N. D. Okena

Phenotypic Diversity and Selection Potential in Mung Bean (Vigna radiata L.) Based on Agro Morphological Traits

N. D. Okena, J. D. Obeten, D. E. Akam, E. E. Akiba & A. E. Okon · Asian Journal of Biology · 2026

Background and Aim: Mung bean (Vigna radiata L.) is an important short-duration grain legume valued for its protein content and contribution to sustainable agriculture via biological nitrogen fixation. However, its productivity is constrained by narrow genetic variability. This s...

Open access Research Article 10.9734/ajob/2026/v22i5658

Growth Response of Vernonia hymenolepis (Sweet Bitter Leaf) Seedlings Inoculated with Arbuscular Mycorrhizal Fungi (AMF) under Fusarium Root Rot Stress in Calabar, Nigeria

J. D. Obeten, D. E. Akam, N. D. Okena, E. E. Akiba & S. E. Udo · Asian Journal of Research in Crop Science · 2026

Background: Vernonia hymenolepis is an underutilized African leafy vegetable with important nutritional and economic value, but its productivity is severely threatened by soil-borne pathogens such as Fusarium oxysporum, necessitating sustainable management approaches such as the...

Open access Research Article 10.9734/ajrcs/2026/v11i2436

Growth Performance and Disease Suppression in Pepper (Capsicum annuum L.) Treated with Trichoderma viride under Fusarium oxysporum and CMV Stress

D. E. Akam, E. E. Ekpiken, J. D. Obeten, N. D. Okena, E. E. Akiba & S. E. Udo · Asian Journal of Research in Crop Science · 2026

Background: Capsicum annuum (pepper) is an economically important crop whose production is significantly reduced by Fusarium wilt and Cucumber mosaic virus, prompting interest in sustainable control strategies such as the biocontrol agent Trichoderma viride to improve growth and...

Open access Research Article 10.9734/ajrcs/2026/v11i2437