni

AU - Militello, Marcello

AU - Giovino, Antonio

PY - 2014

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N2 - Poysean (Euphorbia × lomi Rauh) has been introduced in the Mediterranean countries as an ornamental plant for indoor uses. When used outdoor, few information is available about its ability to withstand the Mediterranean temperature extremes. An experiment in an open stand was performed to evaluate poysean tolerance to the winter and summer temperatures of the thermo Mediterranean climate and its ornamental value for urban greening. Two genotypes of poysean (Nguen Muang, NM; and Soi Budsanin, SB) with similar bracts and flower colours were grown at either 2 or 3 plants per pot during 23 months. Number of flower racemes and leaves per plant and plant height were recorded monthly. Overall ornamental value of each pot was scored by means of a panel test (PT) performed by independent examiners. Score assignment was homogeneous between examiners. On average, NM showed a 36% lower number of flower racemes, but a 30% higher ornamental value than SB. During fall and beginning of the winter, NM showed a higher number of flower racemes per plant than SB. Increasing plant density from 2 to 3 plants per pot did not influence flower racemes and leaves per plant. From March to November of the second year, number of flower racemes in NM was similar to the first year, whereas SB flower production was markedly higher, which can be due to a genotypic difference to Mediterranean temperature tolerance. Correlation between number of flower racemes per pot and ornamental value was higher in SB than NM, which suggest that in NM flower abundance contribute less to the pot ornamental value. The present data suggest that poysean is able to withstand the Mediterranean temperature extremes and still produces flower racemes during winter, which indicate it as a suitable ornamental plant in outdoor applications.

AB - Poysean (Euphorbia × lomi Rauh) has been introduced in the Mediterranean countries as an ornamental plant for indoor uses. When used outdoor, few information is available about its ability to withstand the Mediterranean temperature extremes. An experiment in an open stand was performed to evaluate poysean tolerance to the winter and summer temperatures of the thermo Mediterranean climate and its ornamental value for urban greening. Two genotypes of poysean (Nguen Muang, NM; and Soi Budsanin, SB) with similar bracts and flower colours were grown at either 2 or 3 plants per pot during 23 months. Number of flower racemes and leaves per plant and plant height were recorded monthly. Overall ornamental value of each pot was scored by means of a panel test (PT) performed by independent examiners. Score assignment was homogeneous between examiners. On average, NM showed a 36% lower number of flower racemes, but a 30% higher ornamental value than SB. During fall and beginning of the winter, NM showed a higher number of flower racemes per plant than SB. Increasing plant density from 2 to 3 plants per pot did not influence flower racemes and leaves per plant. From March to November of the second year, number of flower racemes in NM was similar to the first year, whereas SB flower production was markedly higher, which can be due to a genotypic difference to Mediterranean temperature tolerance. Correlation between number of flower racemes per pot and ornamental value was higher in SB than NM, which suggest that in NM flower abundance contribute less to the pot ornamental value. The present data suggest that poysean is able to withstand the Mediterranean temperature extremes and still produces flower racemes during winter, which indicate it as a suitable ornamental plant in outdoor applications.

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