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ŠUMARSKI LIST 7-8/2021 str. 59     <-- 59 -->        PDF

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Sažetak
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.
Ključne riječi: mušmulasti glog, temperatura čuvanja, granica klijavosti, skarifikacija, otopina pepela