Seed diversity and germination behavior in Nerium oleander L.

نویسندگان

چکیده

Nerium oleander var. ‘Villa Romaine’, commonly called oleander, is an ornamental shrub that exists in Tunisia the wild and cultivated form. This plant frequently propagated produced nurseries used urban plantings on roadsides. The effects of nature plants (spontaneous or cultivated), climatic conditions (localities), altitude (from 6 to 447 m) seed shape, size, germination Tunisian populations, were investigated. Seeds harvested from 23 locations belonging six bioclimatic stages distributed North South Tunisia. parameters studied area, roundness, J index, rate. A significant variation was obtained between categories (cultivated spontaneous), zones altitudes. smaller showed higher rates, compared with spontaneous which had large seeds a low Climatic geographical location effect morphology; lower humid small for both types, they also index value high On other hand, upper Saharan, roundness rate lowest. Also, altitudes presented values those collected low-altitude sites.

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ژورنال

عنوان ژورنال: Notulae Scientia Biologicae

سال: 2023

ISSN: ['2067-3264', '2067-3205']

DOI: https://doi.org/10.55779/nsb15211411