238 



Phj/dologlcal Predetermination 



Table VI. 

 Harvest results. 



Number of seeds sown 

 Number of plants pro- 

 duced 



Average length of stem GO cm. G8-Scm. 74-7 cm. 



per i^lant 

 Average number of 18-G 



internodes per plant 

 Average number of pods G 



per plant 

 Average number of pods 5-7 



per main stem 

 Average number of 15-8 



seeds per plant 

 Number of successive — 



inflorescences 



24 -7 



13-8 



G-5 



43-8 



89 



11 



394 

 -41 



21-8 

 8-2 

 6-4 



20-7 



45 



50 

 8f)9 

 + 31 



Percentage of plants 24 



that were branched 

 Percentage of pods fully — 



ripe at harvest 

 Percentage of plants in 74 



which the pods were 



fully ripe at harvest 

 Total yield (i.e. total 663 



number of seeds pro- 

 duced) 

 Percentage increase or — 



decrease in total 



yield of e.xperimental 



plants as compared 



with the controls 



by the fact that the plants from the treated seed have a much wider 

 spacing owing to the large mortality amongst them. 



Wollny's(i2) experiments extended over a number of years and his 

 attention was directed more to the effect upon final yield of the soaking 

 treatment of the seeds. The following tables give a detailed summary 

 of his results. 



The most noteworthy features of these results were firstly, that 

 increased yields of grain were obtained in every case (with the exception 

 of Winter Rye) as the result of the soaking treatment; and secondly, 

 that a reverse effect, i.e. a decreased yield, was obtained when the swelling 

 of the seeds was carried out in excess of water. 



Since the publication of the work of Kraus and WoUny we have not 

 been able to find in the literature any reference to the subject until 



