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2019, vol. 56, br. 3, str. 76-81
Mogućnosti korišćenja fiziološke efikasnosti azota u oplemenjivanju pšenice u smislu ekološke poljoprivrede
Univerzitet Educons, Sremska Kamenica

e-adresaolivera.nikolic@educons.edu.rs
Projekat:
Razvoj novih tehnologija gajenja strnih žita na kiselim zemljištima primenom savremene biotehnologije (MPNTR - 31054)

Ključne reči: azot; efikasnost; fiziološka efikasnost azota; oplemenjivanje; pšenica; zrno
Sažetak
Uprkos nepoželjnim efektima po životnu sredinu, upotreba đubriva u poljoprivredi, posebno azotnih, obavezan je preduslov za dobijanje dovoljnih količina hrane za ljudsku i stočnu ishranu. Stoga je izazov, u nastupajućim decenijama kada se očekuje povećanje ljudske populacije, razviti visoko-produktivne i efikasne poljoprivredne sisteme, a istovremeno doprineti očuvanju i zaštiti ekosistema. U ostvarenju tog cilja od značajne pomoći može da bude multidisciplinarni pristup oplemenjivanju pšenice, kao najvažnije hlebne vrste, kao i uključivanje fizioloških pokazatelja efikasnosti ishrane biljaka azotom u taj proces. Prema tome, u ovom radu se analizira fiziološka efikasnost azota (FEN), njegova heritabilnost i varijabilnost, povezanost sa prinosom zrna, a zatim se sa aspekta ovog indikatora ocenjuju genotipovi ozime pšenice selekcionisani u Srbiji. Najbolje vrednosti FEN zabeležene su kod genotipova KG 165/2 i Lazarica. Na osnovu ovih rezultata izdvojeni genotipovi se mogu smatrati nosiocima poželjnih osobina, sa aspekta teorije oplemenjivanja pšenice, unapređenja proizvodne efikasnosti, zaštite životne sredine i razvoja ekološke poljoprivrede. Za definisanje oplemenjivačkih programa i dobijanje pouzdanih rezultata neophodno je istraživanje ostalih fizioloških parametara, njihovih međusobnih korelacionih veza i korelacionih veza sa prinosom i kvalitetom zrna pšenice.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/ratpov56-21778
objavljen u SCIndeksu: 03.01.2020.
metod recenzije: dvostruko anoniman
Creative Commons License 4.0

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