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Table 4 Repartition of households over main cowpea varieties grown

From: IITA’s genebank, cowpea diversity on farms, and farmers’ welfare in Nigeria

Cowpea varieties North West North East
Total area planted (in ha) as main cowpea variety Number of households growing it as main cowpea variety Total area planted (in ha) as main cowpea variety Number of households growing it as main cowpea variety
Improved cowpea varieties
 IT99K-216-24-2/Kwankwaso 33.544 110 18.777 27
 IT90K-277-2/Sasakawa 26.363 62 12.732 18
 IT89KD-288/Sampea-11 32.724 92 39.210 45
 IT97K-499-35/Sampea-10 10.041 25 3.062 5
 IAR48/Sampea 7 2.538 4 3.326 3
 IT89KD-391/Sampea 12 4.224 9 4.656 6
 IT99K-573-1-1/Sampea-14 18.191 45 9.605 13
 IT98K-573-2-1/Sampea 15 5.746 22 2.209 6
 IT93K-452-1/Sampea 8 2.543 6 1.304 3
 IT98K-131-2 2.068 6 0.118 1
 IT98K-491-4 13.355 30 13.064 26
 IT07K-318-33/Sampea 17 0.605 1 0.429 1
 IT07K-292-10/Sampea 16 4.596 16 2.99 7
 IT98K-205-8 5.8 18 1.532 3
 UAM09-1055-6 21.104 64 18.960 32
 UAM09-1046-6-1 2.923 5 0 0
Cowpea landraces
 Silver (Local) 8.282 16 15.08 25
 Portiskum (Local) 27.431 36 25.252 33
 Kananado Brown (Local) 3.130 13 16.951 22
 Kananado White/Dan Bokolo 94.548 175 67.997 103
 Gwalam 24.205 60 17.176 56
 Bosadp 8.461 24 13.783 30
Other improved cowpea varieties 2.657 10 0 0
Other cowpea landraces 213.654 358 131.773 162