During the spring and summer of 1995, gooseberries, red, white, and black currants, and black currant x gooseberry hybrids were evaluated in Corvallis, Oregon for fruit characteristics and disease incidence. The following is a summary of the plants that had the highest combination ratings of yield, fruit size, and disease resistance during the 1995 evaluation season.
The cultivars are listed in recommended order within each crop category, based on highest quality fruit in combination with the lowest incidence of disease within crop types. The cultivar or selection name, species name, Corvallis inventory number, synonyms, and a brief summary of the origin, and evaluation notes are given below. Be aware that this list was developed with one years data. Further evaluations will be conducted.
This cultivar was early ripening, very high yielding , with very large yellow fruits (5.9 g/berry) which were harvested on 28 June 1995. The plant and fruits were slightly infected with mildew. This cultivar is recommended for commercial production and u-pick.
This selection of the wild northern gooseberry fruited mid to late season, was high yielding, had large red-pink fruit (3.8 g/berry) which were harvested on 14 July 1995. The plant was the most resistant of the gooseberries in the collection to mildew and gray mold. White pine blister rust was not observed on this plant. This selection would be suitable for cultivation as u-pick and commercial production. The Repository is seeking approval to release this clone under the name 'Jahns Prairie.'
This cultivar was late ripening, high yielding, with small dark pink fruits (2.8 g/berry) which were harvested on 18 July 1995. The plant was resistant to gray mold and mildew. This cultivar is recommended for u-pick and commercial production in the U.S but would not match the size of European standards.
This cultivar was mid-season, high yielding. The very small pink fruits (1.5 g/berry) were harvested on 14 July 1995. The plant was very resistant to gray mold and mildew. This cultivar is recommended for u-pick and commercial production in the U.S., but would not match the size of European standards.
This cultivar was late ripening and high yielding. The very small pink fruits (1.9 g/berry) were harvested on 18 July 1995. The plant was resistant to gray mold and mildew. This cultivar is recommended for u-pick and commercial production in the U.S but would not match the size of European standards.
This cultivar was recently acquired by the Repository. The plants were too young for complete evaluation during 1995. The cultivar is early or mid-season ripening with yellow fruit. Mildew was not observed on either shoots or fruits of these young plants. We expect that this cultivar will do well under our climatic conditions.
This cultivar ripened in mid-season and was moderate yielding. The dark blue-black fruits (2.2 g/berry) were harvested on 12 July 1995. This thornless plant was resistant to gray mold, mildew and white pine blister rust. An unusual disorder was observed on Josta leaves. This net-like russeting on the adaxial leaf surface has not been associated with any insect or pathogen. This cultivar is recommended only for u-pick or home gardens in the U.S.
This selection ripened mid-season and was moderate yielding. The small dark fruits (1.7 g/berry) were harvested on 14 July 1995. The plant is vigorous, thorny, and is resistant to gray mold, mildew, and white pine blister rust. This selection may have some value as a home garden plant.
This cultivar ripened very late, was high yielding, with large, persistant fruits (1.0 g/berry). The fruit, borne in very long strigs, were harvested on 28 July 1995. The plant was somewhat susceptible to gray mold and mildew, but had no leaf spot. This cultivar is recommended for u-pick. This cultivar would not be recommended for mechanical harvesting.
This selectioin ripened late, was high yielding, with mid-size, persistant fruits (0.67 g/berry) which were harvested on 19 July 1995. The plant was the most resistant of any red currant to gray mold, mildew, or leaf spot. This selection is recommended for u-pick and for commercial production.
This cultivar was very high yielding, with small, persistant fruits (0.56 g/berry) and was harvested on 24 July 1995. The plant was infected with mildew, and slightly infected with gray mold and leaf spot. This cultivar is recommended for u-pick and for commercial production.
This cutivar ripened late, was high yielding, with mid-size, persistant fruits (0.68 g/berry). It was harvested on 19 July 1995. The plant was resistant to mildew, and slightly infected by gray mold and leaf spot. This cultivar is recommended for u-pick and for commercial production.
This cultivar ripened late, was high yielding, with mid-size, persistant fruits (0.65 g/berry) which were harvested on 19 July 1995. The plant was resistant to gray mold and leaf spot and was slightly infected with mildew. This cultivar is recommended for u-pick and for commercial production.
