Natura Montenegrina No 3, 2004

UDK 581.142:582.475(045)=111 Pinus peuce

VARIABILITY OF YOUNG SEEDLINGS OF MACEDONIAN PINE

B. NIKOLIĆ^[1], B. BATOS^[2], M. VESELINOVIĆ^[3]

S y n o p s i s

Young seedlings of Pinus peuce Griseb. were obtained in laboratory from the seed harvested in two successive years at mountain Mučanj, Serbia. One portion of the seed was sowed in wet sand without presowing treatement. The other portion of seed was sowed in the containers consisting of the mixture of soil, peat and sand, after the standard presowing wet-cold treatement. Young seedlings (3-weeks old) which were grown in wet sand obtained  50% better results in length of epicotyle and 30% better results in length of cotyledons than those grown in soil mixture. There were no significant differences between treatements of sowing in other characteristics of seedlings (hypocotile length, hypocotile width, number of cotyledons and width of cotyledons). Differences between seedlings according to age of seed and individual trees were also discussed.

Key words: young seedlings, Pinus peuce Griseb., epicotyle,  hypocotile, cotyledons,  morphology

S i n o p s i s

VARIJABILNOST KLIJAVACA MOLIKE

Klijavci Pinus peuce Griseb. dobijeni su u laboratoriji iz semena sakupljenog u dve uzastopne godine na planini Mučanj, Srbija. Jedan deo semena je posejan u vlažan pesak bez pretsetvenog tretmana. Drugi deo semena je sejan u kontejnerima, u mešavinu zemlje, treseta i peska nakon standardnog presetvenog tretmana. Klijavci (3 nedelje stari) koji su rasli u vlažnom pesku postigli su za 50% bolje rezultate u dužini epikotila i 30% bolje rezultate u dužini kotiledona u odnosu na one koji su rasli u smeši zemlje. U drugim karakteristikama klijavaca (dužina i širina hipokotila, broj i širina kotiledona) nije bilo signifikantnih razlika između tretmana sejanja. Takođe su diskutovane razlike između klijavaca u odnosu na starost semena i individualna stabla.

Ključne reči: klijavci, Pinus peuce Griseb.,  epikotil, hipokotil,  kotiledoni,  morfologija