Killing of Plant Tissue by Low Temper.\ture 



167 



Table 7. Showing Influence of Absorbed Solutions on 



Hardiness. 



Roots 24 hrs. in solu- 

 tions of strength meas- 

 ured by freezing points 

 given below 



TOMATOES 



Glucose (.460) 



Cane Sugar (.435). 

 Glycerine (.430). . . 

 Potassium Nitrate 



(.463) 



Water 



Glucose (.460) 



Cane Sugar (.435). 

 Glycerine (.430). . . 

 Potassium Nitrate 



(.463) 



Water 



Glucose (.460) 



Cane Sugar (.435). 

 Glycerine (.430). . . 

 Potassium Nitrate 



(.463) 



Water 



Glucose (.460) 



Cane Sugar (.435). 

 Glycerine (.430). . . 

 Potassium Nitrate 



(.463) 



Water 



Glucose (.460) 



Cane Sugar (.435). 

 Glycerine (.430). . . 

 Potassium Nitrate 



(.463) 



Water 



Date 



July 

 July 

 July 



July 

 July 

 July 

 July 

 July 



July 

 July 

 July 

 July 

 July 



July 

 July 

 July 

 July 

 July 



July 

 July 

 July 

 July 

 July 



July 

 July 



27/1 

 27, '1 

 27, '1 



27, '1 

 27, '1 

 27, '1 

 27, '1 

 27, '1 



27, '1 

 27, '1 

 28,'l 

 28,'l 

 28,'l 



28,'l 

 28, "1 

 28,'l 

 28, '1 

 28,'l 



28, '1 

 28, '1 

 28,'l 

 28,'l 

 28,'l 



28, '1 

 28, '1 



Tem- 

 pera- 

 ture 



-3.0 

 -3.0 

 -3.0 



-3.0 

 -3.0 

 -2.0 

 -2.0 

 -2.0 



-2.0 

 -2.0 

 -3.5 

 -3.5 

 -3.5 



-3.5 

 -3.5 

 -2.5 

 -2.5 

 -2.5 



-2. 



-2. 



-3 



-3 



-3 



-3 

 -3 



Number Percent- 



of I age 

 Leaves 1 Killed 



84 

 60 

 70 



57 

 65 

 60 



57 

 44 



46 



48 

 48 

 47 

 55 



53 

 43 

 47 

 58 

 52 



43 

 42 

 33 

 37 

 44 



46 

 42 



Glucose (.460), average 



Cane Sugar (.435j, average 



Glycerine (.430), average 



Potassium Nitrate (.463), average 

 Water, average 



Percent 



age 



Killed 



and 

 Partly 

 Killed 



63.0 

 83.3 

 72.8 



100.0 



100.0 



0.0 



24.5 



50.0 



60.8 

 62.5 

 91.6 

 89.3 

 94.5 



98.1 

 76.7 

 59.5 

 13.8 

 9.6 



83 

 11 

 69 

 18 

 61 



,7 



9 



.7 



9 



3 



100.0 

 66.6 



56.8 

 45.9 

 57.6 

 88.5 

 63.5 



67.6 

 88.3 

 88.5 



100.0 



100.0 



0.0 



56.1 



53.6 



73.9 

 72.9 

 95.8 

 95.7 

 100.0 



100.0 



100.0 



70.0 



17.2 



44.2 



100.0 

 16.6 

 69.7 

 35.1 

 61.3 



100.0 

 66.6 



60.6 



58.5 

 69.5 

 94.6 

 71.2 



De- 

 pres- 

 sion 



0.785 

 0.925 

 1.070 



0.880 

 0.700 

 0.785 

 0.925 

 1.070 



0.880 

 0.700 

 0.785 

 0.925 

 1.070 



0.880 



0.70 



0.785 



0.925 



1.070 



0.880 

 0.700 

 0.785 

 0.925 

 1.070 



0.880 

 0.700 



0.785 

 0.925 

 1.070 

 0.880 

 0.700 



