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UTICAJ TEĈNOG DIMA SAGORELE SLAME NA KLIJANJE I RAST ZELENE
SALATE

(LACTUCA SATIVA L.)

AUTOR: MANĐELA BLAŽID, učenica III razred, Pete beogradske gimnazije

MENTORI: MSLAĐANA TODOROVID, dipl. biolog, istraživač, DRAGANA BOŽID, dipl. biolog, istraživač

REZIME

Dim koji se oslobađa tokom velikih šumskih požara predstavnja jedan od najvažnijih hemijskih

stimulatora na klijanje semena nekih biljnih vrsta. U radu je ispitivan efekat tečnog dima dobijenog od
sagorele slame na klijavost i rast zelene salate Lactuca sativa L. Eksperimentalno je utvrđeno da rastvor

tečnog dima dobijen ovim putem u koncentracijama višim od 3% inhibira klijanje semena zelene salate.
Takođe je utvrđeno da u koncentracijama nižim od 3% ovaj rastvor ima stimulatorno dejstvo na rast

hipokotila i primarnog korena L. Sativa, što bi moglo nadi primenu u ratarstvu. Dužina izlaganja semena
rastvoru dima ne utiče na njegovo klijanje.

Ključne reči: dim sagorele slame, klijanje, Lactuca sativa, rastvor

SUMMARY

Smoke that is realised during forest fires has a great influence on sead intergrowth of some plant
speaces. In this research the effect of liquid smoke which’s appearance is a result of burt hay on

inetrgrowth and growth of Lactuca sativa was tested.

As a result of experimental research it was concluded that solution of liquid smoke in

concentration higher than 3% inhibites intergrowth of lattuce’s seed. It was also concluded that in
concentration lower than 3% this solution has stimulative effect on growth of hipokotilae and primary

root of L. Sativa, which could be used in field works. The lenght of time during which seeds have been
exposed to the smoke does not have a impact on seed intergrowth.

Key words: smoke solution, germination, influence, Lactuca sativa, liquid