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Development of drought tolerance germplasm for improved cassava productivity in marginal agro-ecology of Nigeria Grand Challenge # 9: Create a Nutrient Rich Staple Plant Okogbenin E, Akinbo O, Egesi C, Ewa F, Ekaette E, Adebija C Accelerating the Green Revolution in Nigeria. Overview of PASS Projects in Nigeria, Kano, 26-28 September 2011
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Outline Brief Background of NRCRI, Umudike Highlights of the main achievements Current collaborators prospective Collaboration with other PASS/AGRA projects Key Challenges Acknowledgement
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National Root Crops Research Institute (NRCRI), Umudike, Nigeria One of the 17 Agricultural Research Institutes in Nigeria It became known as National Root Crops Research Institute in 1973 Research Institutes under the Agricultural Research Council of Nigeria (ARCN)
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Cassava Map of Nigeria Experimental site Target agro-ecology
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Evaluation of Latin American germplasm for drought tolerance Evaluation of NRCRI/IITA germplasm for drought tolerance Evaluation of protein germplasm introduction from Latin America Highlights of the main achievements
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Screening of drought tolerance elite materials from Latin America introduced through tissue culture technology Screening of drought tolerance materials from Latin America using botanical seeds
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Yield of over 28 ton per ha for 2009/2010
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Tolerant Susceptible Potential
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Tolerant Susceptible Potential
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Local as check for yield Second year yield in pictures
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Local check for diseases
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MinimumMaximum Standard Deviation Dankata (Local Check) FRY(t/ha)9.6948.807.209.88 DRY(t/ha)3.2226.073.843.22 HI (0-1)0.240.590.080.38 DMC(%)19.6837.343.8130.62 CMD (1-5)0.751.750.233.25 CBB (1-5)1.003.000.531.00 CGM (1-5)0.501.160.190.50 Simple statistics of characters of agronomic and diseases from screening of drought materials Kano, 2011
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Dankata (Local Check) Potential
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Dankata (Local Check) Potential
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Yield results of 2010/2011 (protein field)
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Simple statistics of characters of agronomic and diseases from screening of Protein materials Abuja, 2011 MinMaxAverStandard Dev FRY (ton/ha)8.0062.5030.8613.31 DRY (ton/ha)2.4835.6512.696.09 DMC (%)4.9745.3325.235.39 RtCol (1-7)1.007.003.561.21 CMD (1-5)0.463.001.250.49 CBB (1-5)1.004.002.101.02 CAD (1-5)0.213.001.030.28
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Frequency distribution of the mean protein content from the screened Protein materials in Abuja, 2011
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yield results of 2010/2011 (seedlings)
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Simple statistics of characters of agronomic and diseases from seedling stage of drought materials from Latin America MinMaxAverage Standard Dev Plt Type (1-5)2.005.003.240.84 CMD (1-5)1.005.002.241.08 CBB (1-5)2.004.002.600.63 CAD (1-5)1.004.002.090.62 DMC (%)19.5347.0531.915.94 HI (0-1)0.130.920.540.19 FRY (ton/ha)4.0066.0021.5015.24 DRY (ton/ha)1.0819.076.844.75 Starch (%)1.7038.3518.197.91
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Selection Index Based on Fresh root yield, Dry root yield, Dry matter content, Vigor, Architecture, Harvest Index, Cassava mosaic disease, Cassava bacterial blight, cassava anthracnose disease SI = +( FRY*10 )+(DRY*10)+(DMC*8)+(HI*8)-(Arch*7)- (vig*7)-(CMD*8)-(CBB*7)-(CAD*4)
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selection index for 2009 – 2011 for Latin America germplasm Potentials Local check
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Recommendation for Nationally Co- ordinated Research Project (NCRP) 2012 AR 9-5 CW 525-1
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Establishment of the selected germplasm with the local (Dankata and Danwaru as a check) Establishment picture of the current field in Kano
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Establishment of the drought tolerant germplasm in Kano
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Establishment of the protein/beta carotene/clonal drought trials in Kano
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Establishment of the protein/beta carotene/ trials in Abuja
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Breeding approach ♀ ♂ Segregating population from the hybridization (Female parent) (Male parent)
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Seedling nursery for mapping population crosses for drought complementary traits
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Weather station under construction for accurate data collection onsite Irrigation facilities under construction for field water supply during field establishment onsite
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Nominated genotypes for release in 2011 CR 36 – 5 NR 03/0155 NR 03/0211
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Monitoring of Cassava On-farm Trials for release Oron, Akwa Ibom State
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Monitoring of Cassava On-farm Trials for release Odukpani, Cross River State
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Monitoring of Cassava On-farm Trials for release Oron, Akwa Ibom State Enugu, Enugu State
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Federal Ministry of Agriculture and Natural Resources on green revolution programme Federal Ministry of commerce and Industries New market driven objective motivated by government policy Value chain that allow development from production through processing to cassava based products Opening of market outlet to final end-users Current & prospective Collaboration with other PASS/AGRA projects
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Facilities for screening in dry ecologies On farm trials is capital intensive Multiplication of stem cuttings takes time Distribution of stem cuttings is expensive (bulkiness) Networking/meetings/discussing with farmers is cost consuming ADP workers are not fully functional Key challenges
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Acknowledgements AGRA GCP NRCRI, Umudike IAR, Zaria
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Thank you for listening
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