This report describes the the Carob “varieties_cassava” group.

This dataset combines 1467 standardized individual data sources. It has has 138686 records and 33 variables for 2 crops (, cassava) in 14 countries (, Benin, Burkina Faso, Burundi, Chad, Democratic Republic of the Congo, Ghana, Malawi, Niger, Nigeria, Tanzania, Togo, Uganda, Zambia).


These are the first 25 records:

records
dataset_id trial_id record_id country adm1 location longitude latitude geo_from_source planting_date harvest_date on_farm is_survey rep crop variety variety_alt variety_code dmy_roots dmy_storage fwy_storage fwy_residue yield_part yield N_fertilizer P_fertilizer K_fertilizer inoculated irrigated plot_area plot_length plot_width harvest_index
doi_10.25502_008Q-F311 01uyt20lcnMK 1 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-BAD9100462 39770 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 2 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA30572 5 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 3 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA4(2)1425 246 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 4 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA71762 95781 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 5 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA8200058 268 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 6 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA9100416 338 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 7 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA9102312 362 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 8 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA9102324 374 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 9 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920057 390 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 10 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920326 396 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 11 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920342 398 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 12 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920397 400 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 13 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920398 402 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 14 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920429 409 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 15 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920430 411 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 16 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940018 489 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 17 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940020 491 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 18 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940026 493 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 19 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940237 7 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 20 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 1 cassava TMEB1 39629 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 21 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-BAD9100462 39770 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 22 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA30572 5 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 23 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA4(2)1425 246 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 24 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA71762 95781 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA
doi_10.25502_008Q-F311 01uyt20lcnMK 25 Nigeria Mokwa 5.31025 9.23942 TRUE 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA8200058 268 NA NA NA NA roots NA NA NA NA NA NA NA NA NA NA


You can see the contributing datasets here if you use the search term for [varieties_cassava].


We have 138686 observations, for which we have 1474 unique mapped locations. 6 records do not have coordinates.


