Final version of Tropical Legumes II Project Report for Phase 1 - icrisat

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dry savanna regions, where the bulk of cowpea is produced, is generally erratic, especially early in the cropping season. In certain years farmers sow their cowpea seed in fields a number of times because of irregular rainfall early in the cropping season which may cause death of emerged seedlings especially if the interval between two rains is long. The cowpea plants may also be subjected to terminal drought due to short raining season which is becoming more frequent in the dry areas of SSA. Irrigation facilities are very limited in this region and where they are available high value crops such as vegetables are given priority over cowpea. Hence cowpea production depends almost entirely on rainfall. Thus the development and deployment of more drought tolerant varieties would help farmers obtain better and more stable grain yield from their cowpea plots. In order to develop more drought tolerant varieties it is necessary to identify cowpea lines with enhanced levels of drought tolerance. These would serve as parents for crossing to lines which have already been accepted by farmers. The thrust of this project is to enhance cowpea productivity in the dry savanna regions of SSA through genetic improvement. Targets achieved in this project: • Current cowpea breeding lines have been evaluated for their drought tolerance and the more drought tolerant lines were selected with farmers’ involvement. Seeds of these lines were multiplied and made available to farmers to grow and compare with their own varieties. The selected varieties outperformed farmers’ own varieties at all locations. • More than 200 kg seed of selected lines with enhanced drought tolerance was produced and used in trials in at least 30 communities. • Over 1,000 germplasm lines were evaluated in the field for their drought tolerance. • About 20 lines with enhanced drought tolerance were identified and crossed to existing breeding lines with farmers and consumers preferred traits. • Over 200 populations segregating for drought tolerance, and resistance to Striga have been generated. These are still being advanced. • DNA markers (SNPs) associated with drought tolerance, bacterial blight and Striga resistance identified in the TL I project at UC Riverside were validated at IITA. • A report on assessment of gaps in collaborating scientists, extension agents and farmers’ skills was produced. • Early adoption studies of improved cowpea varieties were carried out in Nigeria. • Support for upgrading drought screening sites was provided in each country based on their needs. • Five national programs are now active in breeding cowpea for drought tolerance. • One stakeholders’ workshop and two community workshops were held each year in each country to plan activities and receive feedback from stakeholders. • One thousand eight hundred and ninety two (1,892) farmers participated in participatory variety selection (PVS) in identifying drought tolerant lines possessing desirable traits in five countries. • Seven graduate students have been or are being trained at (6) MSc and (1) PhD levels in plant breeding. Activities There were three main activities undertaken in cowpea research and development during this phase of the project, namely: a) Testing existing cowpea varieties and lines for their drought tolerance b) Creating segregating populations for drought tolerance and attendant traits and c) Strengthening capacity of NARS scientists Testing existing cowpea varieties and lines for their drought tolerance Several cowpea breeding lines on the shelves at NARS and IITA breeding nurseries were selected and tested for their drought tolerance on-station. Those with enhanced levels of drought tolerance were further selected for testing on farmers’ fields in the five target countries. 92 Engaging Smallholder Farmers | Tropical Legumes II Project
Cowpea lines evaluated for drought in farmers’ fields Table 5-2 shows the number of elite cowpea lines tested in the different countries. There were however 16 common elite lines (IT00K-1263, IT99K-1122, IT96D-610, IT98K-491-4, IT89KD-288, IT98K-311-8-2, IT98K-166-4, IT99K-216-24-2, IT99K-7-21-2-2, IT98K-412-13, IT98K-390-2, IT98K-628, IT97K-819-118, IT99-529-1, IT97K-1069-6 and IT98K-128-3) tested in all countries. These 16 lines were from the early maturing, dual purpose, Striga-resistant and medium maturing breeding nurseries at IITA. Table 5-2: Number of improved cowpea breeding lines tested across countries In country developed breeding lines IITA developed lines Total Mali - IER 5 43 48 Mozambique - IITA & IIAM 3 16 19 Niger - INRAN 11 25 36 Nigeria - IAR 20 48 68 Tanzania - ARI 4 16 20 IITA - Kano - 78 1 78 The listed 16 breeding lines were tested in Mozambique and Tanzania in the cropping season of 2007- 2008. The protocol for carrying out the trials was agreed at the project’s launching meeting in Arusha and fine tuned during annual sub-regional meetings held each year. Protocol for evaluating the breeding lines under terminal drought (agreed on by all) • Scientist managed • Farmers to visit sites in order to select preferred lines by them • Large plot sizes 20 x 20 meters • Two dates of planting to enable plants in the second planting experience terminal drought • Plant