WATER VARIATION 



No water 1 cc per seed 2cc per seed 5 cc per seed Daily 



Flooded 



TEMPERATURE VARIATION 



29° F 

 2 weeks after planting 



50° F 



2 weeks after planting 



68° F 

 7 days after planting 



86° F 

 5 days after planting 



110°F 

 2 weeks after planting 



Ij. p. Flory. Boyce Thompson Institute 



GERMINATION INFLUENCED BY MORE THAN ONE FACTOR 



Experiments in which equal numbers of seeds were exposed to different tempera- 

 tures and to varying moisture showed that at a given temperature suitable for ger- 

 mination, there may be too little water or too much water; and that with a suitable 

 amount of water, the temperature may be too low for the seeds to sprout, or it may 

 be too high 



