title: Preliminary study of the green algae chlorella (Chlorella vulgaris) for control on the root-knot nematode (Meloidogyne arenaria) in tomato plants and ectoparasite Xiphinema indexin grape seedlings.
abstract: The alternative ecological methods require investigation of many organo-biological means for plant protection against dangerous root parasites such as root-knot nematode Meloidogyne arenaria and some ectoparasites (Xiphinema index). The Bulgarian organic product - dry extract of green alga Chlorella vulgaris ("The Golden Apple"-Plamen Barakov) is the latest product, which in comparative aspect gives the best results. Series of laboratory and pot experiments are carried out with tomato (cv. Bele and cv. Ideal) and grape seedlings (cv. Cabernet Sauvignon). Different dosages of Chlorella from 0.5 g to 2 g per plant/pot are investigated. The first results show that even low dosages had double effect - on the one hand they suppress the parasite development and on the other hand they strongly stimulate plant growing. The very important conclusion is that Chlorella vulgaris ignores the negative influence of M. arenaria and X. index. These results give us opportunity for future model and field investigations of Chlorella vulgaris with the aim of its practical application.
authors.affiliation: Sofia University, Biological Faculty, Mendeleev str. 12, 4000 Plovdiv, Bulgaria.
authors.forename: B
authors.initials: B
authors.lastname: Choleva
authors.forename: T
authors.initials: T
authors.lastname: Bileva
authors.forename: Y
authors.initials: Y
authors.lastname: Tzvetkov
authors.forename: P
authors.initials: P
authors.lastname: Barakov
mesh_terms: D000818:Animals; D048408:Chlorella vulgaris / Q000502:physiology*; D018551:Solanum lycopersicum / Q000469:parasitology*; D009348:Nematoda / Q000254:growth & development*; D010572:Pest Control, Biological / Q000379:methods; D018517:Plant Roots / Q000469:parasitology; D014431:Tylenchoidea / Q000254:growth & development*; D027843:Vitis / Q000469:parasitology*