This study evaluated the effect of media on the germination and seedling performance of Irvingia wombolu. The experiment was conducted at the Teaching and Research Farm of the Delta State University, Asaba Campus, Nigeria. The results revealed a lack of media effect, (P > 0.05) on rooting percentage with river sand recording 21.8%, Sawdust (18.1%), clayey soil (17.6%) and top soil (17.6%). A pronounced effect of media on leaf area was observed with river sand and topsoil higher (P = 0.05) than the rest treatments. Plant height, the number of leaves and dry weight displayed no treatment effect.
This study evaluated the effect of seed fermentation processing on the germination and seedling performance of Irvingia wombolu. The experiment was conducted at the Teaching and Research Farm of the Delta State University, Asaba Campus, Nigeria. The results revealed a highly significant (P = 0.001) effect of seed fermentation on germination percentage, plant height, number of leaves, leaf area and dry weight. Germination percentage ranged from 0% to 50% in 2-4 weeks to 0 week fermentation. Fruit fermentation is not recommended and Irvingia wombolu seeds should mechanical depulped and sown immediately they are collected.
The study evaluated litter production capacity of three forest plantation foliage litters as potential mineralization sources for the growth of Irvingiaga bonensis. Litter production capacity of Bamboo, Teak and Gmelina forest plantations was monitored for 70 days before Irvingia seeds were sown in open germination beds containing litters soil samples for vegetative development assessment. Data collected were analyzed using ANOVA and significant means separated with the DMRT. Results showed the mean litter production as Teak (3.65t/ha) >Gmelina (3.60t/ha)> Bamboo (2.67t/ha) and germination percentage was highest for soils of Bamboo plantation. The carbon nitrogen ratio was Gmelina (2.60)> Teak (2.24)> Bamboo (1.90) and bulk density as Gmelina (1.59 g/cm 3 ) > Teak (1.47 g/cm 3 ) > Bamboo (1.45 g/cm 3 ). The plant height, leaf area and leaf to stem ratio were Bamboo >Gmelina> Teak while the collar diameter was highest in Teak forest plantation soils. The study showed soils under the Bamboo forest as the best growth media for I. gabonensis, and therefore implied soils under the Bamboo forest as potential natural nursery and forest regeneration materials, especially in the current global deforestation menace that have adversely limited the preponderance of silvical floor litters.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.