Diallel Analysis

OPSTAT provides the analysis of diallel crosses laid out in Randomised Block Design using Griffing’s (1956) approach (all four methods).

Data Arrangements

The data arrangement schemes for Griffing’s approach are explained for the analysis of data for a full diallel, i.e., Parents, F1s, and reciprocal F1s. If 8 parents (v = 8) are involved in a full diallel producing 64 crosses, arrange the data so that all the crosses with parent 1 come first: 1 x 1, 1 x 2, 1 x 3, and so on. Method-2 excludes data for reciprocal F1s, while Method-3 includes them, and Method-4 includes only F1s.

Arrangement of Data in File or Text Area

Data arrangement in a text area of the web page for diallel analysis using Griffing’s approach is as explained above. Enter the data of all the replications for the first cross (1 x 1) in the first line, separating replications by at least a space or tab. Enter the data for the second cross (1 x 2) in the second line, and so on for all crosses. If analyzing more than one character, enter the data of the second character after the first in the same manner.

The data arrangement in the text area for Method 1 looks like the following:

Sample Data input file for Diallel Crosses

Fig: Sample Data Input File for Diallel Crosses

The data arrangement for Method 1 looks like:

 
       Sample data arrangement of Method-1 having 8 Parents, 4 replication and 1 character
Crosses	R1	R2	R3	R4
1 X 1	104.86	84.32	76.92	76.48
1 X 2	88.66	105.04	80.8	73.54
1 X 3	109.76	78.22	74.52	99.52
1 X 4	128.1	123.84	92.56	115.28
1 X 5	128.36	119.84	103.24	129.72
1 X 6	74.4	70.86	60.94	68
1 X 7	91.82	99.18	118.88	120.68
1 X 8	48.08	62.1	58.54	41.84
2 X 1	88.7	69.1	76.8	88.16
2 X 2	88.02	106.52	89.82	108.68
2 X 3	110.16	116.26	99.76	120.12
2 X 4	101.26	80.22	82.84	88.36
2 X 5	91.52	113.96	87.26	106.98
2 X 6	59.06	65.62	81.62	86.76
2 X 7	84.16	109.74	102.14	94.52
2 X 8	96.92	91.44	79.86	74.38
3 X 1	75.28	124.74	94.56	114.34
3 X 2	112.48	92.76	90.62	122.36
3 X 3	77.94	71.34	77.52	69.48
3 X 4	111.44	119.96	84.76	86.42
3 X 5	96.88	100.86	86.88	92.52
3 X 6	109.86	98.16	93.26	102.26
3 X 7	117.2	100.28	116.16	112.52
3 X 8	109.68	116.48	123.92	120.86
4 X 1	124.26	132.48	114.38	105.34
4 X 2	92.18	82.16	81.66	101.24
4 X 3	98.08	90.94	96.2	125.48
4 X 4	80.82	106.54	83.28	95.92
4 X 5	86.2	76.36	79.06	99.52
4 X 6	103.14	109.66	90.98	119.4
4 X 7	53.4	60.86	74.46	69.08
4 X 8	53.86	48.3	40.64	44.62
5 X 1	109.74	99.56	110.18	125.68
5 X 2	109.94	117.52	95.56	88.54
5 X 3	89.56	94.56	83.66	85.28
5 X 4	80.96	71.98	91.34	89.28
5 X 5	59.96	52.48	52.98	50.98
5 X 6	98.46	73.1	89.18	75.86
5 X 7	81.36	72.82	89.82	83.74
5 X 8	86.62	94.18	90.32	108.16
6 X 1	72.92	76.28	61.66	64.48
6 X 2	58.56	86.72	65.26	74.64
6 X 3	104.18	100.24	85.12	108.76
6 X 4	109.44	97.74	121.1	106.38
6 X 5	81.58	95.52	84.48	90.28
6 X 6	96.44	98.82	99.14	107.16
6 X 7	140.5	125.96	113.02	106.96
6 X 8	55.08	52.88	42.92	64.08
7 X 1	119.56	90.22	113.92	113.36
7 X 2	106.52	84.38	83.92	76.46
7 X 3	98.54	103.38	119.48	112.38
7 X 4	58.92	54.78	63.92	52.98
7 X 5	70.28	79.84	80.42	84.46
7 X 6	109.84	137.92	94.08	120.84
7 X 7	91.44	99.66	89.46	83.28
7 X 8	116.28	129.5	142.84	112.46
8 X 1	47.46	43.26	56.72	47.44
8 X 2	85.82	80.22	76.3	90.24
8 X 3	105.26	120.38	112.26	123.7
8 X 4	46.2	41.82	52.66	46.28
8 X 5	80.52	98.56	90.84	103.36
8 X 6	45.72	58.62	70.82	65.8
8 X 7	105.5	120.94	114.06	132.18
8 X 8	91.78	84.82	69.92	81.48
Note use only numer Data. Donot Enter 1 X 2, 1 X 3 ... and R1, R2, R3 etc

