Article Sidebar
Article Details
NAJ supports free online communication and exchange of knowledge as the most effective way of ensuring that the fruits of research and development practice are made widely available. It is therefore committed to open access, which, for authors, enables the widest possible dissemination of their findings and, for readers, increases their ability to discover pertinent information. The Journal adopts and uses the CC: BY license and is open access. This license lets others distribute, remix, adapt, and build upon your work, even commercially, as long as they credit you for the original creation. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the Journal’s published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work. Copyright for articles published in this Journal is retained by the Journal.
Main Article Content
Effect of root-knot-nematode (Meloidogyne incognita) on growth and (Solenostemon rotundifolius Poir)
Abstract
Investigation was carried out to determine the susceptibility of Hausa Potato (Solenostemon rotundifolius Poir) to toot-knot nematode (Meloidogyne incognita). Six population levels of 0, 1000, 2000, 3000, 4000 and 5000 replicated five times were inoculated to each Hausa potato seedling. At a nematode population of zero (0) the highest number of clean tubers were obtained and no nematode symptoms were observed whereas the leas number of tubers were obtained at a nematode population of 5000 eggs which also had the highest nematode incidence symptomized by heavy galling on the roots and on the tubers causing them to appear unattractive. The number of tubers significantly (p = 0.05) decreased as the nematode population increased. Higher soil nematode population were also recovered from plots inoculated with 5000 eggs. Mean tuber, fresh and dry shoot weights decreased as nematode population also increased. This therefore implies that Hausa potato (Solenostemon rotundifolius) may not be successfully cultivated in fields highly infested with Meloidogyne spp, nor used in crop rotation with other crops susceptible to root-knot nematode.
Keywords: Rootknot nematode Growth,Yield - Hausa potato
