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2022, vol. 26, br. 3-4, str. 106-110
Uticaj meteoroloških faktora i veličine semena na vitalnost semena inbred linija suncokreta
Naučni institut za ratarstvo i povrtarstvo, Novi Sad, Srbija

e-adresamilos.krstic@ifvcns.ns.ac.rs
Projekat:
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (institucija: Naučni institut za ratarstvo i povrtarstvo, Novi Sad) (MPNTR - 451-03-68/2020-14/200032)
This research was supported by the Science Fund of the Republic of Serbia, the project "Creating climate smart sunflower for future challenges - SmartSun" (grant number #7732457)
This research was conducted as a part of activities of the Centre of Excellence for Innovations in Breeding of Climate Resilient Crops - Climate Crops, Institute of Field and Vegetable Crops, Novi Sad, Serbia

Ključne reči: klimatski faktori; klijavost; inbred linije; veličina semena; suncokret
Sažetak
Klimatske promene neizbežno utiču na biljnu proizvodnju, ali je teško predvideti direktan uticaj na vitalnost (klijavost) proizvedenog semena. Klijanje je najznačajniji pokazatelj vitalnosti semena i ključna faza u životnom ciklusu biljaka. Klijavost semena je pod uticajem faktora spoljašnje sredine tokom vegetacije, ali i načina dorade (prema krupnoći semena). Cilj rada je bio da se ispita uticaj tri faktora na klijavost proizvedenog semena inbred linija suncokreta i to: i) genotip, ii) klimatski uslovi u proizvodnoj godini, i iii) krupnoća semena dobijena tokom separacije semena prilikom dorade. Klijavost semena četiri inbred linije suncokreta je ispitana standardnim laboratorijskim testovima po ISTA pravilima, šest meseci nakon dorade i prolaska dormantnosti prirodnim putem. Korišćena su semena krupnije i sitnije veličine, dobijena u dve uzastopne godine, koje su karakterisali različit klimatski uslovi (suma padavina, srednje mesečne temperature i vlažnost vazduha tokom oplodnje). Podaci su analizirani trofaktorijalnom analizom varijanse, kao i koeficijentom korelacije. Koeficijent varijacije iznosio je 8,19%. Prosečna klijavost semena je bila značajno viša u 2020. godini (92%) u odnosu na 2021. godinu (85%). Efekat veličine semena nije bio statistički značajan, bez obzira na testiranu inbred liniju. Može se zaključiti da na povećanje klijavosti semena inbred linija suncokreta najviše utiču genotip, ali i povećanje padavina, minimalna i maksimalna vlažnost vazduha tokom cvetanja i smanjenje srednjih mesečnih temperatura, što je potvrđeno i koeficijenti korelacije između navedenih agroekoloških uslova i klijavosti proizvedenog semena.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/jpea26-42032
primljen: 30.12.2022.
prihvaćen: 10.02.2023.
objavljen u SCIndeksu: 17.03.2023.
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