This report describes standardized data for “Assessment of Cassava varieties for multiple pest resistance ability in a Uniformed Yield Trial (30 clones) in Ibadan 1999/2000 Breeding Season.”. These data were standardized on 2024-09-18 by Robert Hijmans with this R script. The original data are available here under a CC-BY license.

This is the full citation of the data set:

Kulakow, Peter; Ismail Rabbi; Elizabeth Parkes; Chiedozie Egesi; Olufemi Aina; Prasad Peteti; Agbona Afolabi (2020). Assessment of Cassava varieties for multiple pest resistance ability in a Uniformed Yield Trial (30 clones) in Ibadan 1999/2000 Breeding Season. International Institute of Tropical Agriculture (IITA). doi:10.25502/CXVV-2C93

The dataset has 120 records and 28 variables for cassava in Nigeria.


These are the first 25 records:

records
dataset_id trial_id record_id country location longitude latitude geo_from_source planting_date harvest_date on_farm is_survey rep crop variety variety_alt variety_code dmy_storage fwy_storage fwy_residue yield_part yield N_fertilizer P_fertilizer K_fertilizer irrigated plot_length plot_width
doi_10.25502_CXVV-2C93 99uyt30mprIB 1 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA30572 NA 5 2.32 10150 NA roots 10150 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 2 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA4(2)1425 NA 246 1.37 5500 NA roots 5500 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 3 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA8200058 NA 268 3.91 12300 NA roots 12300 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 4 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA9102324 NA 374 2.74 15400 NA roots 15400 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 5 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA920325 NA 394 1.21 4350 NA roots 4350 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 6 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA920326 NA 396 2.70 10050 NA roots 10050 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 7 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA950166 NA 526 0.94 4750 NA roots 4750 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 8 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960016 NA 576 3.31 11500 NA roots 11500 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 9 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960035 NA 582 0.76 3350 NA roots 3350 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 10 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960037 NA 584 1.92 6650 NA roots 6650 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 11 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960160 NA 592 2.41 10550 NA roots 10550 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 12 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960191 NA 594 1.77 5550 NA roots 5550 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 13 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960249 NA 598 4.90 15900 NA roots 15900 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 14 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960304 NA 600 2.44 11700 NA roots 11700 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 15 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960529 NA 611 2.40 9650 NA roots 9650 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 16 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960590 NA 619 1.54 5750 NA roots 5750 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 17 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA960860 NA 1595 0.66 3500 NA roots 3500 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 18 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961039 NA 641 3.90 15100 NA roots 15100 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 19 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961087 NA 643 3.10 10750 NA roots 10750 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 20 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961089A NA 647 2.94 11400 NA roots 11400 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 21 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961439 NA 653 3.57 10250 NA roots 10250 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 22 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961565 NA 657 5.99 18250 NA roots 18250 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 23 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961569 NA 659 2.49 6950 NA roots 6950 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 24 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961613 NA 661 2.55 9150 NA roots 9150 NA NA NA NA NA NA
doi_10.25502_CXVV-2C93 99uyt30mprIB 25 Nigeria Ibadan 3.94704 7.37754 TRUE 1999-03-24 NA FALSE FALSE 1 cassava IITA-TMS-IBA961632 NA 665 4.31 15500 NA roots 15500 NA NA NA NA NA NA


The dataset has 30 treatments:

treatments
variety
IITA-TMS-IBA30572
IITA-TMS-IBA4(2)1425
IITA-TMS-IBA8200058
IITA-TMS-IBA9102324
IITA-TMS-IBA920325
IITA-TMS-IBA920326
IITA-TMS-IBA950166
IITA-TMS-IBA960016
IITA-TMS-IBA960035
IITA-TMS-IBA960037
IITA-TMS-IBA960160
IITA-TMS-IBA960191
IITA-TMS-IBA960249
IITA-TMS-IBA960304
IITA-TMS-IBA960529
IITA-TMS-IBA960590
IITA-TMS-IBA960860
IITA-TMS-IBA961039
IITA-TMS-IBA961087
IITA-TMS-IBA961089A
IITA-TMS-IBA961439
IITA-TMS-IBA961565
IITA-TMS-IBA961569
IITA-TMS-IBA961613
IITA-TMS-IBA961632
IITA-TMS-IBA961642
IITA-TMS-IBA961708
IITA-TMS-IBA961800
TMEB1
TMEB117

