Table 3. Interaction between Hght and indoleacetic 

 acid (lAA) in promotion of extension of 'Meteor' pea stem 

 sections. Basal medium: 1 per cent sucrose in phosphate 

 buffer. 



Significant difference between means: 0.40 (P = .05), 

 0.53 (P = .01), 0.68 (P = .001). 



Table 4. Interaction between light and 1-naphthaleneacetic 

 acid (NAA) or 2,4-dichlorophenoxyacetic acid (2,4-D) in promo- 

 tion of extension of 'Meteor' pea stem sections. Basal medium: 1 

 per cent sucrose in phosphate buffer. 



Significant difference between means: 0.28 (P = .05), 0.37 

 0.01), 0.48 (P = .001). 



P = 



Table 5. Interaction between light and gibbcrcllic 

 acid in promotion of extension of 'Meteor' pea stem sec- 

 tions. Basal medium: 10 Mg/ml lAA + 1 per cent sucrose 

 in phospiiatc buffer. 



Significant difference between means: 0.38 (P = 0.05), 

 0.50 (P = .01), 0.65 (P = .001). 



