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Adaptability and stability of sweetpotato varieties for low-input systems in Uganda

Sixteen of sweet potato varieties were evaluated for fresh storage roots yield in 20 trials during 2000-2001 for three seasons in four locations in Uganda.Of the 16 varieties, 11 were developed by farmers and five by central breeding programme. The behaviour of the varieties was quantified in terms of wide adaptation (genotypic mean across trials), specific adaptation (genotypic prediction for specific location) and stability (Shukla stability variance). The results illustrate the potential that farmer varieties can have in the improvement of sweetpotato in Uganda and other regions where high diversity of sweetpotato landraces exists. Note: this article is forbidden for a commercial purpose and it is under a copy right of Blackwell, Verlag, Berlin.

Key Document Information

Authors: Putri Ernawati Abidin, F.A. van Eeuwijk, P. Stam, P.C. Struik, M. Malosetti, B. Odongo, E.E. Carey, Robert Mwanga, Hermann Ouedraogo

Subject: Farmer varieties in Uganda and their GxE

Publication Date: April 14, 2005

Publisher: Blackwell Verlag, Berlin

Format: pdf

Language: English

Rights: @2005 Blackwell, Verlag, Berlin

Keywords: Farmer selection, genotype-by-environment interaction, Ipomoea batatas, specific adaptation, stability, wide adaptation

HOW TO CITE

Abidin, P.E., van Eeuwijk, F.A., Stam, P., Sturik, P.C., Malosetti, M., Mwanga, R.O.M., Odongo, B., Hermann, M., Carey, E.E. (2005) Adaptability and stability of sweetpotato varieties for low-input systems in Uganda. Plant Breed. 124:491–497.

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