kim lewers, usda-agricultural research service beltsville, maryland
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Kim Lewers, USDA-Agricultural Research Service Beltsville, Maryland. ‘Earliglow’. ‘ Flavorfest ’. Plasticulture. ‘Allstar’. ‘Ovation’. ‘Earliglow’. ‘ Flavorfest ’. Anthracnose-resistant. ‘Allstar’. ‘Ovation’. Plugs are made from end of June to 4 July. - PowerPoint PPT PresentationTRANSCRIPT
Kim Lewers, USDA-Agricultural Research Service Kim Lewers, USDA-Agricultural Research Service Beltsville, MarylandBeltsville, Maryland
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
PlasticulturePlasticulture
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
Anthracnose-resistantAnthracnose-resistant
•Plugs are made from end of June to 4 July.•Plugs are planted in the field the first half of August.•The field is fertigated with ~12lbs/A of nitrogen 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.
Influence of Nitrogen, Phosphorus, and Potassium on the Severity of Strawberry Anthracnose Crown Rot
B.J. Smith United States Department of Agriculture, Agricultural Research Service Southern Horticultural Laboratory, Small Fruit Research Unit Poplarville, MS 39470 USA
Seven (7) nitrogen sources at three (3) rates:•Higher N rates led to more anthracnose.•Among plants getting higher N rates, those treated with Ca(NO3)2 were the most disease tolerant. •Plants treated with nitrate nitrogen sources, including NH4NO3, had less severe anthracnose symptoms than plants receiving nitrogen from other ammonium sources.
Take-home: Nitrate forms mean less anthracnose than ammonium forms.
•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.
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
Marketable yield is calculated by harvesting the good fruit and rotten fruit into two buckets and weighing them separately.
Total yield at 17,000 plants/A
Postharvest yield measured at 1 and 2 weeks
USDA-ARS Strawberry replicated evaluation data, 2012. Annual plasticulture production system.
Total yield Marketable yieldPost-harvest yield
(Lbs/A) Berry size (g/berry)
Genotype Lbs/A % Lbs/A 1 wk 2 wks Large Average
B1702 57,795a 56 32,298abcd 25,595 10,563 41 18
B1788 44,979b 86 38,672a 31,044 17,917 31 16
B1753 44,349bc 69 30,433abcde 23,744 15,718 44 20
B1463 L 43,762bcd 86 37,446ab 32,728 22,261 28 13
B1754 42,247bcde 80 33,889abc 24,680 14,182 49 20
Flavorfest 41,747bcde 82 34,382abc 30,328 13,461 49 21
B1463 40,080bcdef 84 33,838abc 29,467 20,303 30 14
B1458 40,025bcdef 85 33,824abc 27,934 14,977 36 20
Eros 38,422bcdef 71 27,216cdefgh 21,575 15,794 41 21
B1915 36,912cdefg 93 34,329abc 31,767 24,252 36 16
B1580 36,062defg 88 31,556abcde 28,275 19,215 40 16
B2079 35,820efgh 85 30,323abcde 26,361 13,714 32 16
Allstar 33,149fghi 81 26,996cdefgh 24,716 17,397 34 16
Average 33,036 81 26,890 22,634 14,444 17
B1818 30,631ghij 87 26,633cdefghi 20,464 15,498 53 24
B1610 30,569ghij 87 26,500cdefghi 21,897 14,059 65 21
Northeaster 30,265ghij 94 28,335cdefg 26,591 16,892 42 13
B1828 29,645ghijk 86 25,353defghij 18,427 10,586 54 24
B1384 28,205hijk 82 23,254efghijk 16,319 2,448 34 18
B1806 27,025ijkl 75 20,332ghijk 16,826 12,920 37 16
B1805 26,917ijkl 79 21,168ghijk 20,481 17,594 40 17
B1820 24,311jkl 81 19,697hijkl 15,918 10,650 40 17
Ovation 24,189jkl 90 21,874fghijk 21,292 18,267 40 16
B2068 22,083klm 92 20,207ghijk 18,834 15,204 45 20
B1690 21,935klm 81 17,692jkl 13,502 10,150 43 15
Earliglow 20,307lm 90 18,356ijkl 16,800 13,923 23 10
B1590 20,200lm 81 16,275kl 12,917 9,903 57 21
B2066 16,001m 75 12,031l 9,692 6,082 27 13
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
Average berry size is the average of all those averages.