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


The data are further summarized in the table below

Variable Stats / Values Freqs (% of Valid) Graph Missing
dataset_id [character] 1. doi_10.25502_CXVV-2C
120(100.0%)
 0 (0.0%)
trial_id [character] 1. 99uyt30mprIB
120(100.0%)
 0 (0.0%)
record_id [integer]
Mean (sd) : 60.5 (34.8)
min ≤ med ≤ max:
1 ≤ 60.5 ≤ 120
IQR (CV) : 59.5 (0.6)
 120 distinct values (Integer sequence) 0 (0.0%)
country [character] 1. Nigeria
120(100.0%)
 0 (0.0%)
location [character] 1. Ibadan
120(100.0%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
120(100.0%)
 0 (0.0%)
planting_date [character] 1. 1999-03-24
120(100.0%)
 0 (0.0%)
harvest_date [logical]
All NA's
 120 (100.0%)
on_farm [logical] 1. FALSE
120(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
120(100.0%)
 0 (0.0%)
rep [integer]
Mean (sd) : 2.5 (1.1)
min ≤ med ≤ max:
1 ≤ 2.5 ≤ 4
IQR (CV) : 1.5 (0.4)
1:30(25.0%)
2:30(25.0%)
3:30(25.0%)
4:30(25.0%)
 0 (0.0%)
crop [character] 1. cassava
120(100.0%)
 0 (0.0%)
variety [character]
1. IITA-TMS-IBA30572
2. IITA-TMS-IBA4(2)1425
3. IITA-TMS-IBA8200058
4. IITA-TMS-IBA9102324
5. IITA-TMS-IBA920325
6. IITA-TMS-IBA920326
7. IITA-TMS-IBA950166
8. IITA-TMS-IBA960016
9. IITA-TMS-IBA960035
10. IITA-TMS-IBA960037
[ 20 others ]
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
4(3.3%)
80(66.7%)
 0 (0.0%)
variety_alt [logical]
All NA's
 120 (100.0%)
variety_code [integer]
Mean (sd) : 3124.7 (9801.8)
min ≤ med ≤ max:
5 ≤ 596 ≤ 39632
IQR (CV) : 259 (3.1)
 30 distinct values 0 (0.0%)
dmy_storage [numeric]
Mean (sd) : 2.7 (1.6)
min ≤ med ≤ max:
0.3 ≤ 2.5 ≤ 7.7
IQR (CV) : 2.6 (0.6)
 109 distinct values 2 (1.7%)
fwy_storage [integer]
Mean (sd) : 9020.8 (5384.6)
min ≤ med ≤ max:
750 ≤ 8675 ≤ 24650
IQR (CV) : 7537.5 (0.6)
 97 distinct values 0 (0.0%)
fwy_residue [logical]
All NA's
 120 (100.0%)
yield_part [character] 1. roots
120(100.0%)
 0 (0.0%)
yield [integer]
Mean (sd) : 9020.8 (5384.6)
min ≤ med ≤ max:
750 ≤ 8675 ≤ 24650
IQR (CV) : 7537.5 (0.6)
 97 distinct values 0 (0.0%)
N_fertilizer [logical]
All NA's
 120 (100.0%)
P_fertilizer [logical]
All NA's
 120 (100.0%)
K_fertilizer [logical]
All NA's
 120 (100.0%)
irrigated [logical]
All NA's
 120 (100.0%)
plot_length [logical]
All NA's
 120 (100.0%)
plot_width [logical]
All NA's
 120 (100.0%)