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615490 
Journal Article 
Phytochemical Screening and Nematoxic Effect of Brimstone, Morinda lucida, on Nematode Pests of Amaranth, Celosia argentea 
Olabiyi, TI; Oyedunmade, EEA; Ibikunle, GJ 
2008 
Yes 
Biological Agriculture and Horticulture
ISSN: 0144-8765 
26 
2 
131-137 
Phytochemical constituents of brimstone leaf, Morinda lucida, and nematoxic effects of brimstone leaf on root knot nematode pest of Celosia argentea (L.) local variety were assessed in the laboratory and screen house. Brimstone leaf was analysed for the presence of saponins, flavonoids, tannins, sterols, glycosides and alkaloids in the laboratory. It was observed that only saponins and flavonoids were present in the brimstone leaf. The screen house experiment on the nematoxic effect of brimstone leaf indicated a nematode-destroying factor, which could be attributed to saponins and flavonoids, Brimstone leaf crude extract (50 and 100% concentrations) and brimstone leaf powder (1 and 2 t ha-1) were used. Experimental pots planted with C. argentea and inoculated with Meloidogyne incognita but not treated with brimstone leaf served as controls. Brimstone leaf significantly increased the number of leaves, plant height, number of branches, fresh leaf and root weight of C. argentea; and also significantly reduced the gall index compared with the control. Brimstone leaf is a promising nematoxic plant that could be recommended for use in root knot nematode endemic areas. ABSTRACT FROM AUTHOR Copyright of Biological Agriculture & Horticulture is the property of AB Academic Publishers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts) 
RESEARCH; PHYTOCHEMICALS; SAPONINS in agriculture; GLYCOSIDES; PLANT nematodes; FLAVONOIDS; TANNINS; STEROLS; ALKALOIDS; SOUTHERN root-knot nematode