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 Academic Research Journal of Agricultural Science and Research
 

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Academic Research Journal of Agricultural Science and Research 

Vol. 3(7), pp. 201-206. July, 2015.

ISSN: 2360-7874 

 DOI: 10.14662/ARJASR2015.041

 

Full Length Research

Evaluation of yam varieties for reaction to plant parasitic nematodes infestation in three agro-ecologies of Ghana

 

Kingsley Osei*, Yaw Danso, Emmanuel Otoo, Joseph Adomako, John Sackey-Asante, and Bismark Abugri

 

CSIR-Crops Research Institute, Box 3785, Kumasi, Ghana.

*Corresponding author’s email: oseikingsley4@gmail.com

 

Accepted 11 June 2015

Abstract

 

Three popular yam varieties; Pona, Dente and Afebetua were evaluated for their reaction to plant parasitic nematodes infestation in three districts (Atebubu, Kintampo and Wenchi) of Ghana where yam is intensively cultivated. Plant population/12 m2 plot, nematode population/200 cm3 rhizosphere soil, nematode population/5g tuber peels, tuber gall index and yield were analyzed using the mixed model (REML) approach in GenStat. Plant establishment of Pona at Wenchi was 63% higher than at Atebubu. Three nematodes; Meloidogyne spp., Pratylenchus coffeae and Scutellonema bradys were isolated from rhizosphere soils across the locations.  Meloidogyne spp. population on Afebetua was 41 and 61% higher than on Dente at Kintampo and Wenchi respectively. Similarly, 64 and 89% more Pratylenchus coffeae were found on Afebetua than on Dente at Atebubu and Wenchi, respectively. Significantly higher (P < 0.05) populations of Meloidogyne spp. juveniles were extracted from tuber peels in Pona, Dente and Afebetua at Wenchi than at Atebubu. Afebetua was the highest yielding variety. It out yielded Pona by (87, 45 and 71)% and Dente by (66, 81 and 62)% at Atebubu, Kintampo and Wenchi, respectively.

 

Keywords: Dioscorea rotundata, Meloidogyne spp., Pratylenchus coffeae, Scutellonema bradys


 

 

How to cite this article: Osei K, Danso Y, Otoo E, Adomako J, Sackey-Asante J, Abugri B (2015). Evaluation of yam varieties for reaction to plant parasitic nematodes infestation in three agro-ecologies of Ghana. Acad. Res. J. Agri. Sci. Res. 3(7):201-206. 

 

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Current Issue: July 2015

 

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