The average berry size for each harvest was recorded.
Large berry size is the largest of those averages.
USDA-ARS Strawberry replicated evaluation data, 2012. Annual plasticulture production system.
Total yield Marketable yieldPost-harvest yield
(Lbs/A) Berry size (g/berry)
Genotype Lbs/A % Lbs/A 1 wk 2 wks Large Average
B1702 57,795a 56 32,298abcd 25,595 10,563 41 18
B1788 44,979b 86 38,672a 31,044 17,917 31 16
B1753 44,349bc 69 30,433abcde 23,744 15,718 44 20
B1463 L 43,762bcd 86 37,446ab 32,728 22,261 28 13
B1754 42,247bcde 80 33,889abc 24,680 14,182 49 20
Flavorfest 41,747bcde 82 34,382abc 30,328 13,461 49 21
B1463 40,080bcdef 84 33,838abc 29,467 20,303 30 14
B1458 40,025bcdef 85 33,824abc 27,934 14,977 36 20
Eros 38,422bcdef 71 27,216cdefgh 21,575 15,794 41 21
B1915 36,912cdefg 93 34,329abc 31,767 24,252 36 16
B1580 36,062defg 88 31,556abcde 28,275 19,215 40 16
B2079 35,820efgh 85 30,323abcde 26,361 13,714 32 16
Allstar 33,149fghi 81 26,996cdefgh 24,716 17,397 34 16
Average 33,036 81 26,890 22,634 14,444 17
B1818 30,631ghij 87 26,633cdefghi 20,464 15,498 53 24
B1610 30,569ghij 87 26,500cdefghi 21,897 14,059 65 21
Northeaster 30,265ghij 94 28,335cdefg 26,591 16,892 42 13
B1828 29,645ghijk 86 25,353defghij 18,427 10,586 54 24
B1384 28,205hijk 82 23,254efghijk 16,319 2,448 34 18
B1806 27,025ijkl 75 20,332ghijk 16,826 12,920 37 16
B1805 26,917ijkl 79 21,168ghijk 20,481 17,594 40 17
B1820 24,311jkl 81 19,697hijkl 15,918 10,650 40 17
Ovation 24,189jkl 90 21,874fghijk 21,292 18,267 40 16
B2068 22,083klm 92 20,207ghijk 18,834 15,204 45 20
B1690 21,935klm 81 17,692jkl 13,502 10,150 43 15
Earliglow 20,307lm 90 18,356ijkl 16,800 13,923 23 10
B1590 20,200lm 81 16,275kl 12,917 9,903 57 21
B2066 16,001m 75 12,031l 9,692 6,082 27 13
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
2 weeks postharvest2 weeks postharvest
Multi-year averages of subjective ratings Multi-year averages of subjective ratings from plasticulture-grown fruitfrom plasticulture-grown fruit
1-9 scale:8.0= Going to the State Fair!7.5= Call my neighbor!7.0= Looking Good!6.5= Better watch this6.0= Call my extension agent
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
‘‘Flavorfest’Flavorfest’
‘‘Flavorfest’Flavorfest’
‘‘Flavorfest’Flavorfest’•Great flavorGreat flavor•Large firm berries – up to 49gLarge firm berries – up to 49g•High yield – up to 41,747 lb/AHigh yield – up to 41,747 lb/A•Low field rotLow field rot•Anthracnose resistant – Anthracnose resistant – C.a.C.a.•Red stele resistant – Race 3Red stele resistant – Race 3•Plasticulture or matted row-Plasticulture or matted row- establishes wellestablishes well
2004 matted row yield lbs/A2004 matted row yield lbs/A
‘‘Earliglow’Earliglow’ 16,48516,485
‘‘FlavorfestFlavorfest 16,39016,390
‘‘Allstar’Allstar’ 14,23214,232
‘‘Flavorfest’Flavorfest’
To buy plants To buy plants contact your favorite nurserycontact your favorite nursery
or e-mailor e-mailKim.Lewers@ ARS.USDA.govKim.Lewers@ ARS.USDA.gov
‘‘Flavorfest’Flavorfest’
‘‘Earliglow’Earliglow’
‘‘Allstar’Allstar’ ‘‘Ovation’Ovation’
‘‘Flavorfest’Flavorfest’
Not-patentedNot-patented