Articles
Next steps in breeding for yield in raspberries
Article number
1277_2
Pages
11 – 16
Language
English
Abstract
Research and breeding for yield components has indicated that cultivars could have the potential to produce 66 t ha‑1. This is realized when fruit size, number of fruits per lateral, number of laterals per cane and number of canes m‑2 are combined.
Raspberries consistently produce many more fruit bud initials than ever produce fruit.
These initials act as photosynthetic sinks, so the issue for the future is to produce and move the carbohydrates to those initials.
When the yields of raspberries and blackberries are compared blackberries consistently yield more than raspberries.
A comparison of the two species indicated that blackberries produce fewer vegetative canes, retain their leaves longer, and have a better photosynthetic profile than raspberries.
The potential to improve these traits in raspberries is discussed.
Raspberries consistently produce many more fruit bud initials than ever produce fruit.
These initials act as photosynthetic sinks, so the issue for the future is to produce and move the carbohydrates to those initials.
When the yields of raspberries and blackberries are compared blackberries consistently yield more than raspberries.
A comparison of the two species indicated that blackberries produce fewer vegetative canes, retain their leaves longer, and have a better photosynthetic profile than raspberries.
The potential to improve these traits in raspberries is discussed.
Authors
A. Dale
Keywords
Rubus idaeus, blackberries, yield, photosynthesis, root buds, leaf senescence
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