Abstract
Blueberry production in Mississippi (MS) is mainly rabbiteye blueberries ( Vaccinium virgatum Ait.), which ripen in late May to June. Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.) presents an opportunity for early fruit production and increased market price for locally produced blueberries, yet faces the challenge of spring frost damage. One-year-old liners of 10 SHB cultivars were transplanted into 15-gallon plastic containers and placed in a high tunnel in Apr. 2015. Blueberry plants were fertilized with either a conventional or an organic fertilizer at comparable rates. Plants were evaluated for berry yield, timing of first berry harvest and peak harvest, single berry weight, and soluble solid content during the 2016 and 2017 growing seasons. The high tunnel increased monthly maximum temperature by 3.2 to 10.4 °C, monthly average temperature by 0.7 to 4.2 °C, and minimum monthly temperature for up to 3.0 °C compared with outdoor environment. Photosynthetically active radiation ( PAR ) at noon in the high tunnel ranged from 477 to 1411 µmol·m −2 ·s −1 and relative humidity ranged from 54.6% to 81.7% from Jan. 2016 to June 2017. SHBs in the high tunnel produced first berry harvest during the first week of April in both growing seasons. Total berry yield per plant ranged from 921 g to 2136 g in 2016 and from 1222 g to 2480 g in 2017. Compared with the organic fertilizer, conventional fertilizer increased berry yield in April and May, and total berry yield in 2016, but resulted in similar yield in 2017. Eight cultivars (Emerald, Farthing, Gupton, Meadowlark, Pearl, Rebel, Star, and Sweetcrisp) produced single berries that averaged more than 2 g per berry in 2016, compared with two cultivars (Gupton and Pearl) in 2017. Smaller berry size may have resulted from the generally increasing yield from 2016 to 2017. ‘Sweetcrisp’ produced berries with higher soluble solid content, 14.2% and 14.1% in 2016 and 2017, than the other nine cultivars. Container production of SHB cultivars in a high tunnel produced total berry yield equivalent to 6458 kg/ha in 2016 to 7500 kg/ha in 2017, advanced blueberry production by 4 to 5 weeks, and therefore may serve as a potential production system for early fruiting blueberries in Mississippi.
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Claims 12
Claim · model-written summary
The high tunnel raised monthly maximum temperature by 3.2 to 10.4 °C relative to the outdoor environment.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e1“The high tunnel increased monthly maximum temperature by 3.2 to 10.4 °C, monthly average temperature by 0.7 to 4.2 °C, and minimum monthly temperature for up to 3.0 °C compared with outdoor environment”
Claim · model-written summary
Total berry yield per plant ranged from 921 to 2136 g in 2016.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e2“Total berry yield per plant ranged from 921 g to 2136 g in 2016 and from 1222 g to 2480 g in 2017”
Claim · model-written summary
Total berry yield per plant ranged from 1222 to 2480 g in 2017.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e2“Total berry yield per plant ranged from 921 g to 2136 g in 2016 and from 1222 g to 2480 g in 2017”
Claim · model-written summary
Conventional fertilizer increased berry yield in April and May and total berry yield in 2016, compared with organic fertilizer.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e4“Compared with the organic fertilizer, conventional fertilizer increased berry yield in April and May, and total berry yield in 2016, but resulted in similar yield in 2017”
Claim · model-written summary
Conventional fertilizer gave similar berry yield to organic fertilizer in 2017.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e4“Compared with the organic fertilizer, conventional fertilizer increased berry yield in April and May, and total berry yield in 2016, but resulted in similar yield in 2017”
Claim · model-written summary
Eight cultivars produced single berries averaging more than 2 g per berry in 2016.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e5“Eight cultivars (Emerald, Farthing, Gupton, Meadowlark, Pearl, Rebel, Star, and Sweetcrisp) produced single berries that averaged more than 2 g per berry in 2016, compared with two cultivars (Gupton and Pearl) in 2017”
Claim · model-written summary
In 2017 only two cultivars (Gupton and Pearl) were compared for single berry size.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e5“Eight cultivars (Emerald, Farthing, Gupton, Meadowlark, Pearl, Rebel, Star, and Sweetcrisp) produced single berries that averaged more than 2 g per berry in 2016, compared with two cultivars (Gupton and Pearl) in 2017”
Claim · model-written summary
Sweetcrisp had higher soluble solid content, 14.2%, than the other nine cultivars in 2016.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e5“Eight cultivars (Emerald, Farthing, Gupton, Meadowlark, Pearl, Rebel, Star, and Sweetcrisp) produced single berries that averaged more than 2 g per berry in 2016, compared with two cultivars (Gupton and Pearl) in 2017”
e6“produced berries with higher soluble solid content, 14.2% and 14.1% in 2016 and 2017, than the other nine cultivars”
Claim · model-written summary
Sweetcrisp had higher soluble solid content, 14.1%, than the other nine cultivars in 2017.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e5“Eight cultivars (Emerald, Farthing, Gupton, Meadowlark, Pearl, Rebel, Star, and Sweetcrisp) produced single berries that averaged more than 2 g per berry in 2016, compared with two cultivars (Gupton and Pearl) in 2017”
e6“produced berries with higher soluble solid content, 14.2% and 14.1% in 2016 and 2017, than the other nine cultivars”
Claim · model-written summary
Container production of SHB cultivars in a high tunnel gave total berry yield of 6458 to 7500 kg/ha in 2016 and 2017.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e7“Container production of SHB cultivars in a high tunnel produced total berry yield equivalent to 6458 kg/ha in 2016 to 7500 kg/ha in 2017, advanced blueberry production by 4 to 5 weeks”
Claim · model-written summary
Container production of SHB cultivars in a high tunnel advanced blueberry production by 4 to 5 weeks.
- Taxon
- southern highbush blueberriese0
- Treatment
- Container production of SHB cultivars in a high tunnele7
- Outcome
- blueberry productione7
- Direction
- advancede7
- Value
- 4 to 5 weekse7
Not reportedComparator
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e7“Container production of SHB cultivars in a high tunnel produced total berry yield equivalent to 6458 kg/ha in 2016 to 7500 kg/ha in 2017, advanced blueberry production by 4 to 5 weeks”
Claim · model-written summary
First berry harvest in the high tunnel occurred in the first week of April in both seasons.
Verbatim
e0“Growing early-ripening southern highbush blueberries (SHBs) ( Vaccinium corymbosum L.)”
e3“SHBs in the high tunnel produced first berry harvest during the first week of April in both growing seasons”
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See all 24 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.