BUD VARIATION IN THE MARSH GRAPEFRUIT. 
99 
Because, as already stated, it is almost impossible, on the basis of 
performance records alone, to make an intelligent estimate of the 
relative value of different trees in any group, except of those which 
vary greatly in the amount of their production, no discussion of that 
nature will be attempted here. The records of the individual trees 
are presented to show the variations that occur between them. Con- 
clusions of relative values are limited to comparisons of the various 
strains and the groups of highest and lowest producing trees in the 
two plats. 
POUNDS 
sso 
\\ ] | — -Nc 
"9 TOTAL CROP 
J> S£COfi/P , 
^ (JTA HO A bo) GP/>oe 
f/fisr 
(/vonr wrt/rsj etrAOE 
/ <? 3 4 S 6 7 8 9 10 // /2 /3 /+ /S /6 t7 /8 /9 20 2/ 22 23 2-4 2S 
/ND/V/DUAL r/?SfS 
P2092IHP 
Fig. 1.— Average annual total crop and the production by the two commercial grades from the individual 
trees in the investigational performance-record plat A of Marsh grapefruit in a grove planted in 1898, 
being a summary of data secured during the 6-year period, 1910 to 1915, inclusive. 
In order to show more clearly the relative variations in production 
that occur in the crops from the individual trees, figures 1 and 2 are 
presented, showing graphically the average total annual production 
of each tree and the production of the two commercial grades. The 
trees are ranked in these diagrams in the same order as in Table III. 
While the average production of the 25 trees in plat A, shown in 
figure 1, varies from 528.1 to 195.8 pounds, 17 of them, or 68 per 
cent, are seen to be within the comparatively uniform range of 430.9 
to 337 pounds. The Hve lowest producing trees in this plat are all 
of the Seedy strain. The trees in plat B, recorded in figure 2, are 
younger than those in plat A, hence then average production is 
much lower. Their range of variation is from 240.1 to 79.3 pounds. 
