THE BEHAVIOUR OF NORWAY SPRUCE 



143 



ll ll. I . 1 nil . 



a b c d e f 



a b c d e F 



a b c d e f 



--r— slight \ night frost 

 — _ — severe J ^ 



Fig. I. The march of air temperature (at 2.00 p.m.) and precipitation (averages and 

 sums respectively for 5-day periods) at Loendal, Central Jutland, together with the 

 growth of leading shoots oiPicea abies. 



2 '^^Mlk^^. 



'§^m 



\ 



Fig. 2. Drought injury in late-flushing Picea abies. 



