title: The possibility of useful usage of biodegradation products of sunflower plants.
abstract: Heads of sunflower (Helianthus annuus L.) were first biodegraded at 55 degrees C by their microflora. Biodegradation products of sunflower heads (BPSH) were analyzed. They were found to contain 9.77% dry matter, 3.98% total ash, 3.18% crude protein and 5.75% total organic matter. BOD load was determined as 4.80 g/100 g. Subsequently, the effects of BPSH at various concentrations (1.0%, 2.5%, 10% and 100%) on the seed germination and some growth parameters of Phaseolus vulgaris L., Cicer arietinum L. and Triticum vulgare L. were investigated. The percentages of seed germination and germination index of seeds were similar between the control and 1.0% and 2.5% BPSH groups, but these values decreased at higher concentrations. On the other hand, growth of the seedlings gradually increased up to a concentration of 10% BPSH and decreased at 100% concentration. As a result, at concentrations up to 10% the product was found to be beneficial for growth of plants.
authors.affiliation: Science and Letters Faculty, Department of Biology, Atatürk University, 25240 Erzurum, Turkey. ykayabiy@yahoo.com
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Kaya
authors.forename: Meryem
authors.initials: M
authors.lastname: Sengül
authors.forename: Hatice
authors.initials: H
authors.lastname: Ogütçü
authors.forename: Omer Faruk
authors.initials: OF
authors.lastname: Algur
mesh_terms: D000383:Agriculture / Q000379:methods*; D001673:Biodegradation, Environmental; D018556:Crops, Agricultural / Q000254:growth & development*; D035264:Flowers / Q000737:chemistry / Q000378:metabolism*; D018525:Germination / Q000502:physiology; D006368:Helianthus / Q000737:chemistry / Q000378:metabolism*