title: Influence of field attack by carrot psyllid (Trioza apicalis Förster) on sensory quality, antioxidant capacity and content of terpenes, falcarindiol and 6-methoxymellein of carrots (Daucus carota L.).
abstract: The effect of different degrees of attack by carrot psyllid (Trioza apicalis) on quality parameters of carrots was studied in field experiments for two years. Treatments were different degrees of physical insect protection by floating row cover. An increasing attack level of psyllids showed an enhancement effect on the antioxidant capacity (ORAC), content of falcarindiol, 6-methoxymellein, and terpenes, and scores for bitter taste, chemical flavor, terpene flavor, and toughness. Carrot psyllid attack decreased the yield, total sugar, fructose, glucose, and sensory attributes sweet taste, color hue, color strength, crispiness, and juiciness. Carrot plants at 8-10 weeks of age tolerated attack by psyllids at low levels (2% leaves with curling or discoloration).
authors: Bioforsk-Norwegian Institute for Agricultural and Environmental Research , Arable crop division, Reddalsveien 215, NO-4886 Grimstad, Norway.
authors: Randi
authors: R
authors: Seljåsen
authors: Gjermund
authors: G
authors: Vogt
authors: Elisabeth
authors: E
authors: Olsen
authors: Per
authors: P
authors: Lea
authors: Lars Arne
authors: LA
authors: Høgetveit
authors: Torgeir
authors: T
authors: Tajet
authors: Richard
authors: R
authors: Meadow
authors: Gunnar B
authors: GB
authors: Bengtsson
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000032:analysis*; D018552:Daucus carota / Q000737:chemistry* / Q000469:parasitology; D053280:Diynes / Q000032:analysis*; D005233:Fatty Alcohols / Q000032:analysis*; D006430:Hemiptera / Q000502:physiology*; D006801:Humans; D049934:Isocoumarins / Q000032:analysis*; D010935:Plant Diseases / Q000469:parasitology*; D010936:Plant Extracts / Q000032:analysis*; D013649:Taste; D013729:Terpenes / Q000032:analysis*; D000094162:Phytoalexins
chemical_list: D000975:Antioxidants; D053280:Diynes; D005233:Fatty Alcohols; D049934:Isocoumarins; D010936:Plant Extracts; D013729:Terpenes; C034379:falcarindiol; C080190:6-methoxy-8-hydroxy-3-methyl-3,4-dihydroisocoumarin; D000094162:Phytoalexins