This report describes standardized data for “Assessment of Varieties of Cassava for high yield and disease resistance in an Crossing Block (101 clones) in Ibadan 1994/1995 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 (1996). Assessment of Varieties of Cassava for high yield and disease resistance in an Crossing Block (101 clones) in Ibadan 1994/1995 Breeding Season. International Institute of Tropical Agriculture (IITA). doi:10.25502/XEGN-NJ68

The dataset has 119 records and 24 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 yield_part N_fertilizer P_fertilizer K_fertilizer irrigated plot_length plot_width
doi_10.25502_XEGN-NJ68 95cb101IB 1 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA940217 NA 1183082 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 2 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA940134 NA 1183725 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 3 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA940330 NA 510 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 4 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA930133 NA 1182548 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 5 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava TMEB8 NA 39683 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 6 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA930098 NA 435 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 7 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA930263 NA 1182657 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 8 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA9101682 NA 626873 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 9 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA8900271 NA 808372 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 10 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA30572 NA 5 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 11 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 1 cassava IITA-TMS-IBA940411 NA 1183232 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 12 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava CB-10(80411) NA 3 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 13 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA920348 NA 1178781 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 14 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA930084 NA 1461 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 15 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA940038 NA 698096 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 16 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA71673 NA 258 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 17 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA930298 NA 811198 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 18 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA8902742 NA 813413 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 19 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA930282 NA 1182664 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 20 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA8902715 NA 1378238 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 21 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA4(2)1425 NA 246 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 22 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 1 cassava TMEB9 NA 39684 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 23 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava C-24 NA 1183394 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 24 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava C-27 NA 1102608 roots NA NA NA NA NA NA
doi_10.25502_XEGN-NJ68 95cb101IB 25 Nigeria Ibadan 3.94704 7.37754 TRUE 1995-04-06 1996-03-27 FALSE FALSE 3 cassava IITA-TMS-IBA9100795 NA 1102556 roots NA NA NA NA NA NA


The dataset has 100 treatments:

treatments
variety
71693
C-17
C-24
C-27
C-8
CB-10(80411)
IITA-TMS-BAD930066
IITA-TMS-BAD930079
IITA-TMS-BAD930104
IITA-TMS-BAD930184
IITA-TMS-IBA30572
IITA-TMS-IBA4(2)1425
IITA-TMS-IBA71673
IITA-TMS-IBA8100202
IITA-TMS-IBA8201438
IITA-TMS-IBA8800159
IITA-TMS-IBA8800279
IITA-TMS-IBA8800578
IITA-TMS-IBA8900271
IITA-TMS-IBA8901111
IITA-TMS-IBA8902078
IITA-TMS-IBA8902092
IITA-TMS-IBA8902113
IITA-TMS-IBA8902117
IITA-TMS-IBA8902120
IITA-TMS-IBA8902188
IITA-TMS-IBA8902193
IITA-TMS-IBA8902195
IITA-TMS-IBA8902225
IITA-TMS-IBA8902228
IITA-TMS-IBA8902487
IITA-TMS-IBA8902674
IITA-TMS-IBA8902715
IITA-TMS-IBA8902742
IITA-TMS-IBA8902764
IITA-TMS-IBA8902831
IITA-TMS-IBA9001554
IITA-TMS-IBA9100347
IITA-TMS-IBA9100795
IITA-TMS-IBA9101682
IITA-TMS-IBA9101730
IITA-TMS-IBA9101899
IITA-TMS-IBA920348
IITA-TMS-IBA930078
IITA-TMS-IBA930083
IITA-TMS-IBA930084
IITA-TMS-IBA930098
IITA-TMS-IBA930101
IITA-TMS-IBA930133
IITA-TMS-IBA930153
IITA-TMS-IBA930263
IITA-TMS-IBA930264
IITA-TMS-IBA930275
IITA-TMS-IBA930282
IITA-TMS-IBA930298
IITA-TMS-IBA930319
IITA-TMS-IBA930338
IITA-TMS-IBA930353
IITA-TMS-IBA930357
IITA-TMS-IBA930391
IITA-TMS-IBA940006
IITA-TMS-IBA940038
IITA-TMS-IBA940043
IITA-TMS-IBA940069
IITA-TMS-IBA940134
IITA-TMS-IBA940163
IITA-TMS-IBA940202
IITA-TMS-IBA940217
IITA-TMS-IBA940218
IITA-TMS-IBA940219
IITA-TMS-IBA940256
IITA-TMS-IBA940261
IITA-TMS-IBA940262
IITA-TMS-IBA940263
IITA-TMS-IBA940264
IITA-TMS-IBA940265
IITA-TMS-IBA940272
IITA-TMS-IBA940273
IITA-TMS-IBA940284
IITA-TMS-IBA940290
IITA-TMS-IBA940293
IITA-TMS-IBA940300
IITA-TMS-IBA940330
IITA-TMS-IBA940370
IITA-TMS-IBA940384
IITA-TMS-IBA940385
IITA-TMS-IBA940403
IITA-TMS-IBA940411
IITA-TMS-IBA940414
IITA-TMS-IBA940425
IITA-TMS-IBA940427
IITA-TMS-IBA940453
IITA-TMS-IBA940494
IITA-TMS-IBA940510
IITA-TMS-IBA940519
IITA-TMS-IBA940520
IITA-TMS-IBA940561
IITA-TMS-ONN8700613
TMEB8
TMEB9

