Page 49 - Srednje skole - radovi

UTICAJ ZRAĈENJA He-Ne LASERA NA KLIJANJE SEMENA PŠENICE

EFFECTS OF IRRADIATION WITH HE-NE LASER ON THE GERMINATION OF
WHEAT SEEDS

Autor: MARIJA JEREMID, učenica IV razreda VIII beogradske gimnazije

Mentori: VOIN PETROVID, dipl. biohemičar, Institut „Vinča“, Beograd VEDRANA SAVID, student
Farmaceutskog fakulteta u Beogradu

RЕZIME

Ispitan je uticaj zračenja helijum-neonskog lasera na klijanje semena pšenice. Određivana je
klijavost semena, kao i aktivnost α-amilaze, enzima koji razgrađuje skrob i koji je aktivan u procesu

klijanja. Upoređivan je broj proklijalih semena u tretiranim grupama sa brojem proklijalih semena u
kontrolnoj grupi. Zaključeno je da je klijavost zračenih semena u odnosu na kontrolnu grupu povećana,
kao i da nema statistički značajne razlike u aktivnosti α-amilaze između tretiranih i kontrolne grupe.

Razlika u dužini klica između zračenih grupa i kontrolne je statistički zanemarljiva.

Kljuĉne reĉi: uticaj zraĉenja lasera, klijanje, aktivnost α-amilaze, pšenica

SUMMARY

The influence of the He-Ne (helium-neon) laser radiation on the sprouting of the wheat seed is

examined in this work. The sprouting of the seeds were determined, as well as the activity of the α-
amylases, an enzyme which decomposes the starch, which is active during the sprouting process. The
number of sprouted seeds in treated groups were contrasted with the number of sprouted seeds of the

controlled group. According to the research there were several conclusions. It was determined that the
sprouting of the radiated seeds was increased compared to the control group, but there was no statistical

significant difference in the activity of the α-amylases between the treated and the control. The difference
in the length of the sprouts of the irradiated group and the control is statistically insignificant.

Key words: effects of irradiation with laser, germination, activity of the α-amylases, wheat