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Effects of age of oil palm in plantation on the growth, competitive interactions and mixture productivity of cassava, maize and pepper in oil palm-based strip intercropping system in the rainforest of Nigeria

London Journal of Research in Science: Natural and Formal
Volume | Issue | Compilation
Authored by Samuel Agele , NA
Classification: NA
Keywords: Solenostemon rotundifolius, accessions, growth, yield, potential.
Language: English

The Hausa potato (Solenostemonrotundifolius(Poir) J.K.Morton) is among the lesser known and under-utilized crop species in Africa which genetic resources are experiencing a gradual erosion. There is scanty information on the agronomic practice, production, utilization and processing of the crop. There is, therefore, the need to intensify research effort aimed to characterize the different accessions cultivated in Nigeria in terms of growth and yield potentials. In this study, ten accessions of the Hausa potato, namely Manchok, NRCRI (1), NRCRI (2), Hong (1), Hong (2), Pankshin,Gembu, Langtang, Bokkos (1) and Bokkos (2), were evaluated for their yield and growth performance in the Jos-Plateau environment in Nigeria. The accessions were laid out in a completely randomized design (CRD) with three replicates. Results showed significant differences amongst the accessions for emergence rate, number of branches per plant, days to flowering, number of flowers per plant, number of tubers per plant, length and girth of tuber, mean tuber weight and dry matter content. Generally, the leaf area index increased with time up to 135 days after planting (135 DAP) and thereafter decreased in all the accessions. The relative growth rate and net assimilation rate increased with the crop age up to 90 DAP and thereafter decreased in all the accessions. The harvest index increased with time up to 180 DAP. Fresh tuber yield was generally low in all the accessions. The study shows that the potential for yield improvement in the Hausa potato exists in the Jos-Plateau of Nigeria.


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