Emerging of ginco in relation of substrate and testing temperature

Abstract

The effect of the substrate and temperature of the investigation were analyzed as well as seed scarification on sprouting of ginkgo. Investigations were carried out on four types of substrate: sand, soil, peat and mixture of soil and peat (ration 50:50) and on three temperatures: T1=5/15°C (12/12 h alternating), T2=10/20°C (12/12 h alternating) and T3=20°C constantly. Counting of sprouted plants/shoots was carried out after sprouting of two permanent leaves, and finished 45 days after sowing. Substrate had significant effect on sprouting so the percentage of sprouted plants/shoots in peat was the highest and in sand the lowest on all three temperatures. Temperature as factor also had significant effect on sprouting so it was determined that sprouting on all substrates was best on the temperature of constant 20°C, whereas on temperature 5/15°C (12/12 h alternating) sprouting was the worst. Scarified seed sprouted poorly on all temperatures and all substrates therefore this measure should not be applied. .

Analiziran je uticaj supstrata i temperature ispitivanja, kao i skarifikacije semena na nicanje ginka. Istraživanja su provedena na četiri tipa supstrata: pesak, zemlja, treset i mešavina zemlja - treset (odnos 50%:50%) i na tri temperature: T1=5/15°C (12/12 h naizmenično), T2=10/20°C (12/12 h naizmenično) i T3=20°C konstantno. Brojanje izniklih biljaka je obavljeno po nicanju dva stalna lista, a završeno je 45 dana nakon setve. Supstrat je imao značajnog uticaja na nicanje tako da je procenat izniklih biljaka u tresetu bio najveći a u pesku najmanji na sve tri temperature. Temperatura, kao faktor, je imala značajan uticaj na nicanje te je na temperaturi od 20°C konstantno nicanje bilo najbolje na svim supstratima, dok je na temperaturi 5/15°C (12/12 h naizmenično) bilo najslabije. Skarifikovano seme je jako slabo nicalo na svim temperaturama i u svim supstratima tako da ovu meru ne bi trebalo primenjivati. .