96 LUTHER BURBANK 



The Inplusnck of Kntibonmkm 



But meantime this plant, like every (i'!i 

 living nrjEfanism, wms of course Mihi'-rt to t!< 

 directly .stiiniilative influence of its tn i • t ' 

 Its liereditary traditions had develop* i ^ ) 

 may speak of as an instinctive tendency to gro\ 

 at a given time of year regardlen of clip 

 conditions; but they had also given it an e(iu».. 

 powerful tendency to respond to the stimnltiH < 

 cold weather, and to become produc ' 

 merely in the sMfon of winter but undn 

 climatic conditions of winter. 



In other words, the combined influences of 

 heredity and uf immediate environment were 

 here as always influential in detennining the con- 

 ditions of plant growth. 



But, whereas in New Zealand the environment 

 of winter — characterised by cold temperature — 

 coincided with the calendar months of Jmu, 

 July, and August, in the new environment of 

 California the conditions of winter were shiftcil 

 to the calendar months of December. January. 

 and February. So the two instincts, one calling 

 for productivity in June, July, and August, and 

 the other for productivity during cold weather, 

 were now no longer coincident, but made them- 

 selves manifest at widely separated seasons, thus 



