This report describes standardized data for “Advanced yield trial Set A in Mokwa using 20 accessions. 15 selected from 17.GS.C0.C1.AYT.58.IK,17.GS.C0.C1.AYT.58.IB and 17.GS.C0.C1.AYT.58.UB .Best 5 selected from each locations and five checks”. These data were standardized on 2024-09-18 by Robert Hijmans with this R script. The original data have a CC-BY license. Here you can download the standardized data.

This is the full citation of the data set:

Kulakow, Peter; Ismail Rabbi; Elizabeth Parkes; Chiedozie Egesi; Olufemi Aina; Prasad Peteti; Agbona Afolabi (2018). Advanced yield trial Set A in Mokwa using 20 accessions. 15 selected from 17.GS.C0.C1.AYT.58.IK,17.GS.C0.C1.AYT.58.IB and 17.GS.C0.C1.AYT.58.UB .Best 5 selected from each locations and five checks. International Institute of Tropical Agriculture (IITA). Not versioned. doi:10.25502/MSJ9-9Y74

The dataset has 60 records and 28 variables for cassava in Nigeria. The dataset has 1 treatment(s): variety.


These are the first 25 records:

records
trial_id planting_date harvest_date on_farm is_survey rep crop variety variety_alt variety_code fwy_storage fwy_residue yield_part yield yield_moisture N_fertilizer P_fertilizer K_fertilizer irrigated plot_length plot_width country location longitude latitude geo_from_source
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava IITA-TMS-IBA000070 NA 1936 950.0 1187.50 roots 950.0 76 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava IITA-TMS-IBA30572 NA 5 837.5 1625.00 roots 837.5 76 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava IITA-TMS-IBA980581 NA 723 637.5 1400.00 roots 637.5 76 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava IITA-TMS-IBA982101 NA 725 200.0 300.00 roots 200.0 77 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMEB419 NA 39671 1075.0 1475.00 roots 1075.0 80 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1020P0002 NA 48508 812.5 1587.50 roots 812.5 84 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1020P0004 NA 48509 900.0 987.50 roots 900.0 80 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1108P0007 NA 48536 637.5 962.50 roots 637.5 70 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1109P0009 NA 48537 1087.5 1050.00 roots 1087.5 73 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1122P0004 NA 52429 562.5 475.00 roots 562.5 80 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1124P0003 NA 52430 1250.0 1375.00 roots 1250.0 79 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1212P0058 NA 48556 1337.5 1200.00 roots 1337.5 87 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1306P0001 NA 52450 1087.5 1250.00 roots 1087.5 75 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1307P0004 NA 52452 762.5 1512.50 roots 762.5 76 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1307P0005 NA 52453 600.0 1275.00 roots 600.0 85 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1307P0006 NA 51436 1375.0 1512.50 roots 1375.0 76 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1307P0010 NA 52455 875.0 1437.50 roots 875.0 78 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1307P0011 NA 48584 775.0 1143.75 roots 775.0 80 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1307P0023 NA 52457 925.0 1337.50 roots 925.0 71 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 1 cassava TMS13F1332P0042 NA 48569 400.0 1062.50 roots 400.0 72 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 2 cassava IITA-TMS-IBA000070 NA 1936 1062.5 737.50 roots 1062.5 78 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 2 cassava IITA-TMS-IBA30572 NA 5 1125.0 1250.00 roots 1125.0 78 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 2 cassava IITA-TMS-IBA980581 NA 723 875.0 1875.00 roots 875.0 78 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 2 cassava IITA-TMS-IBA982101 NA 725 587.5 937.50 roots 587.5 79 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE
17.GS.C0.C1.AYT.20.setA.MK 2017-06-10 2018-05-31 FALSE FALSE 2 cassava TMEB419 NA 39671 425.0 875.00 roots 425.0 78 NA NA NA NA 4 4 Nigeria Mokwa 5.31025 9.23942 TRUE


The observations were made at 1 locations. We have coordinates for 1 of these locations.


The standardization script emits the following non-compliance warnings.

type message
invalid terms disease: mosaic

The overall quality of the dataset, given the completeness of required variables was 6.2 on a scale of 10. See the table below

variable completeness (%)
planting_date 100
harvest_date 100
crop 100
variety 100
N_fertilizer 0
P_fertilizer 0
K_fertilizer 0
irrigated 0
latitude 100
longitude 100
location 100
adm 0
yield 100


The data are further summarized in the table below.

Variable Stats / Values Freqs (% of Valid) Graph Missing
trial_id [character] 1. 17.GS.C0.C1.AYT.20.s
60(100.0%)
 0 (0.0%)
planting_date [character] 1. 2017-06-10
60(100.0%)
 0 (0.0%)
harvest_date [character] 1. 2018-05-31
60(100.0%)
 0 (0.0%)
on_farm [logical] 1. FALSE
60(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
60(100.0%)
 0 (0.0%)
rep [integer]
Mean (sd) : 2 (0.8)
min ≤ med ≤ max:
1 ≤ 2 ≤ 3
IQR (CV) : 2 (0.4)
1:20(33.3%)
2:20(33.3%)
3:20(33.3%)
 0 (0.0%)
crop [character] 1. cassava
60(100.0%)
 0 (0.0%)
variety [character]
1. IITA-TMS-IBA000070
2. IITA-TMS-IBA30572
3. IITA-TMS-IBA980581
4. IITA-TMS-IBA982101
5. TMEB419
6. TMS13F1020P0002
7. TMS13F1020P0004
8. TMS13F1108P0007
9. TMS13F1109P0009
10. TMS13F1122P0004
[ 10 others ]
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
3(5.0%)
30(50.0%)
 0 (0.0%)
variety_alt [logical]
All NA's
 60 (100.0%)
variety_code [integer]
Mean (sd) : 40071.1 (19991.2)
min ≤ med ≤ max:
5 ≤ 48562.5 ≤ 52457
IQR (CV) : 6136.2 (0.5)
 20 distinct values 0 (0.0%)
fwy_storage [numeric]
Mean (sd) : 869.2 (297.3)
min ≤ med ≤ max:
200 ≤ 875 ≤ 1500
IQR (CV) : 437.5 (0.3)
 39 distinct values 0 (0.0%)
fwy_residue [numeric]
Mean (sd) : 1059.9 (354.9)
min ≤ med ≤ max:
275 ≤ 1006.2 ≤ 1875
IQR (CV) : 571.9 (0.3)
 47 distinct values 0 (0.0%)
yield_part [character] 1. roots
60(100.0%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 869.2 (297.3)
min ≤ med ≤ max:
200 ≤ 875 ≤ 1500
IQR (CV) : 437.5 (0.3)
 39 distinct values 0 (0.0%)
yield_moisture [integer]
Mean (sd) : 78.3 (4.3)
min ≤ med ≤ max:
70 ≤ 78 ≤ 88
IQR (CV) : 5.2 (0.1)
 19 distinct values 0 (0.0%)
N_fertilizer [logical]
All NA's
 60 (100.0%)
P_fertilizer [logical]
All NA's
 60 (100.0%)
K_fertilizer [logical]
All NA's
 60 (100.0%)
irrigated [logical]
All NA's
 60 (100.0%)
plot_length [integer] 1 distinct value
4:60(100.0%)
 0 (0.0%)
plot_width [integer] 1 distinct value
4:60(100.0%)
 0 (0.0%)
country [character] 1. Nigeria
60(100.0%)
 0 (0.0%)
location [character] 1. Mokwa
60(100.0%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
60(100.0%)
 0 (0.0%)