30 



BULLETIN 623, U. S. DEPARTMENT OF AGRICULTURE. 



The average total crop of each of the trees from which performance 

 records have been obtained for six successive seasons is shown in 

 Table II. The percentage of Orchard (or first grade) fruit produced 

 by each tree is also expressed, being figured on the basis of the 

 weight of the crops, and the proportion of variable fruits, by num- 

 ber, is shown. When securing performance records, late bloom fruit 

 and split fruit have been recorded, but such fruits have not been 

 included with the variable fruits. In Table II the trees are ranked 

 arbitrarily according to their average total crops, by weight, without 

 regard to the grade or quality of the fruit or its uniformity. Hence, 

 the position of any given tree in this table is not necessarily a true 

 index of what its relative position would be if the classification 

 were made on the basis of the commercial value of its fruit. The 

 great number of characteristics of trees and fruit which must neces- 

 sarily be taken into consideration in attempting a classification of 

 this sort on the basis of the quality of the fruit and the desirability 

 of the individual trees renders such a system inaccurate and unsat- 

 isfactory when dealing with such a large number of individuals as 

 are represented here. On this account the basis of average annual 

 yield was adopted. 



Table II.- — Summarized statement of the average annual production of 151 Washington 

 Navel orange trees for which detailed performance records were obtained for six years, 

 1910 to 1915, inclusive. 



[Detailed performance records of the trees marked with an asterisk (*) are shown in Table III. Trees 

 marked with a dagger (t) are of the Unproductive strain; all others are of the Washington strain.] 





Tree desig- 

 nation. 



Annual crop production, 

 6-year average. 



Rank. 



Tree desig- 

 nation. 



Annual crop production, 

 6-year average. 



Rank. 



Weight. 



W cha'rd 

 Der - grade. 



Vari- 

 able 

 fruits. 



Weight. 



Num- 

 ber. 



Or- 

 chard 

 grade. 



Vari- 

 able 

 fruits. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 

 14 

 15 

 16 



17 



18 

 19 

 20 

 21 



22 



23 



24 



25 

 26 

 27 

 28 



*3-14-27 



*3-12-28 



3-13-29 



*3-14-26 



3-12-29 



*3-13-28 



*3-12-30 



*3-14-25 



4-27-16 



*7:2-25- 1 



*7:2-37- 1 



10:1-29- 8 



4-28-14 



*10:l-28- 9 



7:2-32- 3 



4-26-13 



7:2-31- 1 



10:1-32- 6 



*4-23- 3 



10:1-29- 2 



7:2-25- 3 



4-18-19 



10:1-31- 7 



10:1-31- 5 



3-13- 4 



*10:1 -31- 4 



10:1-32- 4 



10:1-31-10 



10:1-32-10 



Pounds. 

 394.0 

 379.6 

 354.6 

 350.2 

 343.4 

 341.3 

 325. 2 

 322.7 

 322.7 

 311.2 

 298.8 

 291.7 

 291.3 

 289.1 

 282.6 

 282.0 

 281.1 

 280.6 

 280.5 

 277.9 

 276.4 

 275.7 

 272.5 

 272.0 

 272.0 

 269.0 

 268.4 

 266.2 

 263.2 



771 

 878 

 721 

 711 

 709 

 744 

 643 

 613 

 655 

 654 

 603 

 591 

 643 

 752 

 632 

 601 

 614 

 600 

 564 

 658 

 588 

 633 

 610 

 544 

 553 

 561 

 553 

 580 

 557 



P. ct. 

 81.9 

 78.2 

 80.0 

 85.7 

 80.9 

 81.2 

 77.2 

 85.8 

 81.2 

 84.7 

 82.6 

 81.6 

 83.7 

 83.9 

 78.7 

 84.2 

 83.0 

 85.4 

 83.6 

 79.4 

 83.6 

 79.2 

 81.6 

 85.7 

 82.6 

 84.4 

 83.8 

 82.0 

 83.4 



P. ct. 



0.54 

 .91 



1.28 

 .98 

 .89 

 .81 

 .98 

 .78 

 .76 

 .84 

 .46 



1.02 

 .58 

 .47 

 .44 



1.08 

 .29 

 .38 

 .83 

 .68 

 .31 

 .27 

 .70 

 .55 

 .60 

 .62 

 .63 

 .86 

 .45 



30 



31 



32 



33 



34 

 35 



36 



37 



38 

 39 

 40 



41 



42 



43 



44 



45 



46 



47 



48 

 49 

 50 

 51 

 52 

 53 

 54 

 55 

 56 

 57 

 58 



10:1-30- 9 



*10:l-30- 3 



3-17- 4 



10:1-29-10 



6:1-58- 1 



10:1-32- 9 



3-14- 4 



10:1-29- 3 



*10:l-28- 8 



10:1-29- 6 



10:1-28- 6 



10:1-32- 3 



7:1-53- 1 



10:1-30- 7 



10:1-28- 5 



10:1-29- 7 



10:1-29- 4 



10:1-31- 6 



4-32- 4 



*10:l-28- 4 



4-23- 2 



10:1-32- 7 



7:2-31- 3 



7:2-30- 4 



10:1-29-11 



10:1-30- 5 



10:1-30- 2 



4-18-18 



*4-30- 6 



Pounds. 

 262.9 

 261.3 

 258.0 

 256.8 

 256. 7 

 255. 4 

 253. 

 251.9 

 249.3 

 248.7 

 24S. 1 

 247.9 

 247.4 

 246.1 

 244.9 

 244.5 

 242.4 

 242.4 

 240.7 

 240.3 

 239. 3 

 230.6 

 235.8 

 233.8 

 233.3 

 232.9 

 232.7 

 230.6 

 229.8 



525 

 568 

 560 

 568 

 623 

 566 

 504 

 528 

 575 

 498 

 518 

 516 

 533 

 505 

 '519 

 549 

 466 

 500 

 532 

 515 

 479 

 501 

 508 

 485 

 584 

 427 

 509 

 516 

 452 



P. ct. 

 84.6 

 87.0 

 82.8 

 85.3 

 85.4 

 84.0 

 85.8 

 84.2 

 82.6 

 82.2 

 85.2 

 85.4 

 83.8 

 80.8 

 87.8 

 85.4 

 83.1 

 86.4 

 80.8 

 85.0 

 84.0 

 81.0 

 80.8 

 84.4 

 86.5 

 87.2 

 84.8 

 82.0 

 82.3 



P.ct. 



2.48 

 .35 

 .57 

 .44 

 .40 

 .18 



1.93 

 .76 

 .52 

 .50 



1.06 

 .45 

 .75 

 .85 



1.02 

 .87 



1.57 

 .86 



1.03 



1.03 

 .52 

 .96 

 .85 

 .52 

 .51 



1.17 



2.02 

 .87 



2.39 



