

ir"**i 



> 



S. Dunn with dwarf pea plants growing under various colored lights 



eases — An Illustrated Review" (UNH 

 Technical Bulletin 101; U.Maine Bul- 

 letin 595). With graduate students J. 

 Barrett and R. McCrum, he demon- 

 strated the viral nature of several apple 

 diseases. Rich identified a serious 

 problem of garden peas caused by a 

 soil fungus Fusarium solani f. pisi and 

 initiated a breeding program which 

 culminated in a resistant cultivar 

 named 'Sure crop'. 



The University herbarium, a col- 

 lection of some 20,000 dried, mounted 

 and systematically arranged plants, 

 was an invaluable resource for the 

 research of A. R. Hodgdon and others 

 because it provided a workable refer- 

 ence collection for comparing new 



specimens. Hodgdon authored Station 

 Bulletin No. 447, "Woody Plants of 

 New Hampshire," and was involved 

 in projects on spring flowers of New 

 England and New York, and on identi- 

 fication of wild blackberries of New 

 Hampshire. He observed that many 

 weeds, poisonous plants and useful 

 wild plants in the state had been nei- 

 ther collected nor identified. 



S. Dunn investigated the effects of 

 wavelength (color) and intensity of 

 artificial light on plant growth, flower- 

 ing and fruiting, and the influence of 

 varying wavelengths on herbicide ac- 

 tion. Dunn and R. Eggert (Horticul- 

 ture) researched methods for propa- 

 gating woody plants. Sugar maples 



35 



