Utjecaj temperature čuvanja i predsjetvene pripreme na klijavost sjemena mušmulastog gloga (Crataegus azarolus var. pontica)

In this study, which aimed to determine the effects of storage temperatures on the germination of azarole (Crataegus azarolus var. pontica) seeds, pretreatments were applied to the seeds and were dry-stored for 10 months at four storage temperatures (-5, 5, 15 and 25ºC) for various periods in floating water and in an ash solution (2, 4 and 6 days), scarification in sulfuric acid (1, 3 and 6 hours), and combinations of scarification in sulfuric acid and floating in ash solution pretreatments. Also, the scarification rates in the seed coats that were corroded in sulfuric acid for 1, 3 and 6 hours were determined. The experimental design was a randomized complete block with four replications. As a result of the study, higher germination percentages (p<0.05) were achieved (20.95%) in seeds stored at 15ºC. The results show that the scarification in sulfuric acid is more effective (p>0.05) on the germination percentage of azarole seeds. The diameters of the seeds that were corroded in sulfuric acid for 1, 3 and 6 hours decreased by 6.15%, 10.47% and 11.51%, respectively. To achieve higher germination percentages, azarole seeds should be kept at 15ºC, and exposed to sulfuric acid for 3 hours with 4 day ash solution for sowing in August.Cilj ovoga istraživanja bio je utvrditi utjecaj temperature čuvanja na klijavost sjemena mušmulastog gloga (Crataegus azarolus var. pontica). Sjeme je prethodno obrađeno te je čuvano na suhom 10 mjeseci na četiri temperature čuvanja (-5, 5, 15 i 25 ºC). Predsjetvena priprema provedena je u različitim ­periodima plutanjem u vodi s otopljenim pepelom (2, 4 i 6 dana), skarifikacijom u sumpornoj kiselini (1, 3 i 6 sati) te kombinacijom skarifikacije u sumpornoj kiselini i plutanjem u otopini pepela. Također, određen je stupanj skarifikacije sjemene ljuske koje su korodirale u sumpornoj kiselini 1, 3 i 6 sati. Eksperiment je dizajniran u slučajnom blok rasporedu s četiri ponavljanja. Kao rezultat istraživanja postignut je veći postotak (20,95 %) klijanja (p<0,05) kod sjemena čuvanog na 15 ºC. Rezultati pokazuju da skarifikacija u sumpornoj kiselini ima veći učinak (p>0,05) na postotak klijanja sjemena mušmulastog gloga. Promjer sjemena koje je korodiralo u sumpornoj kiselini 1, 3 i 6 sati smanjio se redom za 6,15 %, 10,47 % i 11,51 %. Za sjetvu u kolovozu, kako bi se postigao veći postotak klijavosti, sjeme mušmulastog gloga trebalo bi čuvati na 15 ºC i tretirati sumpornom kiselinom u trajanju od 3 sata te 4 dana u otopini pepela