title: Effect of farming systems on the yield, quality parameters and sensory properties of conventionally and organically grown potato (Solanum tuberosum L.) tubers.
abstract: The objectives of this two-year research were to study the impact of two different farming types, conventional and organic, on the yield and sensory properties of five Lithuanian varieties of potato tuber. The parameters and properties examined were: phenolic acids; dry matter and starch content; and the spread and intensity of Phytophthora infestans growth. It was determined that potato yield fluctuates with the variety, but for conventional farming it is significantly (p<0.05) higher than that obtained by organic farming. The farming type has no significant effect (p>0.05) on the content of phenolic acids. No significant effect (p>0.05) of farming type on dry matter and starch content, or sensory properties was found. No significant relation (p>0.05) was found between the content of phenolic acids and P. infestans spread. The spread of P. infestans was faster and infection was heavier in organically grown potatoes.
authors.affiliation: Voke Branch of Lithuanian Research Centre for Agriculture and Forestry, Zalioji a. 2, Traku Voke, LT-02232 Vilnius, Lithuania. Electronic address: vaiva.brazinskiene@gmail.com.
authors.forename: V
authors.initials: V
authors.lastname: Brazinskiene
authors.forename: R
authors.initials: R
authors.lastname: Asakaviciute
authors.forename: A
authors.initials: A
authors.lastname: Miezeliene
authors.forename: G
authors.initials: G
authors.lastname: Alencikiene
authors.forename: L
authors.initials: L
authors.lastname: Ivanauskas
authors.forename: V
authors.initials: V
authors.lastname: Jakstas
authors.forename: P
authors.initials: P
authors.lastname: Viskelis
authors.forename: A
authors.initials: A
authors.lastname: Razukas
mesh_terms: D055598:Chemical Phenomena; D002934:Cinnamates / Q000032:analysis / Q000378:metabolism; D003296:Cooking; D060467:Disease Resistance; D063427:Food Quality; D058870:Food, Organic / Q000032:analysis* / Q000469:parasitology; D006801:Humans; D008097:Lithuania; D055595:Mechanical Phenomena; D009812:Odorants; D058871:Organic Agriculture; D010636:Phenols / Q000032:analysis / Q000378:metabolism; D055750:Phytophthora infestans / Q000254:growth & development / Q000302:isolation & purification; D010935:Plant Diseases / Q000469:parasitology / Q000517:prevention & control; D035281:Plant Tubers / Q000737:chemistry* / Q000254:growth & development / Q000378:metabolism / Q000469:parasitology; D012677:Sensation; D011198:Solanum tuberosum / Q000737:chemistry* / Q000254:growth & development / Q000378:metabolism / Q000469:parasitology; D013045:Species Specificity; D013213:Starch / Q000032:analysis / Q000378:metabolism; D013649:Taste
chemical_list: D002934:Cinnamates; D010636:Phenols; D013213:Starch
keywords: Conventional and organic farming; Phenolic acids; Phytophthora infestans; Potatoes; Sensory properties; Yield