Efficacy of Aqueous Leaf Extracts of o Negro Coffee (Cassia Cassia occidentalis) occidentalis and Lemon Grass (Cymbopogon Cymbopogon citratus) citratus in the Management of f Nematode Pests of Okra (Abelmoschus Abelmoschus esculentus L. Moench)
Keywords:
Nematodes, Phytochemical screening, Infra-red spectrum, Secondary metabolitesAbstract
A two-year rain-fed field trials to evaluate the efficacy of aqueous leaf extracts of Cassia occidentalis and Cymbopogon citratus at different levels in the management of nematode pests of okra was conducted. The levels of treatments used were 25, 50, 75 and 100 %, where 0% served as control. The experimental design was a randomized complete block design (RCBD). Effects of treatments on growth, yield, soil nematode population, root weight and root gall indices were determined. Phytochemical screening and infra-red spectrum to determine the secondary metabolites in the leaf extracts were also carried out. It was observed that the treated plants especially those that received 50% level and above performed significantly better (p=0.05) than the control with respect to the measured parameters. The phytochemical result revealed the presence of tannin (7.4%), crude alkaloids (2.5%), saponin (0%) and crude oxalates (42.28 mg/g) in cassia while lemon grass contained tannin (4.5%), crude alkaloids (0.52%,), saponin (1.76%) and oxalates (0%). The infra-red spectrum revealed that the two plant extracts contained very strong and broad absorption bands ~3400-1cm region, assignable to ~NH stretching mode probably of alkaloid family. The medium absorption bands were due to ~CH bands which are common in natural products. The medium absorption bands are also strong indicators of other compounds in the leaf extracts. The use of botanically derived crude leaf extracts of cassia at 50% and lemon grass at 75% in the management of nematode pests of okra will therefore be of economic benefit, ensuring food security.
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Abolusoro, S.A., Abolusoro, P.F., Mathew, F.O., Izuogu, N.B. (2013). Effects of Organic and Inorganic Manures on the Growth Attribute of Root-Knot Nematode (Meloidogyne incognita) infected Ethiopian Egg Plant (Solanum aethiopicum). World Journal of Agricultural Research 1(6): 104-107.
Adekunle,O.K. and Fawole, B. (2003): Comparison of Effects of Extracts of Siam weed, Neem and Carbofuran on Generation time and Reproduction of Meloidogyne incognita Race 2 on Tomato. Environment and Ecology 21(3): 720-726.
Agu, C.M. and Ogbuji, R.O. (2001). Effect of soil nature on soybean inherent resistance status to root-knot nematode
(Meloidogyne javanica) International Journal o Agriculture and Rural Development 2: 35-42.
Diouf, M. (1997). Research on African vegetables at the Horticultural Development Center (CDH), Senegal. Pages 39-45. In: Guarino, I. (ed.). Traditional African vegetables. Proceedings of the IPGRI International workshop on genetic resources of traditional vegetables in Africa: Conservation and use held at ICRAF, Nairobi, Kenya, 29
– 31 August 1995, International Plant Genetic Resources Institute (IPGRI), Rome, Italy
Eapen, S.J., Beena, B. and Ramana, K.V. (2005). Tropical soil microflora of spicebased cropping systems as potential antagonists of root-knot nematodes. Journal of Invertebrate Pathology 88: 218-225.
Enopka, E.N. Okwujiako, I.A. and Madunagu, B.E. (1996). Control of root – knot nematodes in tomato with Furadan. Global Journal of Pure and Applied Sciences 2(2): 131- 136.
Fatoki, O.K. and Fawole, B. (2000). Identification of nematicidal ingredients from neem leaves, Siam weed leaves and roots. African Journal of Plant Protection 10: 33-38.
Khan, Z., JairajpurI, M.S., Khan, M. and Fauzia, M. (1998). Seed soaking treatment in culture filtrate of a blue- green algae, Microcolues vaginatus, for the management ofMeloidogyne incognita on okra. International Journal of Nematology 8(1): 40-42.
Khan, M.R. and Khan, M.W. (1994): Single and Interactive effects of root knot nematode and coal-smoke on okra. New Phytologist 126: 337-342.
Izuogu, N.B., Oyedunmade, E.E.A., Olabiyi, T.I., Oluwatayo,
J.I. and Abolusoro, S.A. (2011). Control of nematode pests of okra (Abelmoschus escuulentum L. Moench) using two plant materials and carbofuran. Journal of Horticultural Science 16:33-40.
Izuogu, N.B., Oyedunmade, E.E.A. and Babatola J.O. (2010). Screenhouse Assessment of reaction of Fluted Pumpkin, Telfairia occidentalis Hook F. to Root-Knot Nematode Meloidogyne incognita. Journal of Agricultural Science 2 (3): 169-173.
Izuogu, N.B., Oyedunmade, E.E.A.and Usman, A.M. (2012). Toxicity of aqueous and powdered sparrow grass, Asparagus Africanus to Meloidogyne incognita on egg plant. Journal of Organic Agricultural Research and Development 5: 36-50.
Olabiyi, T.I., Atungwu, J.J., Izuogu, N.B., Akintola, J. and Abolusoro, S.A. (2013). Efficacy of Neem Compost on Root Knot Nematode Pest of Lagos Spinach, Celosia argentia. Achives of Phytopathology and Plant Protection 46(18): 2253-2258.
Sikora, R. A. and Fernandez, E. (2005). Nematode parasites of vegetables. In: Luc, M., Sikora, R.A. and Bridge, J. (Eds). Plant parasitic nematodes in subtropical and tropical agriculture. 2nd edition, CABI publishing, pp. 319- 392.
Singh, R.K., Singh, R.R. and Pandey, R.C. (1993). Screening of okra, Abelmoschus esculentus varieties/ cultivars against root-knot nematode Meloidogyne incognita. Current Nematology 4(2): 229-232.
Yakubu, L.B. and Izuogu, N.B. (2013). Comparative Evaluation of Some Botanicals and Carbofuran in the Control of Root-Knot Nematode, Meloidogyne spp. on Cowpea (Vigna unguiculata). Journal of Sciences and Multidisciplinary Research 5(2):105-115.
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