Temperature Effects on Cuscuta campestris Yunk. Seed Germination
Uticaj temperature na klijanje semena Cuscuta campestris Yunk.
Author
Saric-Krsmanovic, Marija
Bozic, Dragana
Pavlovic, Danijela
Radivojevic, Ljiljana
Vrbnicanin, Sava
Keywords
Cuscuta campestrisGermination rate
Seedling length
Temperature
stopa klijanja
dužina klijanaca
temperatura
Metadata
Show full item recordAbstract
Studies of biological characteristics of seeds and conditions for their germination have
a major importance for planning and executing rational measures of weed control. The
aim of this study was to investigate the effect of different temperatures on germination
of C. campestris seeds. Three treatments (T1- storage at room temperature; T2 – exposure
to 4°C for 30 days; T3 – scarification by concentrated sulphuric acid) differing in manipulation
with seeds before germination were tested at different temperatures (5°C, 10°C, 15°C,
20°C, 25°C, 30°C, 35°C, 40°C, 45°C). Germinated seeds were counted daily for ten days and
the length of seedlings was measured on the last day. The results showed that differences
in germination of C. campestris seeds were very prominent between temperatures, as well
as between treatments T1, T2 and T3. Seeds failed to germinate at 5°C and 45°C in all treatments
(T1, T2, T3). Germination ranged from 6.25 at 10°C to 96.88%, the highest percentage,
achieved at 30°C. Izučavanje bioloških karakteristika semena i uslova u kojima klijaju ima veliki značaj
za planiranje i realizaciju racionalnih mera za kontrolu korova. Cilj ovog istraživanja je bio
da se ispita efekat različitih temperatura na klijanje semena C. campestris. U ogled su bila
uključena tri tretmana (T1 – semena čuvana u laboratorijskim uslovima na temperaturi 22-
25°C, T2 – semena koja su prethodno 30 dana izlagana niskoj temperaturi (4°C), T3 – semena
koja su skarifikovana koncentrovanom sumpornom kiselinom), pri čemu su svi tretmani
ispitivani na sledećim temperaturama: 5°C, 10°C, 15°C, 20°C, 25°C, 30°C, 35°C, 40°C, 45°C.
Svakodnevno, u periodu od deset dana, rađeno je prebrojavanje proklijalih semena, a poslednjeg
dana su izmerene i dužine klijanaca. Dobijeni rezultati ukazuju da postoje značajne
razlike u klijanju semena u odnosu na ispitivane temperature i tretmane. Semena nisu
klijala na temperaturama od 5°C i 45°C ni u jednom od rađenih tretmana. Procenat klijanja
se kretao od 6,25% do 96,88%, pri čemu je najveći procenat u sva tri tretmana zabeležen
na temperaturi od 30°C.