FIG. 14. Effect of different amounts of moisture on the production 



of callus, roots and shoots. 



A. Cuttings callused in sand containing 15 per cent of moisture. B. Cuttings callused 

 in sand containing 10 per cent of moisture. C. Cuttings callused in sand containing 5 per 

 cent of moisture. D. Cuttings callused in sand containing 2J per cent of moisture. 