protection practices as done on-station • Spacing between and within rows • Land preparation • Data to be collected • Names/identities of existing lines to be included in each country After three years of evaluations involving farmers’ participation, the cowpea line IT97K-499-35 was selected by farmers in Nigeria and Mali for its drought tolerance and Striga resistance in Mali. Cowpea line IT97K-499-38 was selected in Niger for its good performance. In East Africa, the cowpea lines IT00K-1263 and IT99K-1122 were selected by farmers in Tanzania for their drought tolerance and earliness (IT99K-1122) while IT00K-1263 was the preferred line by farmers in Mozambique. Table 5-3: Cowpea breeding lines selected through PVS Mali IT93K-876-30; Kougnekou; Mbrawa; IT97K-499-35 Niger IT96D-610;IT97K-499-35; IT97K-499-38; IT99K-573-1-1; Et DD 07 Nigeria Mozambique Tanzania IT96D-610; IAR-06-1050; IT97K-499-35; IAR-00-1074 (Borno); IT99K-7-21-2-2; IT99K-216-24-2 (Kano) IT18; IT00K-1263; IT97K-1089-6; IT16, IT98K-390-2, IT98K-131-2, IT98K-128-3 IT00K-1263; IT99K-1122; Vuli-1; Vuli-2; Fahari; Tumaini Progress of Phase 1 93
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Tropical Legumes II Project TROPICA
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TROPICAL LEGUMES II Tropical Legume
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Seed Production and Delivery System
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Seed production and delivery system
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NARES NASFAM NASSPA NPT NSC NSO NSS
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TL II was implemented in 10 target
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country governments in agricultural
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Table 1-2: continued Variety code (
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Table 1-3: Seed production and deli
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As stated earlier in this chapter,
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Table 1-5: Graduate degree students
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Ndjeunga J, Ibro A, Cisse Y, Ben Ah
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Project background Groundnut is one
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Table 2-2: Performance of ICGV 0035
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Table 2-6: Performance of ICGV 9111
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Table 2-11: Results of 255 paired c
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Table 2-16: Groundnut seed of vario
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Infrastructure facilities For effic
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Project sites Tamil Nadu The presen
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In Karnataka, the PDKV model was pr
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Training course A total of four tra
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Background The yield of groundnut i
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Table 3-2: Groundnut production tre
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In order of importance, the largest
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Table 3-5: Results of pair-wise com
Page 52 and 53: Finally, the variety choices are co
Page 54 and 55: hybridization techniques, design of
Page 56 and 57: Figure 3-2: The Malawi model of the
Page 58 and 59: Tanzania TL II has contributed to t
Page 60 and 61: Annex 3-2: Performance of Virginia
Page 62 and 63: Annex 3-4: Regional elite groundnut
Page 64 and 65: 54 Engaging Smallholder Farmers | T
Page 66 and 67: The European Union still remains th
Page 68 and 69: Table 4-2: Proportion of households
Page 70 and 71: Table 4-4: Amount requested, amount
Page 72 and 73: Table 4-6. Comparison of groundnut
Page 74 and 75: The use of other inputs (credit, in
Page 76 and 77: A PVS evaluation was launched in pi
Page 78 and 79: Table 4-10: Locations and contact f
Page 80 and 81: Table 4-11: Mean pod yield (kg per
Page 82 and 83: 99511 (Table 4-12). Most important
Page 84 and 85: Table 4-15: Evaluation of groundnut
Page 86 and 87: A 10-day intensive training worksho
Page 88 and 89: Seed production of all classes A to
Page 90 and 91: Testing seed marketing strategies A
Page 92 and 93: Area Global trends in area under co
Page 94 and 95: Figure 5-3 shows that Nigeria made
Page 96 and 97: much greater deficits. Under this s
Page 98 and 99: and other inputs. • Popular varie
Page 100 and 101: Mozambique Soybean seed multiplicat
Page 104 and 105: Number of demonstration plots in ea
Page 106 and 107: Mozambique Many farmers have shown
Page 108 and 109: Table 5-7: Number of days to flower
Page 110 and 111: most efficient and IT99K-7-21-2-2 w
Page 112 and 113: Table 5-11: Ten SNPs converted and
Page 114 and 115: Strengthening capacity of national
Page 116 and 117: Infrastructure development at NARS
Page 118 and 119: in Mali, 107.3 MT in Mozambique, an
Page 120 and 121: produced over the first phase of th
Page 122 and 123: Lessons learned TL II cowpea seed s
Page 124 and 125: Phase I Social Sciences research in
Page 126 and 127: The consequences are that the impro
Page 128 and 129: about half of area share of land al
Page 130 and 131: Figure 6-3: Average area (ha) per h
