This report describes the the Carob “varieties_cassava” group.

This dataset combines 539 standardized individual data sources. It has has 48437 records and 32 variables for cassava in 10 countries (Benin, Burkina Faso, Chad, Democratic Republic of the Congo, Ghana, Niger, Nigeria, Tanzania, Togo, Uganda).


These are the first 25 records:

records
dataset_id record_id trial_id planting_date harvest_date on_farm is_survey rep crop variety variety_alt variety_code dmy_storage fwy_storage fwy_residue yield_part yield yield_moisture yield_isfresh N_fertilizer P_fertilizer K_fertilizer irrigated plot_length plot_width harvest_index country adm1 location longitude latitude geo_from_source
doi_10.25502_008Q-F311 1 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-BAD9100462 39770 NA NA NA roots NA 67.8 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 2 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA30572 5 NA NA NA roots NA 59.2 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 3 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA4(2)1425 246 NA NA NA roots NA 67.9 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 4 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA71762 95781 NA NA NA roots NA 68.1 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 5 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA8200058 268 NA NA NA roots NA 69.6 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 6 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA9100416 338 NA NA NA roots NA 61.7 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 7 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA9102312 362 NA NA NA roots NA 57.8 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 8 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA9102324 374 NA NA NA roots NA 63.6 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 9 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920057 390 NA NA NA roots NA 58.6 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 10 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920326 396 NA NA NA roots NA 62.0 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 11 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920342 398 NA NA NA roots NA 58.2 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 12 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920397 400 NA NA NA roots NA 60.6 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 13 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920398 402 NA NA NA roots NA 63.3 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 14 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920429 409 NA NA NA roots NA 58.3 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 15 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA920430 411 NA NA NA roots NA 65.4 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 16 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940018 489 NA NA NA roots NA 61.1 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 17 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940020 491 NA NA NA roots NA 59.1 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 18 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940026 493 NA NA NA roots NA 72.3 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 19 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava IITA-TMS-IBA940237 7 NA NA NA roots NA 60.1 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 20 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 1 cassava TMEB1 39629 NA NA NA roots NA 55.7 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 21 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-BAD9100462 39770 NA NA NA roots NA 55.3 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 22 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA30572 5 NA NA NA roots NA 61.5 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 23 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA4(2)1425 246 NA NA NA roots NA 57.9 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 24 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA71762 95781 NA NA NA roots NA 61.9 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE
doi_10.25502_008Q-F311 25 01uyt20lcnMK 2001-07-03 2002-08-24 FALSE FALSE 2 cassava IITA-TMS-IBA8200058 268 NA NA NA roots NA 64.1 NA NA NA NA NA NA NA NA Nigeria Mokwa 5.31025 9.23942 TRUE


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


We have 48437 observations, for which we have 539 unique mapped locations.


