Halophytes relations to soil ionic composition

Abstract

The concentration of Na+, K+, Ca2+ and Mg2+ in the root and above­ground organs of three halophyte species (Salicornia europaea, Suaeda maritima and Salsola soda) as well as in the soil where they grew from maritime and inland saline areas were investigated. The aim of the research was to evaluate the capability of some halophyte species to absorb different cations and to find if a differentiation of salt accumulation between the populations from inland and maritime saline areas exists. In five analyzed localities (Tivatska solila, Ulcinj salina, Slano Kopovo, Melenci and Okanj), the external Na+ concentrations exceeded those of the other investigated cations. The investigated halophytes accumulated more Na+ than Mg2+, Ca2+ and K+ and more cations were recorded in the above-ground organs than in the root. The populations from maritime saline areas generally had higher cation concentrations than plants from inland saline areas.

U ovom radu su ispitivane koncentracije Na+, K+, Ca2+ i Mg2+ u korenu i nadzemnim biljnim organima kod tri halofitske vrste (Salicornia europaea, Suaeda maritima i Salsola soda), kao i sastav zemljišta na kojima ove biljke rastu sa maritimnih i kontinentalnih halobioma. Cilj rada je bio da se utvrdi sposobnost halofitskih vrsta da apsorbuju različite katjone, kao i da se ispita da li postoji diferencijacija populacija sa maritimnih i kontinentalnih halobioma u odnosu na sposobnost njihove akumulacije soli. U zemljištu kod pet analiziranih lokaliteta (Tivatska solila, Ulcinjska solana, Slano Kopovo, Melenci i Okanj) je konstatovana veća koncentracija Na+ u odnosu na druge katjone. Istraživane halofitske vrste akumuliraju više Na+ nego Mg2+, Ca2+ i K+. Takođe, veća koncentracija katjona zabeležena je u nadzemnim organima, nego u korenu. U vegetativnim organima populacija sa maritimnih halobioma konstatovana je veća koncentracija katjona u poređenju sa biljkama sa kontinentalnih halobioma.