The data arrangement for Method 2 looks like:

       Sample data arrangement of Method-2 having 8 Parents, 4 replication and 1 character
Crosses	R1	R2	R3	R4
1 x 1	104.86	84.32	76.92	76.48
1 x 2	88.66	105.04	80.8	73.54
1 x 3	109.76	78.22	74.52	99.52
1 x 4	128.1	123.84	92.56	115.28
1 x 5	128.36	119.84	103.24	129.72
1 x 6	74.4	70.86	60.94	68
1 x 7	91.82	99.18	118.88	120.68
1 x 8	48.08	62.1	58.54	41.84
2 x 2	88.02	106.52	89.82	108.68
2 x 3	110.16	116.26	99.76	120.12
2 x 4	101.26	80.22	82.84	88.36
2 x 5	91.52	113.96	87.26	106.98
2 x 6	59.06	65.62	81.62	86.76
2 x 7	84.16	109.74	102.14	94.52
2 x 8	96.92	91.44	79.86	74.38
3 x 3	77.94	71.34	77.52	69.48
3 x 4	111.44	119.96	84.76	86.42
3 x 5	96.88	100.86	86.88	92.52
3 x 6	109.86	98.16	93.26	102.26
3 x 7	117.2	100.28	116.16	112.52
3 x 8	109.68	116.48	123.92	120.86
4 x 4	80.82	106.54	83.28	95.92
4 x 5	86.2	76.36	79.06	99.52
4 x 6	103.14	109.66	90.98	119.4
4 x 7	53.4	60.86	74.46	69.08
4 x 8	53.86	48.3	40.64	44.62
5 x 5	59.96	52.48	52.98	50.98
5 x 6	98.46	73.1	89.18	75.86
5 x 7	81.36	72.82	89.82	83.74
5 x 8	86.62	94.18	90.32	108.16
6 x 6	96.44	98.82	99.14	107.16
6 x 7	140.5	125.96	113.02	106.96
6 x 8	55.08	52.88	42.92	64.08
7 x 7	91.44	99.66	89.46	83.28
7 x 8	116.28	129.5	142.84	112.46
8 x 8	91.78	84.82	69.92	81.48
Note use only numer Data. Donot Enter 1 X 2, 1 X 3 ... and R1, R2, R3 etc

The data arrangement for Method 3 looks like:

       Sample data arrangement for Method-3 is 
Crossess	R1	R2	R3
1 X 2	123	124	124
1 X 3	125	125	123
1 X 4	126	126	125
1 X 5	123	124	122
1 X 6	123	123	122
1 X 7	121	125	125
1 X 8	121	122	120
2 X 1	124	124	122
2 X 3	119	120	119
2 X 4	121	120	122
2 X 5	120	120	121
2 X 6	124	122	121
2 X 7	121	119	122
2 X 8	118	119	119
3 X 1	125	122	121
3 X 2	127	126	126
3 X 4	122	123	121
3 X 5	118	120	118
3 X 6	121	120	121
3 X 7	127	126	127
3 X 8	126	124	124
4 X 1	127	128	127
4 X 2	126	126	125
4 X 3	125	125	125
4 X 5	120	121	121
4 X 6	124	124	124
4 X 7	121	124	123
4 X 8	122	125	124
5 X 1	123	123	123
5 X 2	126	125	127
5 X 3	126	126	125
5 X 4	125	124	125
5 X 6	126	126	125
5 X 7	122	122	123
5 X 8	128	123	120
6 X 1	127	127	127
6 X 2	127	124	125
6 X 3	123	123	122
6 X 4	126	128	125
6 X 5	126	126	126
6 X 7	126	127	125
6 X 8	124	125	126
7 X 1	127	127	128
7 X 2	125	124	125
7 X 3	126	127	126
7 X 4	126	126	126
7 X 5	124	125	124
7 X 6	126	126	126
7 X 8	125	126	124
8 X 1	125	125	125
8 X 2	124	122	122
8 X 3	122	122	122
8 X 4	122	123	121
8 X 5	122	121	122
8 X 6	124	124	124
8 X 7	123	124	122
Note use only numer Data. Donot Enter 1 X 2, 1 X 3 ... and R1, R2, R3 etc

Procedure of Analysis (Griffing's Approach)

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