The data are further summarized in the table below

Variable Stats / Values Freqs (% of Valid) Graph Missing
planting_date [character]
1. 2006
2. 1996
3. 1994
4. 1995
5. 2003
6. 1998-12-15
7. 1993
8. 1999
9. 1998-07-27
10. 2000
[ 334 others ]
3226(6.7%)
2213(4.6%)
1922(4.0%)
1519(3.1%)
805(1.7%)
611(1.3%)
604(1.2%)
568(1.2%)
528(1.1%)
528(1.1%)
35913(74.1%)
 0 (0.0%)
harvest_date [IDate, Date]
min : 1994-06-07
med : 2002-06-30
max : 2020-09-22
range : 26y 3m 15d
 295 distinct values 17739 (36.6%)
on_farm [logical]
1. FALSE
2. TRUE
47868(98.8%)
569(1.2%)
 0 (0.0%)
is_survey [logical] 1. FALSE
48437(100.0%)
 0 (0.0%)
rep [integer]
Mean (sd) : 2.1 (1.5)
min ≤ med ≤ max:
1 ≤ 2 ≤ 15
IQR (CV) : 2 (0.7)
 15 distinct values 0 (0.0%)
crop [character] 1. cassava
48437(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
[ 8999 others ]
1325(2.7%)
724(1.5%)
676(1.4%)
649(1.3%)
495(1.0%)
430(0.9%)
334(0.7%)
315(0.7%)
292(0.6%)
262(0.5%)
42935(88.6%)
 0 (0.0%)
variety_alt [character]
1. (Empty string)
2. ABBEY-IFE,BGM-2279,T
3. RB98/0113,TME204
4. 30572,I30572,IBA3057
5. Akena,Akena,I92/0067
6. GBAZEKOUTE,OBAMA,TME
7. 01/1800,I011800,TMS
8. 94/0330,I930330,I940
9. 96/1630,I961630,TMS
10. 99/0240,I990240,TMS
[ 4 others ]
48376(99.9%)
12(0.0%)
9(0.0%)
6(0.0%)
6(0.0%)
6(0.0%)
3(0.0%)
3(0.0%)
3(0.0%)
3(0.0%)
10(0.0%)
 0 (0.0%)
variety_code [integer]
Mean (sd) : 490108.3 (560941.1)
min ≤ med ≤ max:
3 ≤ 97587 ≤ 2707971
IQR (CV) : 1098534 (1.1)
 9010 distinct values 0 (0.0%)
dmy_storage [numeric]
Mean (sd) : 4.1 (4.7)
min ≤ med ≤ max:
0 ≤ 3.2 ≤ 135.7
IQR (CV) : 4.1 (1.1)
 1896 distinct values 35830 (74.0%)
fwy_storage [numeric]
Mean (sd) : 12095.5 (11188.6)
min ≤ med ≤ max:
0 ≤ 9600 ≤ 306000
IQR (CV) : 14100 (0.9)
 1505 distinct values 27156 (56.1%)
fwy_residue [numeric]
Mean (sd) : 1380 (1626.7)
min ≤ med ≤ max:
0 ≤ 1062.5 ≤ 75625
IQR (CV) : 1062.5 (1.2)
 713 distinct values 43974 (90.8%)
yield_part [character] 1. roots
48437(100.0%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 11665.6 (11311.2)
min ≤ med ≤ max:
0 ≤ 9000 ≤ 306000
IQR (CV) : 14500 (1)
 1714 distinct values 27203 (56.2%)
yield_moisture [numeric]
Mean (sd) : 66.5 (15.3)
min ≤ med ≤ max:
-340.1 ≤ 67.9 ≤ 99
IQR (CV) : 9.7 (0.2)
 1335 distinct values 27805 (57.4%)
yield_isfresh [logical]
All NA's
 48437 (100.0%)
N_fertilizer [logical]
All NA's
 48437 (100.0%)
P_fertilizer [logical]
All NA's
 48437 (100.0%)
K_fertilizer [logical]
All NA's
 48437 (100.0%)
irrigated [logical]
All NA's
 48437 (100.0%)
plot_length [numeric]
Mean (sd) : 4.9 (1.4)
min ≤ med ≤ max:
2.5 ≤ 4 ≤ 8
IQR (CV) : 1.5 (0.3)
 6 distinct values 40544 (83.7%)
plot_width [integer]
Mean (sd) : 3.3 (1.5)
min ≤ med ≤ max:
1 ≤ 4 ≤ 6
IQR (CV) : 2 (0.5)
1:1953(24.7%)
2:479(6.1%)
3:258(3.3%)
4:4271(54.1%)
5:354(4.5%)
6:578(7.3%)
 40544 (83.7%)
harvest_index [numeric]
Mean (sd) : 0.6 (2.1)
min ≤ med ≤ max:
0 ≤ 0.5 ≤ 54.5
IQR (CV) : 0.2 (3.3)
 764 distinct values 36469 (75.3%)
country [character]
1. Benin
2. Burkina Faso
3. Chad
4. Democratic Republic
5. Ghana
6. Niger
7. Nigeria
8. Tanzania
9. Togo
10. Uganda
472(1.0%)
190(0.4%)
124(0.3%)
48(0.1%)
1031(2.1%)
188(0.4%)
41765(86.2%)
124(0.3%)
962(2.0%)
3533(7.3%)
 0 (0.0%)
adm1 [character]
1. (Empty string)
2. Delta
3. Edo
4. Rivers
47868(98.8%)
85(0.2%)
287(0.6%)
197(0.4%)
 0 (0.0%)
location [character]
1. Ibadan
2. Mokwa
3. Ubiaja
4. Zaria
5. Namulonge
6. Malam Madori
7. Ikenne
8. Onne
9. Warri
10. Kano
[ 60 others ]
17752(36.6%)
6292(13.0%)
3871(8.0%)
3109(6.4%)
2791(5.8%)
1927(4.0%)
1534(3.2%)
1310(2.7%)
1220(2.5%)
748(1.5%)
7883(16.3%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
48437(100.0%)
 0 (0.0%)