FROST PROTECTION IN LEMON ORCHARDS. 



25 



Table XX. — Total estimated ■production by grades from plat 6, an acre of Lisbon lemon 

 trees, for each picking during the calendar year 1914 — Continued. 



Classification. 



Date of picking. 



Total for 



Aug. IS. 



Sept. 22. 



Oct. 2C,. 



Nov. ;;3. 



Dec. 23. 



year. 



Number of fruits: 



1,540 

 840 



1,020 

 1, 600 



7, 660 

 350 



0, 480 



4yo 



10, 180 

 1,480 



178, 790 





24, 150 









2,380 



2, 020 



8,010 



6,970 



11,600 



202, 940 







Cull grade 



1,610 



450 



200 



130 



240 

 11,900 



8,470 







Total 



3,990 



3,070 



8,210 



7,100 



211,410 







Weight of fruits: 



Lbs. oz. 

 34S 2 

 154 6 



Lbs. oz. 

 244 6 

 295 10 



Lbs. oz. 



1,991 4 



65 10 



Lbs. oz. 



1,770 10 



96 14 



Lbs. oz. 



2,823 12 



378 2 



Lbs. oz. 

 47,711 14 





5, 674 6 







Total mercliantable fruit 



502 8 



540 



2,056 14 



1,867 8 



3,201 14 



53, 386 4 







Cull grade 



256 14 



62 8 



33 2 



20 



35 10 



1,352 8 







Total 



759 6 



602 8 



2.090 



1,887 8 



3,237 8 



54,738 12 







THE BEHAVIOR OF HEATED AND NONHEATED PLATS IN 1914. 



Although practically all the nonheated plats had returned to nor- 

 mal production by January, 1914, in order to collect data on the 

 behavior of trees in the year following the freeze it was decided to 

 continue the individual-tree records in plat 6, a heated acre of Lisbon 

 lemon trees, and in plat 8, which had not been protected in 1913. 

 The production by grades in these plats during the calendar year 

 1914 is shown in Tables XX and XXI. 



Table XXI. — Total estimated production by grades from plat 8, an acre of Lisbon 

 lemon trees, for each picking during the calendar year 1914. 



[The data in this plat were computed from the individual-tree records of ten Lisbon lemon trees. This plat 

 was not heated during the winter of 1913 and was selected for comparison with plat 6 in an orchard of 

 Lisbon lemon trees which was heated during that period. The data from plat 6 for the calendar year 1914 

 are shown in Table XX.] 



Classification. 



Date of picking. 



Total 



for 

 year. 



Jan. 31. 



Mar. 14. 



Apr. 21 



June 3. 



July 9. 



Aug. 31. 



Oct. 31. 



Dec. 30. 



Number of fruits: 



45,310 

 1,490 



40, 750 

 2,540 



25, 140 

 11, 950 



7,230 

 1,090 



7,340 

 510 



9,400 

 920 



3,040 

 2,170 



13,470 

 4,380 



151, 680 



Tree-Ripe grade 



25, 050 



Total merchantable 

 fruit 



46,800 



43,290 



37,090 



8,320 



7,850 



10,320 



5,210 



17,850 



176, 730 







Cull grade 



150 



1,350 



1,210 



400 



510 



760 



300 



270 



4,950 







Total 



46, 950 



44,640 



38,300 



8,720 



8,360 



11,080 



5,510 



18, 120 



181,680 







Weight of fruits: 

 Green grade 



Lbs. oz. 



12, 140 10 



358 12 



Lbs. oz. 



11,160 



640 10 



Lbs. oz. 

 6,525 

 2,324 6 



Lbs. oz. 



1,983 2 



233 2 



Lbs. oz. 



1,836 4 



97 8 



Lbs. oz. 



2,292 8 



191 4 



Lbs. oz. 

 803 12 



502 8 



Lbs.oz. 

 3,601 14 

 1, 143 12 



Lbs. oz. 

 40, 343 2 



Tree-Ripe grade 



5, 491 14 



Total merchantable 

 fruit 



12,499 6 



11, 800 10 



8,849 6 



2,216 4 



1,933 12 



2, 483 12 



1,306 4 



4, 745 10 



45 835 







Cull grade 



29 6 



178 12 



197 8 



60 



71 14 



139 6 



53 12 



58 12 



789 6 







Total.- 



12,528 12 



11,979 6 



9,046 14 



2,276 4 



2,005 10 



2,623 2 



1,360 



4,804 6 



46, 624 6 







