August 2023

Current status of molecular tools development for cowpea [Vigna unguiculata (L.) Walp.] improvement

Cowpea [Vigna unguiculata (L.) Walp.] is a popular tropical grain legume which is widely produced and consumed in sub-Saharan Africa (SSA). The grains are rich in dietary protein for human while the haulm is high quality fodder for livestock particularly ruminants. Compared with many other crops cowpea is a laggard in development, evaluation and deployment of different molecular markers for use in genetics and breeding....

Author(s): Abdoul Moumouni Iro Sodo, Christian Fatokun, Bunmi Olasanmi and Ousmane Boukar

August 2023

Antioxidant activities and GC-MS profiling of fractions of methanol extract of Andrographis paniculata

This study was intended to investigate the antioxidant activities of different solvent fractions (hexane (HEX), chloroform (CHL), ethylacetate (ETHYL) and methanol (MET) fractions) of methanol extract of Andrographis paniculata and GC-MS profiling of the most active fraction (MET). The crude methanol extract was fractionated using vacuum liquid chromatography method. Antioxidant activity was evaluated using total...

Author(s): Benjamin Olusola Omiyale and Kayode Olayele Karigidi

August 2023

Genome-wide association analysis identifies resistance loci for bacterial blight in diverse East African rice germplasm

Xanthomonas oryzae pv. oryzae (Xoo), the causal agent of rice bacterial blight disease has been extensively characterized, and loci against different races identified. Many rice cultivars have been developed and utilized to combat the disease, however, due to the rapid evolution of Xoo, several resistances have broken down. The continuous challenge of ever-evolving Xoo and the breakdown of resistance in cultivated rice...

Author(s): Moses Okello, Ochwo S. Mildred, Jimmy Lamo, Geoffrey Onaga, Thomas L. Odong, Geoffrey Tusiime, Phinehas Tukamuhabwa, Settumba B. Mukasa, Peter Wasswa, Jonathan Ogwal and Ricardo Oliva

August 2023

Expression of bioactive compounds in different pepper cultivars (Capsicum annuum L.) in response to different fertilizer treatments

This research aimed at evaluating four cultivars of Capsicum annuum L. with different nutrient sources to ascertain the nutrient source that would improve the soil characteristic and promote the accumulation of carotenoids and flavonoids in peppers. Four nutrient sources: poultry manure, pig manure, goat manure, and nitrogen: phosphorus: potassium (NPK) were used for the study. The experiment was conducted as a 4...

Author(s): Odo V. C., Abu N. E., Igu T. C., Asogwa L. N., Eze C. O., James O.V., Oyediran O.T., Okanwu J. O. and Ojua E. O.

August 2023

Contact activities of Piper guineense (Schum and Thonn) and Eugenia aromaticum (L). (Merril and Perryl) extracts against larvae of hide beetles, Dermestes maculatus (Degger) (Coleoptera: Dermestidae)

Contact activities of Piper guineense (Schum and Thonn) and Eugenia aromaticum (L). (Merril and Perryl) extracts in the control of Dermestes maculatus larvae infesting stored fish (Clarias gariepinus) were investigated under laboratory condition (28±3°C and 65±5% RH). The extracts were tested by application of 2.0 µL each to ten third instars larvae using micro pipette at a concentration of 6.00,...

Author(s): Jatau A., Badamasi M. Z. and Yahaya M. A.