Browsing by Subject "yam crude extract"
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Post-infectional Production of Phytoalexin in White Yam (Discorea Rotundata Linn.) Innoculated with Botryodiplodia Theobromae Pat (Obafemi Awolowo University, 1986)Four phytoalexins were induced D. rotundata in post-infectionally with B. theobromae. Three of the Phytoalexins were isolated and identified with the aid of ultra-violet mass and nuclear magnetic resonance spectral data ...