This cultivar ripened mid-season, was moderately high yielding, and had the largest berries of any evaluated red currants (1.12 g/berry). It was harvested on 7 July 1995. The plant was infected by mildew in early August. The plant was resistant to gray mold and leaf spot. This cultivar is recommended for u-pick.
This cultivar ripens early, is high yielding, with mid-size fruits (0.78 g/berry) which were harvested on 28 June 1995. The plant was slightly infected with gray mold, mildew and leaf spot. This cultivar is recommended for u-pick and for small commercial planting.
This cultivar ripened late, was the highest yield of evaluated white currants. The fruit was mid-size (0.62 g/berry) and was harvested on 11 July 1995. The plant was resistant to mildew and leaf spot and slightly infected with gray mold. This cultivar is recommended for u-pick and commercial planting.
This cultivar ripened late, was high yielding. The fruit (0.57 g/berry) was harvested on 11 July 1995. The plant was resistant to gray mold and was slightly infected with mildew and leaf spot. This cultivar is recommended for u-pick and commercial production.
This cultivar ripened mid-season and was moderately-high yielding. The fruit (0.59 g/berry) was harvested on 7 July 1995. The plant was resistant to gray mold and mildew and was slightly infected with leaf spot. This cultivar is recommended for u-pick and commercial production.
This cultivar ripened in mid-season and was moderate yielding. The large fruit (0.71 g/berry) was harvested on 7 July 1995. The plant was resistant to leaf spot but was slightly infected with gray mold and mildew. This cultivar is recommended for u-pick.
These Slovakian cultivars Blanka and Primus were recently acquired by the Repository. Plants show some promise for fruit quality and disease resistance but were too young for complete evaluation during 1995. These are late ripening. The young plants were resistant to gray mold and leaf spot but were slightly infected with mildew.
This cultivar was early ripening, high yielding , and had large fruits (1.68 g/berry). It was harvested on 30 June 1995. The plant was resistant to mildew, gray mold, and leaf spot. The plant was mildly infected with rust in late summer. This cultivar is recommended for u-pick and small commercial production.
Crandall was introduced in the United States in 1888. The plant has ornamental yellow flowers which reached full bloom on 25 April 1995. This cultivar was late ripening, harvested on 28 July 1995, moderately high yielding with very large fruits (2.17 g/berry). The plant was resistant to mildew, gray mold, leaf spot, and white pine blister rust. The plant was stiffly upright and vigorous. The leaves turned red in the fall. This cultivar is recommended for u-pick.
This cutivar ripened in mid-season, harvested on 5 July 1995, and was high yielding, with large fruits (1.19 g/berry). The plant was resistant to mildew, gray mold, leaf fungal diseases and white pine blister rust. This cultivar is recommended for u-pick and commercial production.
This cutivar ripened very late, harvested on 24 July 1995, and was high yielding, with large fruits (1.04 g/berry). The plant was resistant to mildew, gray mold, leaf fungal diseases and white pine blister rust. This cultivar is recommended for commercial production.
This cutivar ripened very late, harvested on 24 July 1995, was high yielding, with large fruits (1.17 g/berry). The plant was resistant to mildew, gray mold, and leaf spot but was infected with white pine blister rust by mid-August. This cultivar is recommended for commercial production.
This cutivar ripened late, harvested on 19 July 1995, was high yielding, with large fruits (1.36 g/berry). The plant was infected with mildew in August. It was somewhat susceptible to gray mold, leaf spot and white pine blister rust. This cultivar is recommended for commercial production.
This cultivar ripened late, harvested on 19 July 1995, was high yielding, with large fruits (1.27 g/berry). It was somewhat susceptible to gray mold, mildew, and leaf spot. White pine blister rust was not observed on this plant. This cultivar is recommended for commercial production.
These cultivars are known in North America and Europe for their resistance to white pine blister rust. Their gene for resistance comes from R. usuriense Jancz. Each of these cultivars demonstrated similar disease resistance qualities under Corvallis conditions. They ripened early, had a moderate yield, and small fruits (0.69 to 0.75 g/berry). All three were harvested on 29 June 1995. The plants were infected with gray mold, mildew, and leaf spot. No infection of white pine blister rust was observed on any of these plants. These cultivars are recommended where commercial plantings of R. nigrum cultivars are desired but where the pressure of white pine blister rust is high. Their yield and fruit quality do not attain European standards.