Molecular Plant Breeding 2016, Vol.7, No.31, 1
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Table 3 The direct (diagonal) and the indirect effects of the 7 characters on seed yield of safflower accessions
DF
PH
NB
NC
NSC
NSP
HSW
R
DF
0.070
-0.001
0.000
0.014
-0.010
0.104
0.012
0.190*
PH
-0.004
0.012
0.010
-0.050
-0.003
0.270
0.000
0.234*
NB
-0.002
0.002
0.030
-0.050
-0.011
0.120
0.000
0.087
NC
-0.010
0.002
0.015
-0.097
-0.014
0.281
-0.006
0.172*
NSC
0.010
0.000
0.000
-0.021
-0.080
0.200
-0.005
0.103
NSP
0.000
0.000
0.000
-0.033
-0.021
0.890
0.000
0.834**
HSW
0.010
0.001
-0.001
0.007
0.006
0.070
0.106
0.197*
Note: *, ** significant at p≤0.05 and p≤0.01 level, respectively; DF: Days to flowering; PH: Plant height; NB: Number of branches;
NC: Number of capitula; NSC: Number of seed per capitula; NSP: Number of seed per plant; HSW: Hundred seed weight; r:
correlation with seed yield per plant
2 Materials and Methods
The study was implemented at Holetta Agricultural Research Center (38oE and 9oN) during the season of 2012 on
one hundred sixty safflower accessions and two checks (standard Turkana which is spineless and local check
which is spiny; accessions were obtained from Ethiopian Institute of Biodiversity, of which 96.9% are spiny
(Table 1). The experiment was laid out using augmented design. Each accession was sown in plots of two rows,
5m long and 0.3 m between rows. Other cultural practices were followed as per the recommendation. Ten plants
from each accession were randomly selected to determine the phenotypic traits such as days to flowering, plant
height (cm), number of branches per plant, number of capitula per plant, number of seed per capitula, number of
seed per plant, seed yield per plant (g) and hundred seed weight (g). Pearson correlation coefficients were
determined using AGROBASETM statistical software (Agronomix Software Inc., Canada). Path analysis was
done according to the method suggested by Dewey and Lu (1959).
Table 1 Origin and characters of each accession under study
No Accession name Character No Accession Character No Accession
Character No Accession
Character
1Acc. 200485
Spiny
41Acc. 205086 Spiny
81Acc. 208826
Spiny
121Acc. 231427 Spiny
2Acc. 200486
Spiny
42Acc. 205087 Spiny
82Acc. 208827
Spiny
122Acc. 231428 Spiny
3Acc. 200487
Spiny
43Acc. 205088 Spineless
83Acc. 208894
Spiny
123Acc. 231429 Spiny
4Acc. 200488
Spiny
44Acc. 205089 Spiny
84Acc. 208895
Spiny
124Acc. 231430 Spiny
5Acc. 200489
Spiny
45Acc. 205090 Spiny
85Acc. 212471
Spiny
125Acc. 231431 Spiny
6Acc.202944
Spiny
46Acc. 205091 Spiny
86Acc. 212472
Spiny
126Acc. 231432 Spiny
7Acc. 203242
Spiny
47Acc. 205092 Spiny
87Acc. 212473
Spiny
127Acc. 231433 Spiny
8Acc. 203243
Spiny
48Acc. 205093 Spiny
88Acc. 212588
Spiny
128Acc. 231434 Spiny
9Acc. 203244
Spiny
49Acc. 205094 Spiny
89Acc. 212683
Spiny
129Acc. 231435 Spiny
10Acc. 205049
Spiny
50Acc. 205095 Spiny
90Acc. 212684
Spiny
130Acc. 231436 Spiny
11Acc. 205050
Spiny
51Acc. 205096 Spiny
91Acc. 215576
Spiny
131Acc. 231437 Spiny
12Acc. 205053
Spiny
52Acc. 205147 Spiny
92Acc.216851
Spineless
132Acc. 231438 Spiny
13Acc. 205054
Spiny
53Acc. 207453 Spiny
93Acc.216852
Spiny
133Acc. 231439 Spiny
14Acc.205056
Spiny
54Acc. 207454 Spiny
94Acc. 219794
Spiny
134Acc. 231440 Spineless
15Acc.205057
Spiny
55Acc. 207455 Spiny
95Acc. 223285
Spiny
135Acc. 231441 Spineless
16Acc.205058
Spiny
56Acc. 207456 Spiny
96Acc. 227842
Spiny
136Acc. 231442 Spiny
17Acc.205059
Spiny
57Acc. 207457 Spiny
97Acc.227843
Spiny
137Acc. 231443 Spineless
18Acc.205060
Spiny
58Acc. 207458 Spiny
98Acc.227844
Spiny
138Acc. 231444 Spiny
19Acc.205061
Spiny
59Acc. 207459 Spiny
99Acc.227845
Spiny
139Acc. 231445 Spiny
