This report describes standardized data for “Biofortification of Cassava for high total carotenoid retention using an Advanced Yield Trial (09 clones) in Ubiaja 2017/2018 Breeding Season from 2016pyt30yrt.ubiaja”. 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). Biofortification of Cassava for high total carotenoid retention using an Advanced Yield Trial (09 clones) in Ubiaja 2017/2018 Breeding Season from 2016pyt30yrt.ubiaja. International Institute of Tropical Agriculture (IITA). Not versioned. doi:10.25502/T1XX-TZ44

The dataset has 27 records and 27 variables for cassava in Nigeria. The dataset has 1 treatment(s): variety.


These are the first 25 records:

records
country location longitude latitude geo_from_source trial_id planting_date harvest_date on_farm is_survey rep crop variety variety_alt variety_code fwy_storage fwy_residue yield_part yield N_fertilizer P_fertilizer K_fertilizer irrigated plot_length plot_width
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-IBA070539 NA 29531 545.4545 250.00000 roots 545.4545 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-IBA070593 NA 29557 681.8182 431.81818 roots 681.8182 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-IBA141092 NA 398035 227.2727 90.90909 roots 227.2727 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-UBJ150435 NA 586857 500.0000 318.18182 roots 500.0000 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-UBJ150442 NA 586852 681.8182 363.63636 roots 681.8182 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-UBJ150479 NA 586853 340.9091 454.54545 roots 340.9091 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-UBJ150489 NA 586864 931.8182 909.09091 roots 931.8182 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-UBJ150503 NA 586867 704.5455 454.54545 roots 704.5455 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 1 cassava IITA-TMS-UBJ150507 NA 586850 454.5455 227.27273 roots 454.5455 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-IBA070539 NA 29531 363.6364 204.54545 roots 363.6364 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-IBA070593 NA 29557 500.0000 363.63636 roots 500.0000 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-IBA141092 NA 398035 590.9091 227.27273 roots 590.9091 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-UBJ150435 NA 586857 431.8182 250.00000 roots 431.8182 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-UBJ150442 NA 586852 227.2727 454.54545 roots 227.2727 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-UBJ150479 NA 586853 272.7273 272.72727 roots 272.7273 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-UBJ150489 NA 586864 727.2727 454.54545 roots 727.2727 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-UBJ150503 NA 586867 863.6364 545.45455 roots 863.6364 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 2 cassava IITA-TMS-UBJ150507 NA 586850 454.5455 250.00000 roots 454.5455 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-IBA070539 NA 29531 545.4545 227.27273 roots 545.4545 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-IBA070593 NA 29557 318.1818 272.72727 roots 318.1818 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-IBA141092 NA 398035 363.6364 250.00000 roots 363.6364 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-UBJ150435 NA 586857 636.3636 454.54545 roots 636.3636 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-UBJ150442 NA 586852 454.5455 409.09091 roots 454.5455 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-UBJ150479 NA 586853 409.0909 363.63636 roots 409.0909 NA NA NA NA 5.5 4
Nigeria Ubiaja 6.39177 6.64933 TRUE 17ayt9yrtUB 2017-07-07 2018-07-09 FALSE FALSE 3 cassava IITA-TMS-UBJ150489 NA 586864 545.4545 909.09091 roots 545.4545 NA NA NA NA 5.5 4


The observations are for 1 locations, for which we have 1 unique mapped locations.


The standardization script emits the following non-compliance warnings.

message
27 harvest_date more than 366 days after planting_date

The overall quality of the dataset, given the completeness of required variables was 5.6 on a scale of 10. See the table below

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


The data are further summarized in the table below.

Variable Stats / Values Freqs (% of Valid) Graph Missing
country [character] 1. Nigeria
27(100.0%)
 0 (0.0%)
location [character] 1. Ubiaja
27(100.0%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
27(100.0%)
 0 (0.0%)
trial_id [character] 1. 17ayt9yrtUB
27(100.0%)
 0 (0.0%)
planting_date [character] 1. 2017-07-07
27(100.0%)
 0 (0.0%)
harvest_date [character] 1. 2018-07-09
27(100.0%)
 0 (0.0%)
on_farm [logical] 1. FALSE
27(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
27(100.0%)
 0 (0.0%)
rep [integer]
Mean (sd) : 2 (0.8)
min ≤ med ≤ max:
1 ≤ 2 ≤ 3
IQR (CV) : 2 (0.4)
1:9(33.3%)
2:9(33.3%)
3:9(33.3%)
 0 (0.0%)
crop [character] 1. cassava
27(100.0%)
 0 (0.0%)
variety [character]
1. IITA-TMS-IBA070539
2. IITA-TMS-IBA070593
3. IITA-TMS-IBA141092
4. IITA-TMS-UBJ150435
5. IITA-TMS-UBJ150442
6. IITA-TMS-UBJ150479
7. IITA-TMS-UBJ150489
8. IITA-TMS-UBJ150503
9. IITA-TMS-UBJ150507
3(11.1%)
3(11.1%)
3(11.1%)
3(11.1%)
3(11.1%)
3(11.1%)
3(11.1%)
3(11.1%)
3(11.1%)
 0 (0.0%)
variety_alt [logical]
All NA's
 27 (100.0%)
variety_code [integer]
Mean (sd) : 442029.6 (232397.5)
min ≤ med ≤ max:
29531 ≤ 586852 ≤ 586867
IQR (CV) : 188822 (0.5)
29531:3(11.1%)
29557:3(11.1%)
398035:3(11.1%)
586850:3(11.1%)
586852:3(11.1%)
586853:3(11.1%)
586857:3(11.1%)
586864:3(11.1%)
586867:3(11.1%)
 0 (0.0%)
fwy_storage [numeric]
Mean (sd) : 516.8 (181)
min ≤ med ≤ max:
227.3 ≤ 500 ≤ 931.8
IQR (CV) : 272.7 (0.4)
 17 distinct values 0 (0.0%)
fwy_residue [numeric]
Mean (sd) : 377.1 (186.8)
min ≤ med ≤ max:
90.9 ≤ 363.6 ≤ 909.1
IQR (CV) : 204.5 (0.5)
 12 distinct values 0 (0.0%)
yield_part [character] 1. roots
27(100.0%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 516.8 (181)
min ≤ med ≤ max:
227.3 ≤ 500 ≤ 931.8
IQR (CV) : 272.7 (0.4)
 17 distinct values 0 (0.0%)
N_fertilizer [logical]
All NA's
 27 (100.0%)
P_fertilizer [logical]
All NA's
 27 (100.0%)
K_fertilizer [logical]
All NA's
 27 (100.0%)
irrigated [logical]
All NA's
 27 (100.0%)
plot_length [numeric] 1 distinct value
5.50:27(100.0%)
 0 (0.0%)
plot_width [integer] 1 distinct value
4:27(100.0%)
 0 (0.0%)