UTICAJ SADRŽAJA FOSFORA U SEMENU NA RAST BILJAKA 11 SORTI TVRDE PŠENICE (TRITICUM DURUM DESF.)
Sažetak
Fosfor ima važnu ulogu u rastu biljaka. U tom kontekstu, preporučuje se primena alternativnih metoda, kao što je gajenje odgovarajućih sorti radi zadovoljenja potreba biljaka za hranljivim materijama i smanjenja negativnih uticaja hemijskih đubriva. Stoga je cilj ovog istraživanja bio da se ispita uticaj sadržaja fosfora u semenu na rast biljaka 11 sorti tvrde pšenice (Triticum durum Desf.) različitog porekla. Ispitivane su različite morfološke osobine i njihov odnos sa količinama fosfora. Ove osobine obuhvataju dužinu korena i stabla, broj listova, broj bočnih izdanaka (bokora) i broj klasića. Dobijeni rezultati su pokazali značajne razlike u ispitivanim morfološkim osobinama među proučavanim sortama pšenice. Pored toga, utvrđena je pozitivna korelacija između nivoa fosfora u semenu i pojedinih morfoloških osobina, naročito dužine stabla, broja listova i izdanaka, kao i dužine korena. Zaključuje se da je veći sadržaj fosfora u semenu pomogao pojedinim sortama da ostvare dobar početni rast. Ovo ukazuje na potrebu da se ovo svojstvo uzme u obzir prilikom izbora sorti tvrde pšenice za područja u kojima je oskudan sadržaj fosfora u zemljištu u vreme setve. Takođe, ovo se uklapa u širu globalnu viziju o poboljšanju održivosti poljoprivredne proizvodnje, kroz smanjenu upotrebu fosfatnih đubriva.
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