BUD VARIATION IN THE EUREKA LEMON. 



63 



injury occasioned by the freeze in January of that year. In February, 

 1914, and again in February, 1917, unavoidable conditions delayed 

 the work so that no ])iekino;s wore made for about 45 days. 



Table IX. — Dates on which fruit tvas picked from the lemon trees of the Eureka variety 

 in the investigational performance-record plat from July, 1911, to June, 1917, inclusive. 



Month. 



July 



August. . . 

 September 



October. . . 

 November. 

 December. 

 January . . 



February. 



March 



April 



May 



June 



First and last date of each picking period. 



1911-12 



July 5 to 12.. 

 Aug. 1 to 7... 

 Aug. 28 to 



Sept. 5. 

 Oct. 2 to 10... 

 Nov. .3 to 10.. 

 Dec. 4 to 11.. 

 Jan. 3 to 6 



Feb. 1 to 7.... 



Mar. 2 to 15... 

 Apr. 1 to 3... 



May 3 to 6. . . 

 May 30 to 

 June 1. 



1912-13 



Julvland2. . 

 Aug. 1 to 3... 

 Aug. 26 to 27. 



Oct. 1 to 9..., 

 Nov. 1 to 6... 

 Dec. 2 to 6... 

 Jan. 2 to 13... 



Feb. 2 to 18. 



1913-14 



Nov. 5 and 6 



Dec. lo 



Jan. 23 



Mar.lOtoll.. 

 Apr. 4 to 7 . . . 



May 20 to 22. . 

 June 13 to 16. 



1914-1.5 



July 9 to 14.. 

 Aug. .') and 6 . 

 Sept. 8 to 10.. 



Oct. 9 to 13.. 

 Nov. 7 to 17.. 

 Dec. 14 to 21. 

 Jan. 1 to 6 



Feb. 12 to 19. 



Mar. 8 to 12... 

 Apr. 6 to 12. . 



May 14 to 19. . 

 June 18 to 21. 



July 21 to 23. 

 Aug. 27 to 31. 

 Sept. 23 to 27. 



Oct. 25 to 28.. 

 Nov. 23 to 27. 

 Dec. 20 to 28. 

 Jan. 26 to Feb, 



1. 

 Feb. 25 to Mar, 



3. 

 Mar. 23 to 27.. 

 Apr. 25 to 



Mav2. 

 May 25 to 31.. 

 June 27 to 30. 



Oct. 27 to 30. 

 Nov. 28 and 29 

 Jan. 2 and 5. 

 Jan. 31 and 

 Feb. 1. 



Mar. 16 to 20 

 Apr. 17 to 19. 



May 26 to 29. 

 June 30 to 

 July 2, 



The excessive number of fruits of the Cull grade recorded in Jan- 

 uary and February, 1913, was largely the result of injury by the 

 January freeze. All the small fruit on the trees at that time was 

 badly frozen, so that there was nothing to be picked for several months 

 afterward, and all the frozen fruit was recorded as of the Cull grade. 



Variable fruits were first recorded in September, 1912. Because 

 of the interruption to the records occasioned by the freeze of the 

 followihg January and the subsequent period during which no fruit 

 was picked from these trees, the data presented for the variable 

 fruits are confined to the three years from July, 1914, to June, 1917, 

 inclusive. In counting the variable fruits found on the different 

 trees the typical fruit for the variety is made the standard, and all 

 variations from it are recorded. This practice has been followed with 

 all the trees, even those of the Pear-Shape strain. 



In explanation of the relatively large number of variable fruits 

 recorded from many of the trees, even of the Eureka strain, it should 

 be said that several of the forms listed vary but slightly from the 

 typical fruit of the variety. In fact, it is believed that some of these 

 forms are continuous variations of fluctuations induced to some extent 

 by certain climatic conditions, and they are characteristic to a 

 greater or less degree of all lemon trees, so far as studied. Three such 

 forms have been designated as collared, protruding blossom end, and 

 ridged. On nearly all the trees under observation from 75 to 90 per 

 cent of the fruits recorded as variable have been of these classes. The 

 more marked variations which show a greater departure from the 

 type of the different varieties, and those forms which have been 



