Killing of Plant Tissue by Low Temperature 



2^ 



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Table 38. Showing Effect of Removing Scales From the Buds 

 Before Freezing on Their Resistance 

 to Very Low Temperature. 



Variety 



Elberta 



Elberta 



Elberta 



Elberta, wilted .... 

 Elberta 



water-soaked. . . . 

 Elberta, 



normally turgid. 

 Elberta, wilted. ... 

 Elberta, 



normally turgid.. 

 Elberta, wilted .... 

 Elberta, 



normally turgid. , 

 Elberta, 



water-soaked 



Elberta, 



normally turgid . , 

 Elberta, 



water-soaked 



Elberta, 



normally turgid . . 

 01dm" 

 01dm 

 01dm 

 01dm 

 01dm 

 01dm 

 01dm 

 01dm 

 01dm 

 Oldm 

 Oldm 

 Oldm 

 Oldm 



ixon 



i.xon 



ixon 



ixon 



ixon 



ixon 



ixon 



ixon 



ixon 



ixon 



ixon 



ixon 



ixon 



Bell's Oct., slowly... 



Hell's Oct 



Bell's Oct 



Bell's Oct., rapidly... 



Bell's Oct 



Bell's Oct., slowly.. . 

 Bell's Oct., rapidly... 



iiell's Oct 



fiencral Lee, slowly.. 



General Lee. 



Date 



of 



Freezing 



Nov. 

 Nov. 

 Feb. 

 Dec. 



12 

 12 

 23 

 15 



Dec. 15 



Dec. 

 Dec. 



Dec. 

 Dec. 



15 

 23 



23 

 24 



Dec. 24 



Dec. 

 Dec. 



27 

 27 



Dec. 28 



Dec. 



Nov. 



Nov. 



Nov. 



Nov. 



Nov. 



Nov. 



Nov. 



Nov. 



Dec. 



Dec. 



Jan. 



Jan. 



Mar. 



Feb. 



Feb. 



Feb. 



Feb. 



Feb. 



Feb. 



Feb. 



Dec. 



Feb. 



Feb. 



28 



26 



26 



26 



26 



26 



26 



26 



26 



6 



6 



14 



15 



23 



7 



8 



15 



16 



17 



18 



19 



6 



26 



26 



'09 

 '09 

 '10 

 '10 



'10 



'10 

 '10 



'10 

 '10 



'10 



'10 



'10 



'10 



'10 

 '09 

 '09 

 '09 

 09 

 '09 

 '09 

 '09 

 '09 

 '09 

 '09 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 '10 

 lOi 



Tem- 

 pera- 

 ture 



-15 

 -15 

 -18 

 -20.2 



-15 



-15 

 -21.5 



-16 

 -20.5 



-20.5 



-19.7 



-19.7 



-20.5 



-20.5 



-16 



-16 



-21 



-21 



-14 



-14 



-21 



-21 



-22.5 



-18.5 



-21 



-21 



-10 



-20 



-20.5 



-20 



-20.5 



-20 



-18 



-18 



-21 



-20.3 



-21 



Number 



of 



Buds. 



Scales 



Off 



Total number of buds. . . . 

 Average percentage killerl. 



149 

 96 



117 

 79 



39 



89 

 59 



56 

 70 



75 



60 



57 



69 



54 

 100 



98 



80 



79 

 150 



86 

 144 



74 

 196 



50 

 185 

 218 

 156 

 210 

 298 

 267 

 200 

 180 

 121 



76 



69 

 233 



71 



4430 



Number 



of 



Buds. 



Scales 



On 



65 

 133 

 168 



83 



35 



74 

 57 



59 

 79 



75 



77 



48 



72 



56 



87 



83 



137 



92 



151 



96 



198 



76 



132 



290 



223 



262 



140 



107 



239 



353 



249 



200 



195 



245 



100 



220 



111 



5078 



Percent- 

 age 

 Killed. 

 Scales 

 Off 



2.6 

 2.0 



47.8 



59. 



64. 



46. 

 45. 



55. 

 74. 



52. 



93. 



57. 



94. 



79. 

 29. 

 18.4 

 6.2 

 2.5 

 14.6 

 17.4 

 81.2 

 64.8 

 15.7 

 40. 

 96.6 

 75.6 

 57. 

 33.8 

 46.6 



100. 



100. 



100. 

 17. 

 82. 

 66. 

 8. 

 11. 



,3 

 .9 



5 

 1 



Percent- 

 age 



Killed. 



Scales 

 On 



51.0 



1.5 

 1.5 



63.6 



81. 



71. 



75. 

 100. 



76. 

 100. 



32. 



19. 



75. 



45. 



71. 

 74.7 

 73.5 

 13.8 

 17.4 

 62.2 

 47.9 

 98.9 

 96. 

 54.5 

 93.1 

 99.5 

 97.7 

 57.1 

 83.1 

 63.6 

 97.4 

 100. 

 98. 

 40.5 

 93.0 

 45. 

 13.8 

 19.8 



68.5 