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_XEGN-NJ
119(100.0%)
 0 (0.0%)
trial_id [character] 1. 95cb101IB
119(100.0%)
 0 (0.0%)
record_id [integer]
Mean (sd) : 60 (34.5)
min ≤ med ≤ max:
1 ≤ 60 ≤ 119
IQR (CV) : 59 (0.6)
 119 distinct values (Integer sequence) 0 (0.0%)
country [character] 1. Nigeria
119(100.0%)
 0 (0.0%)
location [character] 1. Ibadan
119(100.0%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
119(100.0%)
 0 (0.0%)
planting_date [character] 1. 1995-04-06
119(100.0%)
 0 (0.0%)
harvest_date [character] 1. 1996-03-27
119(100.0%)
 0 (0.0%)
on_farm [logical] 1. FALSE
119(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
119(100.0%)
 0 (0.0%)
rep [integer]
Mean (sd) : 2 (0.8)
min ≤ med ≤ max:
1 ≤ 2 ≤ 3
IQR (CV) : 2 (0.4)
1:38(31.9%)
2:38(31.9%)
3:43(36.1%)
 0 (0.0%)
crop [character] 1. cassava
119(100.0%)
 0 (0.0%)
variety [character]
1. 71693
2. CB-10(80411)
3. IITA-TMS-IBA30572
4. IITA-TMS-IBA4(2)1425
5. IITA-TMS-IBA71673
6. IITA-TMS-IBA8201438
7. IITA-TMS-IBA9101899
8. TMEB8
9. TMEB9
10. IITA-TMS-IBA940217
[ 90 others ]
3(2.5%)
3(2.5%)
3(2.5%)
3(2.5%)
3(2.5%)
3(2.5%)
3(2.5%)
3(2.5%)
3(2.5%)
2(1.7%)
90(75.6%)
 0 (0.0%)
variety_alt [logical]
All NA's
 119 (100.0%)
variety_code [integer]
Mean (sd) : 746399.4 (521403.6)
min ≤ med ≤ max:
3 ≤ 811201 ≤ 1433099
IQR (CV) : 1143440 (0.7)
 100 distinct values 0 (0.0%)
yield_part [character] 1. roots
119(100.0%)
 0 (0.0%)
N_fertilizer [logical]
All NA's
 119 (100.0%)
P_fertilizer [logical]
All NA's
 119 (100.0%)
K_fertilizer [logical]
All NA's
 119 (100.0%)
irrigated [logical]
All NA's
 119 (100.0%)
plot_length [logical]
All NA's
 119 (100.0%)
plot_width [logical]
All NA's
 119 (100.0%)