Volume 46 Number 4 Article 3
Year 1992 Month 10
Title: Primocane Fruiting Raspberries in the Pacific Northwest and California
Authors: H. Daubeny and C. Fear
Abstract:
Primocane fruiting cultivars have helped stimulate expansion of red raspberry production for the fresh market (5,6). When grown in conjunction with floricane fruiting cultivars, they have extended the harvest season
in most regions where the crop is grown.
This has meant there can be a
constant supply of fresh fruit over periods of four to six months from any
one region.
Supplementing this with fruit from the southern hemisphere, or
vice versa, has made fresh raspberries available throughout the year.
'Heritage' was the first primocane fruiting cultivar to be grown extensively in both the northern and southern hemispheres (4). It continues to be important in most regions, including the Pacific Northwest (PNW) and central
coastal California.
Fruit traits contributing to its adaptability include firm
texture, medium red color, easy release and the ability to remain in good
condition even when overripe.
Plant traits contributing to its adaptability
include production of high numbers of relatively sturdy, upright canes and resistance or tolerance to several potentially damaging diseases, including
raspberry bushy dwarf and the mosaic virus complex (4). It has also shown
some resistance to Phytophthora-incited root rot (4, Daubeny, unpublished). At present, newer primocane fruiting-cultivars are supplementing or replacing commercial plantings of 'Heritage' in the PNW, California and elsewhere.
These newer cultivars, some advanced selections and prospects for further improvement of primocane fruiting cultivars will be considered in this paper.
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