Abstract
Nonweighing drainage lysimeters were used to measure seasonal water use of mature ‘Emerald’ southern highbush blueberry (SHB; Vaccinium corymbosum interspecific hybrid) plants grown in pine bark beds and in pine bark amended soil in north central Florida. In the absence of rain, irrigation was applied daily with microsprinklers at ≈120% to 175% of reference evapotranspiration as either single or split applications. Leachate was collected and its volume determined from each lysimeter at 6- to 10-day intervals throughout the study. Water use, expressed as L/plant, was calculated as the difference between the amount of irrigation/rain added to lysimeters and the amount of leachate collected from lysimeters during each measurement period. Average daily water use was calculated for monthly intervals beginning in Apr. 2010 and ending in Sept. 2012. Water use increased rapidly during spring through the final stages of fruit ripening and harvest (May) with peak water use occurring during mid to late summer (July, August, and September). Plants grown in pine bark beds used more water than plants in pine bark amended soil during Apr., May, and Dec. 2010, Feb. 2011, and Mar. 2012, but there were no differences during the periods of highest water use. No differences in water use were observed between single or split-application irrigation treatments. Monthly averages for daily water use during the 30-month period ranged from ≈1.75 L/plant in January to ≈8.0 L/plant in mid to late summer. Mean monthly crop coefficient values during the 30-month period ranged from 0.44 in February to 0.86 in September. Canopy volume, yield, and mean berry weight were unaffected by soil or irrigation treatments.
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Claims 9
Claim · model-written summary
Blueberry water use rose rapidly in spring through harvest and peaked in mid to late summer.
Verbatim
e0“Water use increased rapidly during spring through the final stages of fruit ripening and harvest (May) with peak water use occurring during mid to late summer (July, August, and September).”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Blueberry plants in pine bark beds used more water than those in amended soil in the listed months.
Verbatim
e0“Plants grown in pine bark beds used more water than plants in pine bark amended soil during Apr., May, and Dec. 2010, Feb. 2011, and Mar. 2012”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Bed and amended-soil plants did not differ in water use during peak-use periods.
Verbatim
e0“there were no differences during the periods of highest water use”
t0“Southern Highbush Blueberry”
e1“Plants grown in pine bark beds used more water than plants in pine bark amended soil during Apr., May, and Dec. 2010, Feb. 2011, and Mar. 2012, but there were no differences during the periods of highest water use”
Claim · model-written summary
Single and split irrigation applications did not differ in blueberry water use.
Verbatim
e0“No differences in water use were observed between single or split-application irrigation treatments.”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Monthly mean daily blueberry water use ranged from about 1.75 L/plant in January to about 8.0 L/plant in mid to late summer.
Verbatim
e0“Monthly averages for daily water use during the 30-month period ranged from ≈1.75 L/plant in January to ≈8.0 L/plant in mid to late summer.”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Daily water use reached about 8.0 L/plant in mid to late summer.
Verbatim
e0“Monthly averages for daily water use during the 30-month period ranged from ≈1.75 L/plant in January to ≈8.0 L/plant in mid to late summer.”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Monthly mean crop coefficient was 0.44 in February.
Verbatim
e0“Mean monthly crop coefficient values during the 30-month period ranged from 0.44 in February to 0.86 in September.”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Monthly mean crop coefficient was 0.86 in September.
Verbatim
e0“Mean monthly crop coefficient values during the 30-month period ranged from 0.44 in February to 0.86 in September.”
t0“Southern Highbush Blueberry”
Claim · model-written summary
Soil and irrigation treatments did not affect canopy volume, yield, or mean berry weight.
- Taxon
- Southern Highbush Blueberryt0
- Treatment
- soil or irrigation treatmentse0
- Outcome
- Canopy volume, yield, and mean berry weighte0
- Direction
- unaffectede0
Not reportedComparator
Verbatim
e0“Canopy volume, yield, and mean berry weight were unaffected by soil or irrigation treatments.”
t0“Southern Highbush Blueberry”
The same questions in other papers
irrigation · yield · Vaccinium corymbosum (highbush blueberry)Positive and negative results
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See all 8 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.