This report describes standardized data for “Assessment of cassava varieties in a mapping population 9 (GM1829-6 XSM3435-62) in Ibadan 2016/2017 Breeding Season”. 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 (2017). Assessment of cassava varieties in a mapping population 9 (GM1829-6 XSM3435-62) in Ibadan 2016/2017 Breeding Season. International Institute of Tropical Agriculture (IITA). Not versioned. doi:10.25502/Z9AG-8115

The dataset has 167 records and 25 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 yield_part yield_moisture N_fertilizer P_fertilizer K_fertilizer irrigated plot_length plot_width country location longitude latitude geo_from_source
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0001 NA 404861 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0002 NA 457379 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0003 NA 457380 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0006 NA 457383 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0007 NA 457384 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0008 NA 457385 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0009 NA 457386 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0010 NA 457387 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0011 NA 457388 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0012 NA 457389 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0013 NA 457390 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0014 NA 457391 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0015 NA 457392 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava GM1829-6 NA 458134 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0016 NA 457393 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0017 NA 457394 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0018 NA 457395 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0019 NA 457396 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0020 NA 457397 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0021 NA 457398 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0022 NA 457399 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0023 NA 457400 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0024 NA 457401 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0026 NA 457403 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 TRUE
16.GS.C1.MP9.IB 2016-11-03 2017-11-03 FALSE FALSE 1 cassava TMS14F1313P0027 NA 457404 roots NA NA NA NA NA 8 1 Nigeria Ibadan 3.94704 7.37754 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
metadata not a variable in the data: yield
missing variables yield

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. 16.GS.C1.MP9.IB
167(100.0%)
 0 (0.0%)
planting_date [character] 1. 2016-11-03
167(100.0%)
 0 (0.0%)
harvest_date [character] 1. 2017-11-03
167(100.0%)
 0 (0.0%)
on_farm [logical] 1. FALSE
167(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
167(100.0%)
 0 (0.0%)
rep [integer] 1 distinct value
1:167(100.0%)
 0 (0.0%)
crop [character] 1. cassava
167(100.0%)
 0 (0.0%)
variety [character]
1. GM1829-6
2. IITA-TMS-IBA011412
3. IITA-TMS-IBA070593
4. SM3435-62
5. TMEB419
6. TMS14F1313P0001
7. TMS14F1313P0002
8. TMS14F1313P0003
9. TMS14F1313P0006
10. TMS14F1313P0007
[ 157 others ]
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
1(0.6%)
157(94.0%)
 0 (0.0%)
variety_alt [logical]
All NA's
 167 (100.0%)
variety_code [integer]
Mean (sd) : 450082.7 (59720.6)
min ≤ med ≤ max:
1281 ≤ 457463 ≤ 630245
IQR (CV) : 90.5 (0.1)
 167 distinct values 0 (0.0%)
yield_part [character] 1. roots
167(100.0%)
 0 (0.0%)
yield_moisture [logical]
All NA's
 167 (100.0%)
N_fertilizer [logical]
All NA's
 167 (100.0%)
P_fertilizer [logical]
All NA's
 167 (100.0%)
K_fertilizer [logical]
All NA's
 167 (100.0%)
irrigated [logical]
All NA's
 167 (100.0%)
plot_length [integer] 1 distinct value
8:167(100.0%)
 0 (0.0%)
plot_width [integer] 1 distinct value
1:167(100.0%)
 0 (0.0%)
country [character] 1. Nigeria
167(100.0%)
 0 (0.0%)
location [character] 1. Ibadan
167(100.0%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
167(100.0%)
 0 (0.0%)