Ebe AI, Ifut OJ, Istifanus EF, Inyang UA, Tom EE, Odoh MC.

• access_time8 May, 2025

  subjectCategory: Agricultural Sciences

• The aim of this study was to evaluate the dry matter yield, mineral contents, antinutrients and proximate composition of cultivated Pennisetum purpureum and Calopogonium mucunoides in the humid tropics. 2 A total of 6000 cm land area was ploughed and demarcated into eighteen plots with 3 treatments and 6 2 replicates, each 300 x 270 cm in a Randomized Complete Block Design (RBCD). Pennisetum purpureum and Calopogonium mucunoides were obtained from the University of Uyo Teaching and Experimental Farm, Use Offot. The plants were treated against ants, termites, stem borers and other insects and planted manually at a spacing of 50 × 40cm and 30×20cm using cuttings with four nodes and each plot had eighty (80) stands respectively. Samples were harvested at intervals of two weeks (week 8, 10 and 12) after sprouting for chemical analysis. Data collected were subjected to analysis of variance using the General linear model procedure of SAS (2001). The study revealed that time of harvest after sprouting significantly influence (P<0.05) calcium, potassium magnesium, iron and nitrogen composition of Pennisetum purpureum. Calcium, potassium and iron were significantly higher (P<0.05) in Pennisetum purpureum harvested at 12 weeks after sprouting than other treatment groups. Calogoponium mucunoides harvested at 8 weeks after sprouting had higher composition of tannin (31.27%), followed by C (28.18%) and C (26.50%). Alkaloid was lower (p<0.05) in C (1.80%) and 2 1 1 higher in C (2.94%). In conclusion, the age of these plants at harvest, influences the proximate 3 composition, mineral composition and anti-nutritional factors.
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