16 
BULLETIN 
1483, U. S. DEPARTMENT OF AGRICULTURE 
the parent limbs are inherently unstable, as shown by their perform- 
ance records presented in Table 6. 
Table 6. — Records of annual production of progeny trees propagated from limb 
variations of the Flattened strain of the Valencia orange compared with 
records from trees propagated from normal limbs in the same parent trees 
Number of fruits produced by the progeny trees 
Prog- 
eny 
tree 
Flattened strain 
Valencia strain 
No. 
Par- 
ent 
tree 
No. 
Limb 
CM 
CM 
CT> 
CM 
CM 
CM 
05 
CO 
CM 
CM 
a 
cs 
1 
CO 
CM 
02 
id 
CM 
1 
CM 
05 
CM 
"3 
o 
Eh 
CM 
o 
s 
CM 
CM 
CM 
0> 
9 
CM 
cc 
CM 
CM 
CM 
05 
CO 
52 
"3 
o 
13 
o 
ll-li 
ll-2i 
11-3 2 
}l32 
132 
}l62 
162 
(Limb bearing flat- 
\ tened coarse fruits. 
Limb bearing normal 
{S 
6 
52 


18 
68 
29 
53 
11 
5 
64 
178 
3 
13 
1 
22 
31 
51 
176 
89 
38 
82 
61 
128 
98 
86 
30 
295 
183 
244 
26 
134 
424 
50 
98 
68 
47 
13 
89 
1 
20 
137 
347 
177 
483 
297 
321 
379 
697 
512 
1,065 
747 
714 
1,007 
761 
690 
1,065 
804 
747 
1,007 
11-47 
11-48 
11-51 
("Limb bearing flat- 
\ tened fruits. 
Limb bearing normal 
fruits. . . 
U 
6 

29 
18 
5 
4 

2 
14 
8 
57 
33 
1 The flattened fruits borne on trees 11-1 and 11-2 were also coarse in texture like those produced on the 
parent-limb variation. 
1 Tree 11-3 was budded from an unproductive limb variation, as has been described in Table 2. It is 
included here to show its freedom from flattened fruits, although it was propagated from the same parent 
tree as Nos. 1 and 2. 
It will be noted in Table 6 that the progeny trees Nos. 11-1 and 
11-2, which were propagated from a limb variation bearing flat- 
tened coarse fruits, have produced totals of 64 flattened with 697 
normal and 178 flattened with 512 normal fruits, respectively, dur- 
ing the performance-record period. Progeny tree No. 11-3, propa- 
gated from a normal limb in the same parent tree from which 
progeny trees Nos. 11-1 and 11-2 were budded, has produced a total 
of 1,065 fruits, all of which have been of the Valencia strain. 
The two progeny trees Nos 11-47 and 11-48, which were propa- 
gated from a limb variation bearing flattened fruits occurring in 
another apparently normal Valencia tree, have produced totals of 
57 flattened with 747 normal and 33 flattened with 714 normal fruits, 
respectively, during the performance-record period. Some of the 
fruits classified as normal in the performance records were some- 
what flattened, but were not clearly of the Flattened strain, and all 
such oranges have been counted in these studies as normal fruits. 
Typical fruits of the Flattened strain produced by one of these 
progeny trees are shown in Figure 8. 
Progeny tree No. 11-51, which was propagated from a normal 
limb occurring in the same parent tree from which progeny trees 
Nos. 11-47 and 11-48 were budded, has produced a total of 1,007 
fruits during the performance-record period, all of which have been 
typical of the Valencia strain. 
These performance-record data show that the limb variations of 
the Flattened strain under investigation are inherently unstable 
and tend to produce fruits of both Flattened and Valencia strains. 
The production of the progeny trees propagated from these two 
parent Flattened strain limb variations has been lower than that of 
the progeny trees from normal limbs of the same parent trees, and 
the fruits have been of inferior commercial value on account of 
