1 62 



Missouri Agr. Exp. Sta. Research Bulletin No. 8 



Table 3. Effect of Watering With Mineral Solutions on 

 Sap Density and Hardiness of Cowpeas. 



Watered 

 With 



Potassium Chloride. . . 



Sodium Chloride 



Magnesium Chloride. 

 Ammonium Chloride.. 



Sodium Nitrate 



Distilled Water 



Potassium Chloride. . . 



Sodium Chloride 



Magnesium Chloride.. 

 Ammonium Chloride.. 



Sodium Nitrate 



Distilled Water 



Potassium Chloride. . . 



Sodium Chloride 



Magnesium Chloride.. 

 Ammonium Chloride.. 



Sodium Nitrate 



Distilled Water 



Potassium Chloride. . . 



Sodium Chloride 



Magnesium Chloride.. 



Date 



June 

 June 

 June 

 June 

 June 

 June 

 June 

 June 

 June 

 June 

 June 

 June 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 



Tem- 

 pera- 

 ture 



Ammonium Chloride... July 



July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 

 July 



Sodium Nitrate. 



Distilled Water 



Potassium Chloride. . . 



Sodium Chloride 



Magnesium Chloride.. 

 Ammonium Chloride.. 



Sodium Nitrate 



Distilled Water 



Potassium Chloride. . . 



Sodium Chloride 



Magnesium Chloride.. 

 Ammonium Chloride.. 



Sodium Nitrate 



Distilled Water 



29,'ll 



29,'ll 



29,'ll 



29, '11 



29,'ll 



29,'ll 



29,'ll 



29,'ll 



29,'ll 



29,'ll 



29,'ll 



29,'ll 



8/11 



8,'ll 



8/11 



8/11 



8/11 



8/11 



9/11 



9/11 



9/11 



9/11 



9/11 



9/11 



20/11 



20/11 



20/11 



20/11 



20/11 



20/11 



21/11 



21/11 



21/11 



21/11 



21/11 



21/11 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3.5 



-3 



-3 



-3 



-3 



-3 



-3 



-2, 



-2, 



-2. 



-2, 



-2. 



-2, 



-2, 



Number 

 Leaves 



75 

 75 

 75 

 75 

 75 

 75 

 75 

 -2.75 

 -2.75 

 -2.75 

 -2.75 

 -2.75 

 -2.75 

 -2 . 75 

 -2.75 

 -2.75 

 -2.75 

 -2.75 



35 



35 



33 



33 



33 



40 



30 



36 



36 



29 



24 



36 



21 



22 



30 



12 



12 



30 



12 



12 



29 



12 



12 



30 



12 



12 



12 



12 



12 



30 



12 



12 



13 



12 



12 



30 



Percent- 

 age 

 Killed 



Potassium Chloride, average. 

 Sodium Chloride, average. . . . 

 Magnesium Chloride, average 

 Ammonium Chloride, average 



Sodium Nitrate, average 



Distilled Water, average 



45.71 

 28.57 

 69.69 



3.03 



9.09 

 77.50 

 56.66 

 30.55 

 66.66 

 58.62 

 70.83 

 91.66 

 33.33 

 36.36 

 85.33 

 83.33 



0.0 

 90.00 

 100.00 

 66.66 

 93.10 

 83.33 



0.0 

 76.66 

 16.66 



8.33 

 58.33 

 16.66 

 58.33 

 80.00 



8.33 



0.00 

 15.39 



8.33 

 16.66 

 86.66 



43.45 

 28.41 

 64.75 

 33.05 

 25.82 

 83.73 



Percent- 

 age 

 Killed 



and 

 Partly 

 Killed 



57.14 



48.57 



100.00 



15.15 



33.33 



77.50 



70.00 



38.88 



77.77 



75.86 



79.16 



97.22 



42.85 



54.54 



100.00 



91.66 



41.66 



100.00 



100.00 



66.66 



100.00 



100.00 



58.33 



83.33 



58.33 



33.33 



75.00 



50.00 



83.33 



93.33 



16.66 



8.33 



30.77 



16.66 



16.66 



93.33 



57.49 

 41.72 

 80.59 

 58.22 

 52.08 

 90.78 



De- 

 pres- 

 sion 



1.05 

 1.065 



.975 

 1.035 

 1.05 



.825 

 1.05 

 1.065 



.975 

 1.036 

 1.05 



.825 

 1.13 

 1.17 

 1.00 

 1.155 

 1.23 



.78 

 1.13 

 1.17 

 1.00 

 1.155 

 1.23 



.78 

 1.13 

 1.17 

 1.00 

 1.155 

 1.23 



.78 

 1.13 

 1.17 

 1.00 

 1.155 

 1.23 



.78 



1.10 

 1.135 



.991 

 1.115 

 1.17 



.795 



