Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2018 / Cilt: 8 - Sayı: 1
Antifungal and Herbicidal Activity of Trachystemon orientalis (L.) G. Don against Some Plant Pathogenic Fungi and Cuscuta campestris Yunck
- Pages
- 37–43
- DOI
- —
Abstract
The antifungal and herbicidal activity of Trachystemon orientalis (L.) G. Don aqueous plant extractswere evaluated against important plant pathogenic fungi (Sclerotinia sclerotiorum Lib. De Bary, Alternaria solani(Ellis & G. Martin) Sorauer, Phytophthora infestans (Mont.) de Bary, and Botrytis cinerea Pers.,) and Cuscutacampestris Yunck. Antifungal activity experiments were conducted under laboratory conditions and herbicidalactivity was tested in the greenhouses. The leaves, root and flowers of aqueous extracts of T. orientalis at 1, 3,5, 7, 10 and 20% doses were applied on Potato Dextrose Agar (PDA) and tested to plant diseases, and the doseof 5% of flowers and leaves aqueous extracts of T. orientalis were examined on tobacco (Nicotiana tabacum L.)and sugar beet (Beta vulgaris L.) against C. campestris. Antifungal activity displayed differences inhibited effectson mycelium growth of plant pathogenic fungi according to increasing extract dose and plant pathogenic fungi.The results showed that mycelial growth inhibitions were found effective in all extracts (leaf, flower and root) on S.sclerotiorum 0 to 100%, on A. solani 21 to 100%, on P. infestans 25 to 100% and, on B. cinerea 0 to 100% dependingon the extract dose. According to herbicidal activity result the development of C. campestris has been reduced bylooking the fresh (in tabocco: 0.3639 g and in sugar beet:0.6749 g) and dry (leaf extracts: in tabacco:0.0675 g andsugar beet: 0.1546 g; flower extracts: in tobacco 0.3246 g and sugar beet: 0.3421g) weight.
Özet
Trachystemon orientalis (L.) G. Don bitkisinin su ekstraktlarının bitki patojeni funguslara (Sclerotinia