6 Plujfiiological Pre-deternmuition 



Oats. The oats were harvested 3 weeks after sowing. They show a 

 result similar to that of the wheat. The number of germinations is not 

 influenced by the period of soaking, but the dry weight of the seedlings 

 from seeds soaked for 48 hours is G2 per cent, greater than that of the 

 seedlings produced from seeds sown dry. 



Table V. Groivth results. 

 Oats 



White Mustard. The white mustard was harvested after a fortnight's 

 growth. In this case the plants giving the highest dry weight were those 

 from seed soaked six hours. The others form a graded series. The plants 

 from the seeds soaked for 6 hours are about 25 per cent, heavier, but those 

 from seed soaked for 72 hours are about 8 per cent, lighter than those 

 produced from the dry seed. The number of germinations is apparently 

 not affected by the soaking treatment. 



Table VI. Growth, results. 



Dwarf Beans (Phaseolus). These plants were harvested 4| weeks after 

 sowing. Figs. 2 and 3, Plate I, Show the appearance of the series at the 

 time of harvesting. As in the previous experiment, even the shortest 

 period of soaking {i.e. 6 hours) has a marked pre-determining influence in 

 retarding growth in the course of later development to the extent of 

 26 per cent, as compared with the plants produced from seed sown dry, 

 although both the number of germinations and the number of plants 

 resulting are not affected. Preliminary soaking of the seed for 1 day 



