Effects of seed priming on germination of sea fennel (Crithmum maritimum L.)

Motar (Crithmum maritimum L.) je višegodišnja biljna vrsta tolerantna na slanija tla. Zbog te otpornosti postoji mogućnost njegovog uzgoja na zahtjevnijim tlima. Za uzgoj motra i mogućnost njegovog kultiviranja potrebno je ispitati klijavost sjemena te definirati uvjete u kojima je klijavost najveća. U ovom radu sjeme motra, ukupno 700 sjemenki, izloženo je predtretmanu dH2O ili 50 mM NaCl-om tijekom sedam dana nakon čega je ispitana njegova klijavost na podlogama vlaženim različitim koncentracijama soli natrijevog klorida (NaCl). Sjeme motra za ovo istraživanje sakupljeno je u njegovom prirodnom staništu, u mjestu Lopar na otoku Rabu. Koncentracije soli natrijevog klorida korištene u tretmanima iznosile su: 0 mM (kontrola), 50 mM, 100 mM i 150 mM. Unatoč tome što motar raste uz morsku obalu te je izložen utjecaju morske vode tijekom cijelog životnog razdoblja, ovo istraživanje dokazuje kako ova vrsta ne preferira visok postotak soli u vodi u fazi klijanja. Najveći broj proklijalih sjemenki dali su tretmani u kojima je sjeme naklijavano na podlozi vlaženoj destiliranom vodom (0 mM NaCl) te otopinom s minimalnom koncentracijom od 50 mM NaCl-a.Sea fennel (Crithmum maritimum L.) is a perennial plant tolerant to the soil salinity. Because of that resistance there is possibility of cultivation on more demanding soils. For successful sea fennel cultivation, it is necessary to test the germinability of the seed and define the conditions in which it achieves maximum germinability. One of the necessary conditions is the optimal salinity of the soil or, more specifically, the water used during germination. In this research, a total of 700 seeds were exposed to priming treatments with dH2O or 50 mM NaCl over seven days after which its germinability was tested on the substrates wet with different concentrations of sodium chloride (NaCl). Seed used in this research was collected in Lopar, Island of Rab. The concentration of sodium chloride salt used in treatments were: 0 mM (control), 50 mM, 100 mM and 150 mM. Despite the fact that sea fennel grows along the sea shore and is exposed to sea water throughout its life, this study shows that sea fennel does not prefer a high water salinity during germination. The most successful treatments were those where seeds were irrigated with distilled water (0 mM NaCl) and a solution with a minimum concentration of 50 mM NaCl