ioo r A 3**==T.5 



80 



60 



40 



20 



Low Stress 

 (average 90% 



100 i- 



Regular 

 (81) 



B Moderate Stress 

 (average 54 % 



..k Fresh (65) 



Frozen (57) 



4/4 



4/25 



5/16 



6/6 



6/27 



4/4 4/25 5/16 6/6 6/27 



100 I- C 



Extreme Stress 

 (average 39% 



Fresh 

 (49) 



100 i- 



60 



40 



20 



D All Stress Levels 

 (average 61%) 



Fresh (70) 



Frozen (60) 



V. 



X^-Snow (58) 



\ 



^'Reg. (56) 



4/25 5/16 



4; 4 



4/25 5/16 



6/6 



6/27 



PLANTING DATE 



PLANTING DATE 



Figure 2. — First-season survival of Engelmann spruce planting stock under four storage regimes, 

 planted throughout the spring season. Figures in parentheses are average survivals over all planting 

 dates. Significance differences attributable to storage are shown by * and ** (p = 0.05 and 0.01, re- 

 spectively) and connecting arrows. 



Table 2.— Analysis of variance table, Engelmann spruce, 1972 

 study 



Source 



DF 



MS 



F 



Prob. <F 



Blocks 



2 



0.4222 



8.3470** 



0.0007 



Storage 



3 



.2528 



4.9969** 



.0031 



Date 



4 



1.0478 



20.7144** 



.0001 



Stress 



2 



7.9724 



157.6035** 



.0001 



Storage X date 



12 



.2704 



5.3453** 



.0001 



Storage X stress 



6 



.0772 



11.5252 



.1750 



Date X stress 



8 



.0887 



1.7544 



.0926 



Storage X date X stress 



24 



.0300 



.5925 



.9308 



Error 



118 



.0506 







"Significant at the 99 percent level of confidence. 



Table 3.— Abnormal terminal buds on Engelmann spruce by 

 storage and planting date, 1971-72 



Stock storage treatment 



date Snow Regular Fresh Frozen 



Percent 



April 4 9.3 12.4 14.6 2.2 



April 25 4.0 8.0 27.5 3.0 



May 16 22.2 5.3 32.4 2.6 



June 6 5.3 6.6 28.4 1.3 



Average 10.2 8.1 26.7 2.3 



3 



