Z Katedry Sadownictwa i Przyrodniczych Podstaw Ogrodnictwa
Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Abstract. An atempt was made to sercen selected genotypes of ornamental plants from Amaranthaceae and Chenopodiaceae families for their tolerance to salinity stress and to evaluation of their usefulness for cultivation in urban area of higth salinity.
Key words:
salinity stress, halophyte, Amaranthaceae, Chenopodiaceae
Summary
Preliminary analysis of salt tolerance of 15 genotypes of ornamental plants from Amaranthaceae and Chenopodiaceae families were performed. Plants were cultivated in soil containing 2 g of KCl per dm-3 and after 4 weeks were treated with a 0, 2, 6, 14 and 30 g per dm-3 of commercial street- defrosting salt mixure. The most tolerant among genotypes tested was Atriplex hortensis while the less Amaranthus paniculatus cv. ‘Monarch’. Amaranthus tricolor cultivars, even salt tolerant, were characterized with a low level of biomass production and several agrotechnical problems and, for this reason, should not be recommended for cultivation in urban areas.