CONDITION OF PLANTS AT THE END OF 30 DAYS. 



21 



Table IV. — Average green weight per "plant cU the end of 30 days, in percentages of 



weight in normal light. 



Bed and plants. 





Section number and light intensity. 















1,11/93. 



2. n 15. 



3.117. 



4, no. 5, n 2. 



' 1 



6,n. 



Bed A (with fan : 















Corn 



2 



S 



30 



00 



77 



100 



Potato 



34 



65 



3 



130 



129 



100 



Cotton 



12 



23 



114 



68 



60 



100 



Radish 







50 



63 



79 



108 



100 



Mustard 







16 



69 



-o 



70 



100 



Bed B (without fan): 















Corn 











32 



4.5 



94 



100 



Potato 



33 



26 



33 



54 



Oi 



100 



Cotton 



12 



31 



49 



123 



92 



100 



Radish 







SS 



4> 



77 



68 



100 



Mustard 







16 



" 



12-3 



99 



100 



Table V shows the comparative height of the plants at the end of 

 30 days. The average height of the plants in the corresponding sec- 

 tions of beds A and B shows no significant differences. Both beds 

 show clearly an increase in height in light n/7, no, and n 2 and a 

 decided decrease in n 15 and n 93 light. In general the heights 

 recorded in n 7, n/5, and n 2 light exceed those in normal light. 



While the diameter of the stems (Table VI) of many plants is 

 greater in shade than in full light, the averages show that, as a rule, 

 the stem diameter was smaller in reduced light. 



In general the plants showed a more or less gradual decrease in 

 weight and in stem diameter in passing from normal to n 93 light. 

 In height most of the plants in light n 7 to n/2 greatly exceeded those 

 in normal light, and also those in n/15 to n '93 light. Plants of mus- 

 tard and lettuce died in n 93 light, radish in n 93 light in the bed 

 with the fan, and corn in n 93 light in the bed without the fan. 



Table V. — Average height of plants at the end of SO days, in percentages of height in 



normal light. 



Bed and plants. 



Section number and light intensity. 



I.n93. 



2. n. 15. 



3. n 7. 



4. n 5. 



48 



S6 



113 



149 



149 



160 



63 



105 



103 



51 



129 



108 



109 



148 



174 



Oi 



102 



108 



46 



92 



110 



95 



95 



102 



68 



105 



100 



54 



88 



125 



96 



169 



169 



64 



115 



102 



.5. n 2. 



6, n. 



Bed A (with fan): 



Corn 



Potato 



Cotton 



Radish 



Lettuce 



Mustard 



Bed B (without fan): 



Corn 



Potato 



Cotton 



Radish 



Lettuce 



Mustard 



279 



•-> 



120 



*7 





 









 102 



47 



36 











104 

 131 



S9 

 126 

 100 

 102 



120 

 102 

 111 

 123 

 130 

 102 



100 

 100 

 100 

 100 

 100 

 100 



100 

 100 

 100 

 100 

 100 

 100 



