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Ratarstvo i povrtarstvo
2012, vol. 49, br. 3, str. 250-256
jezik rada: srpski
vrsta rada: izvorni naučni članak
doi:10.5937/ratpov49-1200


Alelopatski efekat vodenog ekstrakta iz korenskog sistema divljeg sirka na klijavost semena i početni razvoj soje, graška i grahorice
aAgricultural University, Plovdiv, Bulgaria
bInstitute of Forage Crops, Pleven, Bulgaria

e-adresa: golubinova@abv.bg

Sažetak

U ovom radu se predstavljeni rezultati istraživanja alelopatskog efekta hladnog vodenog ekstrakta iz korenovog sistema divljeg sirka (Sorghum halepense (L.) Pers.) na klijavost semena i početni razvoj soje (Glycine max (L.)), graška (Pisum sativum (L.)) i grahorice (Vicia sativa (L.)) pod laboratorijskim uslovima. Utvrđen je raspon inhibitornog efekta vodenog korenskog ekstrakta na klijavost semena soje, graška i grahorice od 28,8% do 86,3%. Takođe, inhibitorni efekat vodenog korenovog ekstrakta divljeg sirka na razvoj inicijalne klice ovih vrsta varirao je u rasponu 17,1-86,1% a na akumulaciju sveže biomase u inicijalnoj klici u rasponu 8,3-97,9%. Utvrđene su vrednosti LC50(P=0.05) koje variraju između 46,40 i 98,28 g l-1 suve biomase iz korenovog sistema divljeg sirka i mogu se postaviti u sledećem redosledu: soja → grašak → grahorica.

Ključne reči

alelopatija; divlji sirak; ekstrakt; grahorica; grašak; koren; seme; soja; Sorghum halepense (L.) Pers.

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