This report describes the the Carob “varieties_cassava” group.

This dataset combines 1466 standardized individual data sources. It has has 138605 records and 33 variables for 2 crops (, cassava) in 13 countries (, Benin, Burkina Faso, 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


We have 138605 observations, for which we have 1465 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
[ 3 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%)
81(0.1%)
 0 (0.0%)
adm1 [character]
1. (Empty string)
2. Delta
3. Edo
4. Rivers
137036(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
[ 102 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%)
21960(15.8%)
 0 (0.0%)
geo_from_source [logical]
1. FALSE
2. TRUE
106(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
[ 749 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%)
110141(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
 713 distinct values 43221 (31.2%)
on_farm [logical]
1. FALSE
2. TRUE
136924(98.8%)
1675(1.2%)
 6 (0.0%)
is_survey [logical] 1. FALSE
138599(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 6 (0.0%)
crop [character]
1. (Empty string)
2. cassava
6(0.0%)
138599(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
[ 19954 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%)
123694(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 ]
138256(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%)
123698(89.2%)
 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 138563 (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 101566 (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 75147 (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 121886 (87.9%)
yield_part [character]
1. (Empty string)
2. roots
6(0.0%)
138599(100.0%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 12783.8 (12473.6)
min ≤ med ≤ max:
0 ≤ 10000 ≤ 336000
IQR (CV) : 14900 (1)
 2643 distinct values 75069 (54.2%)
N_fertilizer [logical]
All NA's
 138605 (100.0%)
P_fertilizer [logical]
All NA's
 138605 (100.0%)
K_fertilizer [logical]
All NA's
 138605 (100.0%)
inoculated [logical] 1. FALSE
106(100.0%)
 138499 (99.9%)
irrigated [logical]
All NA's
 138605 (100.0%)
plot_area [integer] 1 distinct value
8:28(100.0%)
 138577 (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 111547 (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%)
 111547 (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 104616 (75.5%)