DORMANCY IN SEEDS 

 PINUS RIGIDA 



103 



.^^ Vo GERMINATION 

 100 _ 



I MONTH 



CONTROL 



Figure 37. The effect of stratification at 5° C (41° F) for one, two, and three months 

 on germination of the seeds of Pinvs rigida. Broken Une shows the percentage of good 

 seeds as revealed by embryo tests. 



