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2018, vol. 55, br. 3, str. 118-124
Varijacija NDVI vrednosti i veza sa prinosom kod ozimog dvoredog ječma
Naučni institut za ratarstvo i povrtarstvo, Novi Sad

e-adresamilan.mirosavljevic@ifvcns.ns.ac.rs
Projekat:
Savremeno oplemenjivanje strnih žita za sadašnje i buduće potrebe (MPNTR - 31066)

Ključne reči: biomasa; broj zrna; Hordeum vulgare; indeks refleksije; masa zrna; NDVI
Sažetak
Jednostavne analize koje se koriste za indirektno određivanje biomase predstavljaju potencijalno značajne metode za predviđanje rasta useva. Normalizovani diferencijalni vegetacioni indeks (NDVI) se često upotrebljava za ocenu biomase, prinosa i drugih osobina. Cilj ovog istraživanja je bilo utvrđivanje varijacije u NDVI vrednostima i veze sa najznačajnijim agronomskim osobinama kod elitnih genotipova dvoredog ozimog ječma. Ogled sa elitnim genotipovima ozimog ječma je izveden tokom dve sezone. Očitavanje NDVI vrednosti je izvršeno tokom sredine cvetanje, dok su prinos zrna i komponente prinosa određene iz uzorka nakon kombajniranja u punoj zrelosti. Rezultati ovog istraživanja ukazuju da je uticaj genotipa predstavaljao osnovni izvor varijacije kod većine proučavanih osobina. Prinos zrna kod genotipova ozimog dvoredog ječma je bio u većoj vezi sa brojem zrna po jedinici površine u odnosu na masu zrna. NDVI vrednosti u cvetanju u obe sezone su bile u pozitivnoj vezi sa prinosom, brojem zrna i visinom biljaka, dok veza sa masom zrna nije bila značajna. Značajna genotipska varijacija za NDVI vrednosti i značajna pozitivna povezanost sa prinosom zrna i brojem zrna ukazuje da vrednosti NDVI u cvetanju mogu da se efikasno koriste za indirektnu identifikaciju produktivnih genotipova ozimog dvoredog ječma.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/RatPov1803118M
objavljen u SCIndeksu: 07.03.2019.
metod recenzije: dvostruko anoniman
Creative Commons License 4.0

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