This report describes the the Carob “varieties_cowpea” group.

This dataset combines 76 standardized individual data sources. It has has 23193 records and 23 variables for cowpea in 24 countries (Bangladesh, Benin, Botswana, Burundi, Cabo Verde, Cameroon, Colombia, Costa Rica, Côte d’Ivoire, Cyprus, Democratic Republic of the Congo, Eswatini, Ghana, Guinea, Mexico, Namibia, Niger, Nigeria, Sierra Leone, Tanzania, Thailand, Togo, Zambia, Zimbabwe).


These are the first 25 records:

records
trial_id rep crop yield_part yield yield_moisture yield_isfresh dataset_id record_id on_farm is_survey variety country location longitude latitude geo_from_source planting_date harvest_date N_fertilizer P_fertilizer K_fertilizer irrigated
ad1295gumel 1 cowpea seed 31.25 NA NA doi_10.25502_20180817_1124_BO 1 FALSE FALSE IT92KD-404-1 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 62.50 NA NA doi_10.25502_20180817_1124_BO 2 FALSE FALSE IT89KD-391 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 250.00 NA NA doi_10.25502_20180817_1124_BO 3 FALSE FALSE IT92KD-372-1-2 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 390.63 NA NA doi_10.25502_20180817_1124_BO 4 FALSE FALSE IT88DM-363 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 406.25 NA NA doi_10.25502_20180817_1124_BO 5 FALSE FALSE IT88D-365 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 109.38 NA NA doi_10.25502_20180817_1124_BO 6 FALSE FALSE IT90K-277-2 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 31.25 NA NA doi_10.25502_20180817_1124_BO 7 FALSE FALSE IT94K-2332-5 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 250.00 NA NA doi_10.25502_20180817_1124_BO 8 FALSE FALSE IT89KD-374 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 62.50 NA NA doi_10.25502_20180817_1124_BO 9 FALSE FALSE DANILA Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 1 cowpea seed 187.50 NA NA doi_10.25502_20180817_1124_BO 10 FALSE FALSE IT90K-109 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 62.50 NA NA doi_10.25502_20180817_1124_BO 11 FALSE FALSE IT88DM-363 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 93.75 NA NA doi_10.25502_20180817_1124_BO 12 FALSE FALSE IT90K-109 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 31.25 NA NA doi_10.25502_20180817_1124_BO 13 FALSE FALSE IT92KD-404-1 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 156.25 NA NA doi_10.25502_20180817_1124_BO 14 FALSE FALSE IT89KD-391 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 62.50 NA NA doi_10.25502_20180817_1124_BO 15 FALSE FALSE IT92KD-372-1-2 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 93.75 NA NA doi_10.25502_20180817_1124_BO 16 FALSE FALSE IT88D-365 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 93.75 NA NA doi_10.25502_20180817_1124_BO 17 FALSE FALSE IT94K-2332-5 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 156.25 NA NA doi_10.25502_20180817_1124_BO 18 FALSE FALSE IT89KD-374 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 93.75 NA NA doi_10.25502_20180817_1124_BO 19 FALSE FALSE DANILA Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 2 cowpea seed 31.25 NA NA doi_10.25502_20180817_1124_BO 20 FALSE FALSE IT90K-277-2 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 3 cowpea seed 187.50 NA NA doi_10.25502_20180817_1124_BO 21 FALSE FALSE IT89KD-374 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 3 cowpea seed 125.00 NA NA doi_10.25502_20180817_1124_BO 22 FALSE FALSE DANILA Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 3 cowpea seed 93.75 NA NA doi_10.25502_20180817_1124_BO 23 FALSE FALSE IT90K-277-2 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 3 cowpea seed 62.50 NA NA doi_10.25502_20180817_1124_BO 24 FALSE FALSE IT94K-2332-5 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA
ad1295gumel 3 cowpea seed 125.00 NA NA doi_10.25502_20180817_1124_BO 25 FALSE FALSE IT89KD-391 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 NA NA NA NA


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


We have 23193 observations, for which we have 76 unique mapped locations.


The data are further summarized in the table below

Variable Stats / Values Freqs (% of Valid) Graph Missing
rep [integer]
Mean (sd) : 4.1 (23.4)
min ≤ med ≤ max:
-4 ≤ 2 ≤ 401
IQR (CV) : 2 (5.7)
 12 distinct values 436 (1.9%)
crop [character] 1. cowpea
23193(100.0%)
 0 (0.0%)
yield_part [character] 1. seed
23193(100.0%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 859.2 (663.4)
min ≤ med ≤ max:
0 ≤ 717.8 ≤ 9684.4
IQR (CV) : 855.1 (0.8)
 10264 distinct values 1422 (6.1%)
yield_moisture [logical]
All NA's
 23193 (100.0%)
yield_isfresh [logical]
All NA's
 23193 (100.0%)
on_farm [logical] 1. FALSE
23193(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
23193(100.0%)
 0 (0.0%)
variety [character]
1. LOCALCHECK
2. IT86D-719
3. IT84S-2246-4
4. IAR-48
5. IT89KD-245
6. IT89KD-260
7. IT89KD-391
8. IT86D-1010
9. IT87D-611-3
10. IT87D-885
[ 983 others ]
629(2.7%)
419(1.8%)
324(1.4%)
279(1.2%)
228(1.0%)
220(0.9%)
212(0.9%)
210(0.9%)
203(0.9%)
200(0.9%)
20269(87.4%)
 0 (0.0%)
country [character]
1. Nigeria
2. Niger
3. Cameroon
4. Colombia
5. Ghana
6. Tanzania
7. Benin
8. Togo
9. Sierra Leone
10. Namibia
[ 14 others ]
18187(78.4%)
766(3.3%)
636(2.7%)
516(2.2%)
488(2.1%)
375(1.6%)
312(1.3%)
304(1.3%)
208(0.9%)
200(0.9%)
1201(5.2%)
 0 (0.0%)
location [character]
1. Kano
2. Gummel
3. IITA Ibadan
4. Samaru
5. Mokwa
6. Maiduguri
7. Minjibir
8. Ibadan
9. Bauchi
10. Badeggi
[ 60 others ]
4574(19.7%)
2412(10.4%)
1744(7.5%)
1640(7.1%)
1238(5.3%)
1004(4.3%)
954(4.1%)
552(2.4%)
467(2.0%)
448(1.9%)
8160(35.2%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
23193(100.0%)
 0 (0.0%)
planting_date [IDate, Date]
min : 1987-03-06
med : 1990-02-10
max : 1998-04-24
range : 11y 1m 18d
 57 distinct values 0 (0.0%)
harvest_date [IDate, Date]
min : 1987-08-15
med : 1991-06-09
max : 1996-12-12
range : 9y 3m 27d
 59 distinct values 0 (0.0%)
N_fertilizer [logical]
All NA's
 23193 (100.0%)
P_fertilizer [logical]
All NA's
 23193 (100.0%)
K_fertilizer [logical]
All NA's
 23193 (100.0%)
irrigated [logical]
All NA's
 23193 (100.0%)