Participatory evaluation of common bean genotypes for adaptation and yield potential in drought-prone areas of Kenya
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Participatory evaluation of common bean genotypes for adaptation and yield potential in drought-prone areas of Kenya

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Presented by Macharia R.D., Karanja R.D. and Nguluu S. at the First Bio-Innovate Regional Scientific Conference, Addis Ababa, Ethiopia, 25-27 February 2013

Presented by Macharia R.D., Karanja R.D. and Nguluu S. at the First Bio-Innovate Regional Scientific Conference, Addis Ababa, Ethiopia, 25-27 February 2013

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  • 1. PARTICIPATORY EVALUATION OF COMMON BEAN GENOTYPES FOR ADAPTATION AND YIELD POTENTIAL IN DROUGHT-PRONE AREAS OF KENYA Macharia R. D; Karanja R. D and Nguluu S.First Bio-Innovate Regional Scientific Conference United Nations Conference Centre (UNCC-ECA) Addis Ababa, Ethiopia, 25-27 February 2013
  • 2. Partners involved Kenya Agricultural Research Institute, Ministry of Agriculture (extension staff in Project sites) Trufoods Limited CLUSA International Smart Logistics Kenya Plant Health Inspectorate Services
  • 3. Rationale Little work has been done to develop improved bean varieties that combine tolerance to abiotic and biotic stresses with canning quality Mexican 142 – ruling varieties despite susceptibility to drought and diseases (Bred and released in1950s) Presence of processing industry in Kenya (Import raw materials from neighboring country by brokers) Change in eating habits; Plant v animal based protein) High demand v supply
  • 4. Rationale cont’d Provide an alternative and relay crop in maize and wheat growing areas Lack of stakeholders’ involvement may contribute to rejection of new cultivars or very low adoption rates Cultivars developed with stakeholders are more likely to be disseminated, adopted faster and have higher impact than those developed in formal systems
  • 5. ObjectiveEvaluate the common bean genotypes foradaptation and yield performance indrought-prone environments of Kenya
  • 6. Breeding Beans for Processing Industry• Initial working collection of 250 genotypes constituted• Representative of major market class of Andean and Mesoamerican gene pools.• Evaluated at Kiboko under stress and no stress conditions• 111 lines were selected for participatory on-farm across AEZs evaluation and further shoot traits related to drought resistance.• Evaluated in five on-farm sites (Itoloni, ngongoni, Ntulele, Olepolos, and moidabi) and two on-station sites (Kiboko and Katumani 6
  • 7. Summary of Advanced Lines and Yield potential on-stationSeed type Average Yield (Kg/ha) • New Drought tolerant lines were Non Stress Rainfed better yielding stress than the checks.Red Mottled 20 1689.6 988.9 936.2 • Most genotypes give higher yields than the nationalRed Kidney 18 2169.8 892.8 957.2 average (>500Small and 20 2038.1 772.4 1011.3 kg/ha) underMedium Reds stress and rainfed conditions.Small white 22 2265.1 1107.9 1437.6Mixed Colours 21 2590.5 1292.2 1263.5
  • 8. On-Farm Average Yield across sites in 2012 LRSeed type Average Yield (Kg/ha) • With properRed Mottled 19 1163.9 choice ofRed Kidney 17 1028.2 good linesSmall and Medium 9 1321.1 from the newReds nurseriesSmall white 22 1537.5 yieldMixed Colours 20 1363.5 advantage ofKAT x 69* 715.3 <10% haveKAT x 56* 650.2 been realized.KAT B9* 583.6KAT B1* 432.5
  • 9. Participatory selection for drought tolerance •Gender disaggregated •Ribbon method used to select the preferred and non- preferred lines. •Probing to understand the criteria for and against
  • 10. Participatory Variety Selection Cont’d• Key traits for farmers:• Yield• Drought tolerance• Earliness• Uniformity in Maturity• Growth habit• Non shattering
  • 11. Participatory Variety Selection Cont,dAfter three cycles of selection Site Male Female Total12 lines (5 small whites, 4 red Olepolos 18 13 31mottled, 1 red kidney and 2small reds) have been selected Ntulele 63 14 77 Ngiito 14 9 23Planted together with the fourcommercial checks for AYT Mai Mahiu 9 4 13 Nguutani 18 9 27With the results from on-station AYT at least 3 lines Kambi ya 23 20 43combing high yield, drought Mawetolerance and industrial canningquality will be submitted for Total 145 69 214National Performance Trial inthe coming season
  • 12. On-going activitiesAdvanced yield trials.Elite lines multiplication forindustrial canning quality testing atTrufoods Ltd.
  • 13. AcknowledgementsGovernment of KenyaBioInnovate/SIDATRUFOODS LTDCLUSA InternationalMinistry of AgricultureFarmer Groups