The data are further summarized in the table below

Variable Stats / Values Freqs (% of Valid) Graph Missing
country [character]
1. Nigeria
2. Uganda
3. Ghana
4. Togo
5. Benin
6. Niger
7. Burkina Faso
8. Tanzania
9. Chad
10. Malawi
[ 4 others ]
120064(86.6%)
10424(7.5%)
2949(2.1%)
2084(1.5%)
1296(0.9%)
622(0.4%)
526(0.4%)
308(0.2%)
134(0.1%)
117(0.1%)
162(0.1%)
 0 (0.0%)
adm1 [character]
1. (Empty string)
2. Delta
3. Edo
4. Rivers
137117(98.9%)
285(0.2%)
597(0.4%)
687(0.5%)
 0 (0.0%)
location [character]
1. Ibadan
2. Mokwa
3. Ubiaja
4. Zaria
5. Namulonge
6. Ikenne
7. Malam Madori
8. Warri
9. Serere
10. Onne
[ 111 others ]
50913(36.7%)
17642(12.7%)
10010(7.2%)
8411(6.1%)
7070(5.1%)
6977(5.0%)
4962(3.6%)
4449(3.2%)
3303(2.4%)
2908(2.1%)
22041(15.9%)
 0 (0.0%)
geo_from_source [logical]
1. FALSE
2. TRUE
187(0.1%)
138493(99.9%)
 6 (0.0%)
planting_date [character]
1. 2006
2. 1995
3. 1994
4. 1996
5. 2003
6. 2007
7. 1993
8. 2009
9. 1998
10. 1999
[ 754 others ]
5710(4.1%)
4651(3.4%)
4190(3.0%)
4189(3.0%)
2490(1.8%)
1840(1.3%)
1771(1.3%)
1234(0.9%)
1208(0.9%)
1181(0.9%)
110222(79.5%)
 0 (0.0%)
harvest_date [IDate, Date]
min : 1994-05-08
med : 2003-06-26
max : 2020-09-22
range : 26y 4m 14d
 721 distinct values 43221 (31.2%)
on_farm [logical]
1. FALSE
2. TRUE
136924(98.7%)
1756(1.3%)
 6 (0.0%)
is_survey [logical] 1. FALSE
138680(100.0%)
 6 (0.0%)
rep [integer]
Mean (sd) : 2.5 (10.8)
min ≤ med ≤ max:
1 ≤ 2 ≤ 425
IQR (CV) : 2 (4.3)
 237 distinct values 87 (0.1%)
crop [character]
1. (Empty string)
2. cassava
6(0.0%)
138680(100.0%)
 0 (0.0%)
variety [character]
1. IITA-TMS-IBA30572
2. IITA-TMS-IBA9102324
3. IITA-TMS-IBA4(2)1425
4. TMEB1
5. IITA-TMS-IBA920326
6. IITA-TMS-IBA8200058
7. TMEB419
8. IITA-TMS-IBA980581
9. IITA-TMS-IBA920057
10. TMEB117
[ 19957 others ]
3582(2.6%)
1913(1.4%)
1825(1.3%)
1721(1.2%)
1325(1.0%)
1314(0.9%)
884(0.6%)
814(0.6%)
774(0.6%)
759(0.5%)
123775(89.2%)
 0 (0.0%)
variety_alt [character]
1. (Empty string)
2. ABBEY-IFE,BGM-2279,T
3. 30572,I30572,IBA3057
4. RB98/0113,TME204
5. Akena,Akena,I92/0067
6. MH97/2961,MH972961
7. MM97/0516,MM970516
8. GUZO,MOMBASA
9. 82/00058,I8200058,TM
10. 92/0326,I920326,TMS
[ 49 others ]
138337(99.7%)
24(0.0%)
23(0.0%)
19(0.0%)
16(0.0%)
11(0.0%)
11(0.0%)
9(0.0%)
8(0.0%)
8(0.0%)
220(0.2%)
 0 (0.0%)
variety_code [character]
1. 5
2. 374
3. 246
4. 39629
5. 396
6. 268
7. 39671
8. 723
9. 390
10. 39632
[ 19968 others ]
3580(2.6%)
1913(1.4%)
1825(1.3%)
1721(1.2%)
1325(1.0%)
1314(0.9%)
882(0.6%)
814(0.6%)
774(0.6%)
759(0.5%)
123779(89.3%)
 0 (0.0%)
dmy_roots [numeric]
Mean (sd) : 1610 (1100.2)
min ≤ med ≤ max:
55.9 ≤ 1498.3 ≤ 4783.6
IQR (CV) : 1207.5 (0.7)
 42 distinct values 138644 (100.0%)
dmy_storage [numeric]
Mean (sd) : 4.5 (4.5)
min ≤ med ≤ max:
0 ≤ 3.5 ≤ 135.7
IQR (CV) : 4.5 (1)
 2978 distinct values 101647 (73.3%)
fwy_storage [numeric]
Mean (sd) : 12791.8 (12478.3)
min ≤ med ≤ max:
0 ≤ 10000 ≤ 336000
IQR (CV) : 14917.5 (1)
 2638 distinct values 75228 (54.2%)
fwy_residue [numeric]
Mean (sd) : 1773.7 (1831.8)
min ≤ med ≤ max:
0 ≤ 1312.5 ≤ 75625
IQR (CV) : 1468.8 (1)
 1445 distinct values 121967 (87.9%)
yield_part [character]
1. (Empty string)
2. roots
3. tubers
6(0.0%)
138599(99.9%)
81(0.1%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 12800.6 (12480)
min ≤ med ≤ max:
0 ≤ 10000 ≤ 336000
IQR (CV) : 15000 (1)
 2655 distinct values 75069 (54.1%)
N_fertilizer [logical]
All NA's
 138686 (100.0%)
P_fertilizer [logical]
All NA's
 138686 (100.0%)
K_fertilizer [logical]
All NA's
 138686 (100.0%)
inoculated [logical] 1. FALSE
187(100.0%)
 138499 (99.9%)
irrigated [logical]
All NA's
 138686 (100.0%)
plot_area [integer] 1 distinct value
8:28(100.0%)
 138658 (100.0%)
plot_length [numeric]
Mean (sd) : 5.2 (1.6)
min ≤ med ≤ max:
2.5 ≤ 5 ≤ 9
IQR (CV) : 1.5 (0.3)
 10 distinct values 111628 (80.5%)
plot_width [integer]
Mean (sd) : 2.9 (1.6)
min ≤ med ≤ max:
1 ≤ 4 ≤ 6
IQR (CV) : 3 (0.6)
1:9330(34.5%)
2:3302(12.2%)
3:258(1.0%)
4:11653(43.1%)
5:615(2.3%)
6:1900(7.0%)
 111628 (80.5%)
harvest_index [numeric]
Mean (sd) : 0.6 (1.4)
min ≤ med ≤ max:
0 ≤ 0.5 ≤ 54.5
IQR (CV) : 0.2 (2.4)
 1274 distinct values 104697 (75.5%)