BUD VARIATION IN THE WASHINGTON NAVEL ORANGE. 



13 



to the packing house, except such samples as may be needed for 

 further study. In view of the fact that during the performance- 

 record work each orange must be handled several times, the greatest 

 possible care is used in picking and handling in order to avoid as far 

 as possible all mechanical injuries. 



Methods for securing commercial individual-tree performance 

 records as a part of the regular fruit-picking operation are described 

 and illustrated in United States Department of Agriculture Farmers' 

 Bulletin No. 794, entitled "Citrus- Fruit Improvement: How to Secure 

 and Use Tree-Performance Records." 



Table I. — Forms-used in investigational vjorh for individual Washington Navel orange- 

 tree performance records, showing the data from tree No. 3-14-27, Vivienda ranch , for 

 the year 1914. 



[Horticultural and Pomological Investigations, B. P. I. form 264-1. The weights are expressed in 



pounds and ounces.] 



A. — Front of sheet, showing the form for record- 

 ing the number and weight of the fruit of the differ- 

 ent sizes. 



Grove, Vivienda. Plat 3. Row 1 4- Tree 27. 

 Variety, Washington Navel. Strain, Washington. 



Orchard grade. 



Standard grade. 



Size. 



Weight. 



Num- 

 ber. 



Size. 



Weight. 



Num- 

 ber. 



288 



1-10 



8 



288 



1- 1 



6 



250 



5- 6 



19 



250 



0-15 



3 



216 



19-14 



59 



216 



2-10 



7 



200 



51-15 



133 



200 



2-12 



7 



176 



126-10 



277 



176 



6-12 



16 



150 



125-12 



238 



150 



4-9 



9 



126 



99- 6 



167 



126 



4- 8 



8 



112 



21-14 



33 



112 



1-4 



2 



96 



8-4 



11 



96 



0- 







80 



0-13 



1 



80 



0- 







B.— Back of sheet, showing the form for recording 

 the variable fruits found on the tree. 



Date, February 24, 1914. Number of boxes, 11\. 

 Culls, 38; weight, 17-4. 



Sports. 



Australian 1 



Wrinkled 



Flattened 



Corrugated 



Protruding 3 



Yellow 



Ridged 3 



Ribbed 



Creased : 



Raised section 



Sunken section 



Raised and sunken 



Yellow section 



Golden nugget 



Abnormal shape 1 



Split navel 7 



Split side 3 



Pear shape 



Elliptical 



Long 



Very smooth 



Coarse - 



Striped 



Ofl bloom 



Note. — Fine quality fruit. 



DESCRIPTIVE NOTES. 



In addition to the performance-record notes, detailed descriptions 

 are made of representative trees and fruits of the different strains 

 and variations in the orchard. Specially prepared forms are used 

 in securing these data, so that all the records obtained will be com- 

 parable and arranged in the same sequence for the purpose of intelli- 

 gent study. These systematic notes are particularly valuable in 

 interpreting the behavior of the individual trees and in obtaining 

 information concerning the correlations of production and the 

 physical characteristics of the individual trees and fruits. 



