Anthracnose-Resistant Strawberry Cultivars for Mid-Atlantic Plasticulture
Kim Lewers, USDA-ARS, Beltsville, MD
Plugs are made from the end of June to 4 July, and planted the first half of August. The field is fertigated with ~12lbs/A of nitrogen (ammonium-nitrate) after one week, every week to 3rd week of September, to a total of ~75 lbs/A. The beds are covered with straw mid-December to mid-March. Frost protection is a combination of misters at 34F and Rainbirds at 32.1F. The field is fertigated with ~5lbs/A of nitrogen per week in April, to between 20-30 lbs/A. Plots are harvested twice weekly from mid-May through mid-June. Rotation is 'Essex' rape - strawberry - corn or sudex - soybeans, with rye-vetch winter covers. |
Table 1. Strawberry cultivar and breeding selection performance at USDA-ARS in Beltsville, Maryland, 2011, in an annual-hill plasticulture production system. |
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Genotype |
Mean lbs/A |
Field rot % |
Marketable yield lbs/A |
Post-harvest rot % |
Yield after storage lbs/A |
Large berry size (g) |
Ave. berry size (g) |
Index (above average) |
Early season |
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AC Wendy |
26,077 |
0.42 |
15,027 |
0.78 |
3,258 |
23.5 |
13.3 |
0 |
Earliglow |
25,925 |
0.19 |
20,946 |
0.68 |
6,761 |
17.0 |
10.6 |
1 |
Northeaster |
23,090 |
0.38 |
14,349 |
0.79 |
3,016 |
30.0 |
16.2 |
0 |
Early-mid season |
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B1828 |
31,652 |
0.19 |
25,551 |
0.82 |
4,566 |
33.6 |
17.8 |
4 |
B1820 |
24,089 |
0.26 |
17,878 |
0.68 |
5,791 |
34.7 |
16.3 |
1 |
B1690 |
22,202 |