Vol. 99 No. 1

Research Papers

• Effects of tillage in combination with spacing on yield and proximate composition of sweet potato (Ipomoea batatas) grown in an abandoned paddy field

  Suchada Boonlertnirun, Laongsri Sirikesorn, Arunee Kongsorn, Kitti Boonlertnirun

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• Characterisation, classification and suitability assessment of soils formed in granite and gneiss in humid area of southwestern Nigeria for cacao (Theobroma cacao) production

  Julius Olayinka Ojetade, Hannah Olufemi Olasoji, Sikiru Adekoya Muda, Alani Adeagbo Amusan

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• Effects of some chemical and biological insecticides on beet armyworm (Spodoptera exigua Hubner (Lepidoptera: Noctuidae)) and natural enemies in sugar beet fields

  Mah sa Abdollahzadeh Bavani, Shahram Aramideh, Abbas Hosseinzadeh

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• Escherichia coli contamination of lettuce (Lactuca sativa) sold in Trinidad and Tobago

  Alanis Boodram, Lydia Hutchinson, Caroline Sam, Elisheba Walcott, Anisa Yusuf, Sharianne Suepaul, Anil K. Persad

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• Vernonia amygdalina (bitter leaf) as a phytogenic additive in the diet of West African Dwarf goats

  Kafayat Adebayo, Victoria Ojo, Ronke Aderinboye, Ibrahim Ajadi, Kafilat Hammed

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• Carbonic anhydrase polymorphism in West African Dwarf goat populations of western Nigeria

  Olukoya Kolawole Awobajo, Osamede H. Osaiyuwu, M. O. Alademehin

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• Sexual development in Tazegzawt male lambs: body, testicular and penile growth before pre-puberty

  Moulla Farid, El bouyahiaoui Rachid, Belkheir Boussad, Hidra Hayette, Iguer-ouada Mokrane

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• Agricultural production inefficiency in Nigeria: the contribution of farming households’ ill-health disability

  Shakirat Ibrahim, Chittur Srinivasan, Nikos Georgantzis

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