5u 



as i-elativ.- measures of the effectiveness or efficiency of the 

 environmental coraplex fb r the 2-7,'eek period considered, as it 

 acted to produce stem elongation and leaf-product increase, 

 upon the soy-bean seeds employel in this investigatio:i. The 

 values of these two plant indices are of ccurse given in the 

 tables 'n terms of the corresponding average for all cultures 

 considered, employed as.^unity, just as '^ +■'"'= -•-"■-' ^- -p the other 

 relative valixes, and thej' all represent daily rates for tha 

 2"Week period in question. For convenience, the follov.'ing 

 discussion will refer to the graphs rather than to the tables, 

 but of GO":irse tables and graphs both present the same "data, 

 in every case. This discussion will be given u:".der the three 

 followin:~ headings: Correlations between the two plant graphs; 

 Trends of the plant values and theit seasonal averages for the 

 various stations; and Helations between plant and cl'matic gr; 



Correlatinns between th e t'^'o plant graphs . It is realily 

 observed that the -^- c graphs showing relative rates '■-^' 'ncrease 

 in stem height and in leaf-product have a pronounced tendency 

 to exhibit the sar.e general direction of slope from perio' to 



pei^iod, throughout the .season, for all stations. In many cases 

 the two plant graphs not only slope in the same general direction 

 fupward or downward) but their corresponding angles of slope 

 are nearl^- "-'^e .^ar^'^ -■^:'' their corresponding ordinates are about . 

 equal, so that the two graphs nearly coincide for considerable 

 portions of their length. In other words, there appears to have 

 been =i _ x ^^ :>-^ i^ced general agreement between the effectiV6x.-oo 

 cf the surroundings to loroduce stem elonga-^ion and its effec- 

 tiveness to increase the magni'^ude of the leaf-product, as 

 shown by these cultures. If this agreement were per-*:--^ : "■ 



