BUD SELECTION IN THE VALENCIA OEANGE 
19 
FLUTED STRAIN 
The trees of the Fluted strain of the Valencia orange variety do 
not differ from those of the Valencia strain in observable character- 
istics of the foliage or habit of growth. 
The fruits borne by the trees of this strain are very distinct in 
appearance as compared with those produced by trees of the Valen- 
cia strain, on account of shallow parallel furrows occurring in the 
surface of their rinds. These furrows give the fruits a fluted 
appearance, which distinguishes them clearly from the smooth, even 
rinds of normal oranges. 
The Fluted strain of the Valencia orange includes several minor 
or substrains which are identified by the color, size, shape, or other 
characteristic of the fruits in addition to the furrows. For example, 
in one substrain the trees bear fluted fruits with a yellowish green 
color as compared with the reddish yellow color of the typical fruits 
of this strain. The trees of another substrain produce very small 
and rather deeply furrowed fruits having persistent styles. 
The performance records of four progeny trees propagated from 
Fluted strain limb variations which were found in two otherwise 
normal Valencia parent trees in the original Valencia performance- 
record plots are shown in Table 8. These data show that the two 
progeny trees Nos. 10-35 and 10-36 have produced totals of 516 
fluted, with 219 normal and 861 fluted with 793 normal fruits, 
respectively. In the case of progeny trees Nos. 11-9 and 11-10 the 
data show a total yield of 1,026 fluted with 973 normal and 730 
fluted with 556 normal fruits, respectively, for the performance- 
record period. Typical fruits of the Fluted strain produced by one 
of the progeny trees are shown in Figure 10. 
Table 8. — Records of annual production of progeny trees propagated in 1915 
from Unit) variations of the Fluted strain of the Valencia orange 
Source of buds 
Number of fruits produced by progeny trees 
Prog- 
eny 
tree 
Par- 
ent 
tree 
Fluted strain 
Valencia strain 
No. 
,_, 
_, 
<m 
OQ 
<N 
(M 
<N 
<m 
<M 
<N 
<M 
(N 
<M 
No. 
A 
s, 
^ 
>o 
C3 
A 
A 
s 
a 
05 
O 
O 
OS 
OS 
Ci 
h 
03 
OS 
O 
o 
C5 
OS 
H 
Eh 
10-35 
/Limb bearing Fluted 
r s 
15 
12 
65 
1 
415 
516 
14 
63 
48 
27 

67 
219 
735 
10-36 
/ 107 \ fruits. 
\ 8 
37 
42 
249 
11 
514 
861 
5 
101 
116 
143 
347 
81 
793 
1,654 
11-9 
} 136 do 
1 12 
105 
21 
234 
91 
563 
1, 026 
1 
45 
165 
459 
141 
162 
973 
1,999 
11-10 
I 6 
90 
35 
83 
51 
465 
730 
4 
41 
150 
253 
43 
65 
556 
1,286 
The parent-limb variations in both instances produced both fluted 
and normal fruits, but no record was kept of the proportion of each 
during the original performance-record work with the parent trees. 
Subsequent to the propagation of these four progeny trees many 
other Fluted strain limb variations and entire trees bearing wholly 
Fluted strain fruits have been discovered in different Valencia 
orchards. 
It is apparent from the performance records of these Fluted 
progeny trees that the parent-limb variations and progeny trees 
