20 



BULLETIlSr 821, TJ. S. DEPARTMENT OF AGRICULTURE. 



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Table XVI gives the percentages of fruits by grades for each picking 



during the calendar 

 year 1913 in the 

 heated plat 6, an acre 

 of Lisbon lemon trees, 

 as compared with the 

 nonheated plat 8. 

 The percentages of 

 frozen and merchant- 

 able fruits in these 

 plats are shown graph- 

 ically in figure 10. 



Table XVII gives 

 the percentages of 

 fruits by grades for 

 each picking during 

 the calendar year 1913 

 in nonheated plat 3, 

 an acre of Eureka 

 lemon trees, as com- 

 pared with plat 5, 

 inadequately heated, 

 and plat 7, efficient- 

 ly heated. The per- 

 centages of frozen and 

 mierchantable fruits 

 in these plats are 

 shown in figure 1 1 . 



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Fig. 9. — Diagram prepared from the flgm-es presented in Table XV, 

 showing the percentages of merchantable and frozen fruits produced 

 on the nonheated acre of Lisbon lemon trees, plat 1, as compared 

 with the heated acre, plat 4, during the calendar year 1913. 



Table XVI. — Percentages of fruits by grades produced in the heated acre of Lisbon lemon 

 trees, %)lat 6, as compared with the nonheated acre, plat 8, during the calendar year 1913. 



[These percentages are computed from the total number of lemons produced by these plats as shown in 



Tables X and Xn.] 



Grade and condition. 



Date of picking. 



Mar. 6. 



Apr. 2. 



May 14. 



June 27. 



Aug. 13. 



Sept. 15. 



Oct. 27. 



Dec. 8. 



Green grade: 



Not heated 



Heated 



1.77 

 66.44 



1.30 

 22.72 



3.07 

 89.16 





 



96.93 

 10.84 



0) 



69.40 



0) 

 7.10 



0) 

 76.50 



0) 

 7.83 



0) 

 15.66 



0) 

 78.71 



0) 

 7.60 



0) 

 86.31 



0) 

 8.36 



0) 



5.32 



0) 

 85.15 



0) 

 11.69 



0) 

 96.84 



(1) 

 3.16 



0) 







(1) 

 78.24 



0) 

 10.78 



G) 

 89.02 



0) 

 10.98 



0) 

 



(1) 

 37.80 



0) 

 28.96 



66.76 



15.55 



G) 

 17.68 



97.47 

 31.03 



.51 

 29.73 



97.98 

 60.76 



2.02 

 8.94 





 30.40 



98.56 

 69.54 



Tree-Ripe grade: 



Not heated 



Heated 



.41 

 22.97 



Merchantable fruit: 



Not heated 



Heated 



98.97 

 92.51 



Cull grade: 



Not heated 



Heated 



1.02 

 5.37 



Frozen grade: 



Not heated 



Heated 





 2.11 







1 Practically all the fruits in the nonheated plat were frozen and were removed from the trees on March 6. 

 No fruits were picked from this plat until October. 



