The stimulation of pollen tube formation ofPinus silvestris by ultra-violet light

1973 ◽  
Vol 9 (4) ◽  
pp. 357-363 ◽  
Author(s):  
L. Zelles ◽  
D. Ernst
BMJ ◽  
1925 ◽  
Vol 1 (3364) ◽  
pp. 1152-1153
Author(s):  
A. Blakiston

BMJ ◽  
1925 ◽  
Vol 2 (3376) ◽  
pp. 495-495 ◽  
Author(s):  
A. Blakiston

BMJ ◽  
1928 ◽  
Vol 1 (3501) ◽  
pp. 237-238
Author(s):  
H. S. Banks

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