@conference{
author = "Kravić, Natalija and Petrović, Tanja and Milivojević, Marija and Babić, Milosav and Čanak, Petar and Srdić, Jelena and Babić, Vojka",
year = "2023",
abstract = "Tokom čuvanja, dolazi do propadanja semena i gubitka životne sposobnosti,
energije i kvaliteta. S obzirom da se set međusobno povezanih biohemijskih
promena, tj. aktivacija enzima, sinteza hormona–stimulatora rastenja, razgradnja
inhibitora klijanja i reparacija ćelijskog oštećenja, javlja kao odgovor na izlaganje
semena agensima predtretmana, eksperiment je imao za cilj procenu ekasnosti
različitog prajminga semena na vigor i ukupnu performansu klijanaca kukuruza.
Izvršena je evaluacija četiri sorte kukuruza čuvane 5 i 35 godina u srednjoročnim
uslovima (t=4-5°C; RH=40-45%), standardnim testiranjem klijavosti na lter papiru
(BP, 20⇔30°C, ISTA Rules) i cold testom. Poređenjem sa netretiranim semenom, u
suboptimalnim uslovima cold testa je utvrđen pozitivan efekat primene predtretmana
semena
na
klijanje,
uključujući
i
energiju
klijanja,
kao
i
na
smanjenje
broja
mrtvih
semena,
naročito
izražen
kod
dugo
čuvanog
semena.
Ispitivanjem
ranog
porasta
klijanaca,
samo
u
cold
testu
je
evidentiran
pozitivan
uticaj
predtretmanana
na
rast
klijanaca dugo čuvanog semena. Međutim, kod semena kraćeg perioda
čuvanja, utvrđeno je da je uticaj predtretmana na izduživanje klijanca uglavnom
determinisan genotipom. Testiranjem na lter papiru semena i kraćeg i dugog
perioda čuvanja, utvrđen je pozitivan efekat KNO
predtretmana na svežu masu
korena, odnosno pozitivan efekat H
2
3
S predtretmana na svežu masu celog klijanca.
Oba predtretmana su uticala na porast suve mase korena samo kod dugo čuvanog
semena, odnosno na porast suve mase izdanka semena kraćeg perioda čuvanja.
Testiranjem u uslovima cold testa semena i kraćeg i dugog perioda čuvanja, utvrđeno
je da su svi predtretmani doprineli porastu sveže i naročito suve mase klijanca., During storage, seed deteriorates, loses viability and quality. Given that a
set of interlinked biochemical changes (i.e. activation of enzymes, synthesis of
growth-promoting substances, germination inhibitors’ metabolism and cell damage
repair) occurs in response to seed exposure to priming stimuli, this experiment
aimed at estimating the efficiency of different seed priming on vigour and overall
maize seedlings performance. Four maize landraces kept for 5 and 35 years under
cold storage–CS (t=4-5°C; RH=45-50%) were evaluated, using standard seed germination
test
on
lter
paper
(BP,
20⇔30°C,
ISTA
Rules)
and
cold
test.
Compared
to
unprimed
seeds
(control),
in
suboptimal
conditions
of
cold
test,
positive
effect
of
seed
priming
on
germination,
including
germination
energy,
as
well
as
on
the
reduction
of
the
number
of
dead
seeds,
was
determined,
while
being
more
pronounced
in
seeds
of
long
CS
lifespan.
In
addition,
a
positive
effect
of
seed
priming
on
early
seedlings
growth
was
recorded
in
seeds
of
long
CS
lifespan,
being
mainly
genotype-specific in seeds of short CS lifespan. For seeds of both the short and
long CS lifespans, standard testing on filter paper showed that the halo–KNO3
and
acidic–H2
S priming contributed to root, i.e. whole seedling fresh weight increase,
respectively. Both seed priming contributed to root i.e. shoot dry weight in seeds
of long i.e., short CS lifespan, respectively. Under conditions of cold test, in seeds
of both the short and long CS lifespans, a positive impact of all evaluated seed
priming on the seedlings fresh and especially dry weight was observed.",
publisher = "Beograd : Društvo genetičara Srbije, Beograd : Društvo selekcionara i semenara Republike Srbije",
journal = "10. simpozijum Društva selekcionera i semenara Republike Srbije i 7. simpozijum Sekcije za oplemenjivanje organizama Društva genetičara Srbije, Vrnjačka Banja, 16-18. oktobar 2023, Zbornik apstrakata",
title = "Germinacija nakon predtretmana semena i formiranje klijanaca kod kukuruza, Post-priming germination and seedling establishment in maize",
url = "https://hdl.handle.net/21.15107/rcub_rik_1342"
}
