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Full Length Research Paper
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Performance
of climber common bean (Phaseolus vulgaris L.) lines
under Researcher Designed Farmer Managed (RDFM) system in
three bean agro-ecological zones of Malawi
V. M. Mwale1*,
J. M. Bokosi1,
C. M.
Masangano1,
M. B.
Kwapata1,
V. H.
Kabambe1,
and C.
Miles2
1University
of Malawi, Bunda College of Agriculture, P. O. Box 219,
Lilongwe, Malawi.
2Department
of Horticulture and Landscape Architecture, Washington State
University, Vancouver Research and Extension Unit,
1919 NE, 78 Street, Vancouver WA 98665,
USA.
*Corresponding author. E-mail:
incentmgoli@bunda.unima.mw. Tel: (265) 88 345 076; (265)
99 659 606; (265) 1 277 361.
Accepted 17 April, 2009 |
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Abstract |
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An on-farm study was carried out in 2003-2004 and 2004-2005
growing seasons under rain-fed condition in five sites
namely Thondwe and Matapwata in Zomba and Thyolo districts
respectively, Chipuka in Ntchisi district, Ntchenachena and
Ngong’a in Rumphi district representing three bean
agro-ecological zones of Malawi. Seven climber common bean
entries; CAB 19, RWV 1046, BCMV B4, AND 659, RWV 1042-2-3,
5P/5 and DC 86-244 were evaluated for their performance and
stability across sites and two seasons under Researcher
Designed Farmer Managed (RDFM) system.
Entries DC 86-244, AND 659 and BCMV B4 were early maturing
in most sites of the trial. DC 86 244 and AND 659 were also
high yielding and had larger seed sizes compared to other
entries. RWV 1046 and RVW 1042-2-3 were also high yielding
though had smaller seed sizes. Stability analysis identified
entries CAB 19 and DC 86 244 as stable entries across sites
and seasons. Among environments, Ng’onga, Chipuka and
Thondwe were high yielding. Ntchenachena was more stable but
lower yielding compared to other sites. Matapwata was highly
unreliable as heavy rains followed by dry spells
characterised the site which resulted in loss of all bean
entries in 2004-2005 growing season.
Key words:
Agro-ecological zones, AMMI, on-farm, Phaseolus vulgaris
L., Researcher Designed Farmer Managed (RDFM), seed
size, stability. |
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