lor raspberries were emasculated and 

 pollen was supplied from Nectar- 

 berry, which was also grown indoors. 

 Seeds were set, saved, and stratified. 

 The seedlings were grown in the 

 spring of 1943 and set in the field. 

 Many of them bore some fruit in the 

 spring of 1944. None showed evi- 

 dence of Nectarberry parentage. 

 Among the seedlings many produced 

 an early fall crop. One of them, 

 which later was named Durham 

 probably grew from a partheno- 

 genetic seed of Taylor. Fruit on this 

 seedling began ripening on August 

 10 and continued to mature until the 

 frost period. In the spring of 1945, 

 suckers were taken from this plant 

 and set in another row for further 

 trial. Again, beginning about the 

 middle of August, these transplants 

 produced abundantly that same 

 autumn. The original clump of 

 plants likewise produced an abun- 

 dant fall crop. In the spring of 

 1946, sucker plants again moved to 

 a new location and increased. The 

 newly set plants and the old plants 

 made such a promising yield that it 

 was decided to give the new variety 

 the name Durham and to distribute 

 it. 



The berries of Durham are red, 

 medium in size, of fair quality, and 

 firm. Among the everbearing var- 

 ieties and seedlings tested, Durham is 

 the only one to date which has pro- 

 duced enough of a crop in the fall 

 to promise profitable possibilities. 

 The first blossoms are at the tip, but 

 side branches appear progressively 

 back from the tip so that the bearing 

 area becomes very large. Durham 

 reproduces by suckers which appear 

 in abundance. The young plants, 

 which grow four to five feet in 

 height, seem as susceptible to spur 

 blight as the parent, Taylor. Canes 

 so affected winter kill, but those 

 which are not affected appear to be 

 as hardy as Latham. Annual crops 

 may be expected, which is not al- 

 ways the case with varieties bearing 

 only on overwintering canes. Spur 

 blight, which to date has been con- 

 trolled by the removal of all canes, 

 may thus be avoided without the 

 loss of a year's crop. Durham has 

 been reported as producing well in 

 Ontario, Iowa, North Dakota, and 

 Oregon. 



OTHER RUBUS BREEDING 



Crosses have been made between 

 Taylor raspberry and selections of 





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SK&'j^t 'rf'V-* 



Durham Everbearing raspberry produces abundant early fall crops. 



8 



