Abstract
A study was conducted to compare the performance of freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields. Treatments consisted of using: a) 4.5 gal/min sprinkler heads (control), b) 3.5 gal/min sprinkler heads, c)heavy row covers on the crop canopy (0.9 oz/yd2), d) heavy row covers on 1.5-ft high minitunnel hoops, e) light row covers on the crop canopy (0.6 oz/yd2), f) light row covers on 1.5-ft-high minitunnel hoops, and g) 16-ft high tunnels. The minimum air temperature without freeze protection practices in the field during the season was 21 °F, but the minimum temperature directly above the crop canopy was 34 °F in covered plots regardless of the cover weight and the use of hoops and 33 °F inside the high tunnels. No water was needed in plots with row covers and inside high tunnels, whereas approximately 39 acre-inch/acre of water were needed in the control plots. Using non-irrigation alternatives for freeze protection resulted in the highest early and total fruit weights, where total yields in plots treated with these non-irrigation alternatives ranged between 15.1 and 15.4 ton/acre while there was approximately a 20% fruit weight decline when sprinkler irrigation was utilized, regardless of the output volume.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Non-irrigation freeze protection alternatives gave the highest early and total fruit weights compared with sprinkler irrigation.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae1 - Treatment
- non-irrigation alternativese6
- Outcome
- early and total fruit weightse6
- Direction
- higheste6
- Comparator
- sprinkler irrigatione7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e6“Using non-irrigation alternatives for freeze protection resulted in the highest early and total fruit weights, where total yields in plots treated with these non-irrigation alternatives ranged between 15.1 and 15.4 ton/acre”
e7“there was approximately a 20% fruit weight decline when sprinkler irrigation was utilized, regardless of the output volume”
Claim · model-written summary
Total yields under non-irrigation alternatives ranged between 15.1 and 15.4 ton/acre.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- non-irrigation alternativese6
- Outcome
- total yieldse6
- Value
- 15.1 and 15.4 ton/acree6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e6“Using non-irrigation alternatives for freeze protection resulted in the highest early and total fruit weights, where total yields in plots treated with these non-irrigation alternatives ranged between 15.1 and 15.4 ton/acre”
Claim · model-written summary
Sprinkler irrigation reduced fruit weight by about 20% regardless of output volume.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- sprinkler irrigatione7
- Outcome
- fruit weighte7
- Direction
- declinee7
- Value
- 20%e7
- Qualifier
- regardless of the output volumee7
- Comparator
- non-irrigation alternativese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e6“Using non-irrigation alternatives for freeze protection resulted in the highest early and total fruit weights, where total yields in plots treated with these non-irrigation alternatives ranged between 15.1 and 15.4 ton/acre”
e7“there was approximately a 20% fruit weight decline when sprinkler irrigation was utilized, regardless of the output volume”
Claim · model-written summary
Row covers and high tunnels needed no irrigation water, compared with about 39 acre-inch/acre in control plots.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- row covers and inside high tunnelse5
- Outcome
- watere5
- Direction
- No water was needede5
- Qualifier
- approximately 39 acre-inch/acre of watere5
- Comparator
- control plotse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e5“No water was needed in plots with row covers and inside high tunnels, whereas approximately 39 acre-inch/acre of water were needed in the control plots”
Claim · model-written summary
Under covered plots the minimum temperature directly above the crop canopy was 34 °F.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- covered plotse3
- Outcome
- minimum temperature directly above the crop canopye3
- Value
- 34 °Fe3
- Qualifier
- regardless of the cover weight and the use of hoopse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e3“the minimum temperature directly above the crop canopy was 34 °F in covered plots regardless of the cover weight and the use of hoops”
Claim · model-written summary
Inside the high tunnels the minimum temperature was 33 °F.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- high tunnelse4
- Outcome
- minimum temperaturee3
- Value
- 33 °Fe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e3“the minimum temperature directly above the crop canopy was 34 °F in covered plots regardless of the cover weight and the use of hoops”
e4“33 °F inside the high tunnels”
Claim · model-written summary
Without freeze protection practices the minimum air temperature in the field was 21 °F.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- without freeze protection practicese2
- Outcome
- minimum air temperaturee2
- Value
- 21 °Fe2
- Setting
- in the field during the seasone2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“freeze protection methods on strawberry (Fragaria ×ananassa Duch.) growth and yields”
e2“The minimum air temperature without freeze protection practices in the field during the season was 21 °F”
The same questions in other papers
irrigation · yield · Fragaria x ananassa (strawberry)Results differ
24 papers in the same direction as this paper · 40 in the opposite direction
- positive
- positive
- positive
61 papers more in this group
See all 65 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.