This report describes the the Carob “varieties_cowpea” group.

This dataset combines 76 standardized individual data sources. It has has 23193 records and 21 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
dataset_id record_id trial_id planting_date harvest_date on_farm is_survey rep crop variety yield_part yield N_fertilizer P_fertilizer K_fertilizer irrigated country location longitude latitude geo_from_source
doi_10.25502_20180817_1124_BO 1 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT92KD-404-1 seed 31.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 2 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT89KD-391 seed 62.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 3 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT92KD-372-1-2 seed 250 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 4 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT88DM-363 seed 390.63 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 5 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT88D-365 seed 406.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 6 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT90K-277-2 seed 109.38 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 7 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT94K-2332-5 seed 31.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 8 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT89KD-374 seed 250 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 9 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea DANILA seed 62.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 10 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT90K-109 seed 187.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 11 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT88DM-363 seed 62.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 12 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT90K-109 seed 93.75 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 13 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT92KD-404-1 seed 31.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 14 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT89KD-391 seed 156.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 15 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT92KD-372-1-2 seed 62.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 16 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT88D-365 seed 93.75 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 17 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT94K-2332-5 seed 93.75 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 18 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT89KD-374 seed 156.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 19 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea DANILA seed 93.75 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 20 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT90K-277-2 seed 31.25 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 21 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT89KD-374 seed 187.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 22 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea DANILA seed 125 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 23 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT90K-277-2 seed 93.75 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 24 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT94K-2332-5 seed 62.5 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE
doi_10.25502_20180817_1124_BO 25 AD1295GUMEL 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT89KD-391 seed 125 NA NA NA NA Nigeria Gummel 9.38396 12.62261 TRUE


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
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%)
on_farm [logical] 1. FALSE
23193(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
23193(100.0%)
 0 (0.0%)
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%)
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%)
yield_part [character] 1. seed
23193(100.0%)
 0 (0.0%)
yield [character]
1. (Empty string)
2. 0
3. 750
4. 500
5. 334
6. 1000
7. 167
8. 501
9. 835
10. 1250
[ 10256 others ]
1358(5.9%)
480(2.1%)
102(0.4%)
100(0.4%)
97(0.4%)
92(0.4%)
89(0.4%)
88(0.4%)
85(0.4%)
76(0.3%)
20626(88.9%)
 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%)
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%)