Page 132 and 133: single lingering bottleneck on whic
Page 134 and 135: In Kenya, the small seed pack appro
Page 136 and 137: Summary, process gains and people r
Page 138 and 139: Fast-Tracking and Technology Genera
Page 140 and 141: Figure 6-6: Distribution of PVS sit
Page 142 and 143: Table 6-12: Yields of fast track bu
Page 144 and 145: Table 6-15: Farmer evaluation of in
Page 146 and 147: While the fast track entries were r
Page 148 and 149: Technology generation Mechanistic s
Page 150 and 151: 60 50 Rainfall Pan evaporation Maxi
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16, and the advantage of some ALB l
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Number of degree training students
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Number of NARS technicians trained
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Rain-out shelter in CIAT-Colombia T
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Impact assessment and enhancement P
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Annex 6-2: TL IIEthiopia: decentral
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154 Engaging Smallholder Farmers |
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farmers for enhancing their awarene
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• Designing, testing and implemen
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Andhra Pradesh The overall sample s
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Prakasam district: Crops grown in P
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Constraints in adoption of chickpea
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Cost-benefit analysis for chickpea
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Identification of farmer-and-market
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Table 7-6: Breeder Seed of differen
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Capacity building Knowledge empower
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Table 7-15: Training of local seed
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• In addition to yield, maturity
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Introduction Chickpea is grown in E
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Chickpea seed access The first majo
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Grades and standards About 75% of t
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Table 8-6: Varieties used in PVS tr
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private sector lacks the incentive
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• LZARDI-Ukiriguru: Land along wi
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• Establishing functional legume
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Table 9-1: Farmers’ preferred var
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Table 9-3: Baby trials conducted in
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Table 9-5: Reaction of pigeonpea li
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TL II focuses on farmer-participato
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Production of Breeder, Foundation,
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Mahaboobnagar and Ranga Reddy distr
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(Table 9-9 Continued) Particular To
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Chichewa) and Tanzania (Swahili). O
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Available technologies Although imp
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and Chitedze in Malawi showed that
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Table 10-6: Various classes of qual
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Awareness activities Farmers’ fie
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Annex 10-1: Target locations for pi
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Adoption studies Adoption studies f
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3.5 Yields (Tonnes/hectare) 3.0 2.5
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Supply of important traits by the i
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and marketing organization in Malaw
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Table 11-3: Grain and fodder yields
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Table 11-9: Communities and famers
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Table 11-14 Average performance of
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Table 11-16: Soybean Breeder’s Se
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Table 11-19: Grain yield (kg per ha
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Table 11-23: F3 Segregating populat
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At TSBF-CIAT in Kenya, a study was
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Number of NARS scientists trained T
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Improved access to markets Improved
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Total 107.3 259.0 609.0 975.3 246 E
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utilization and marketing. In Niger
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Annex 11-2: Tobit Model estimate of
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