Abstract
BACKGROUND: Earlier planting under subtropical climatic conditions has been proposed as a means of increasing strawberry ( Fragaria× ananassa Duch.) profitability but exposes transplants to heat stress. OBJECTIVE: Therefore, physical and chemical methods of ameliorating heat stress on the establishment, growth, and yield of containerized strawberry transplants were evaluated. METHODS: We used a split-plot design with white-on-black (white) mulch and black mulch as main plot treatments; and a factorial arrangement of transplant type and stress-prevention application was randomly assigned to the subplots. ‘Florida Radiance’ Jiffy plug and tray plug transplants were treated either with s-abscisic acid or with kaolin. RESULTS: White mulch resulted in greater plant vigor and vegetative growth than black mulch. Kaolin plus white mulch provided protection against heat stress as indicated by increased photosynthesis rates. At 4 weeks after transplanting, plant vigor and shoot growth were higher and flowering occurred earlier with Jiffy plug transplants than with tray plug transplants. Early marketable yields were higher with white mulch than with black mulch in three of the four site years. CONCLUSIONS: A combination of white mulch, Jiffy plug transplants, and kaolin application appears to have the best potential for alleviating heat stress during early-season strawberry establishment under subtropical conditions.
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Claims 6
Claim · model-written summary
White mulch gave greater strawberry plant vigor and vegetative growth than black mulch.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- white mulche1
- Outcome
- plant vigor and vegetative growthe1
- Direction
- greatere1
- Comparator
- black mulche1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“containerized strawberry transplants”
e1“White mulch resulted in greater plant vigor and vegetative growth than black mulch”
Claim · model-written summary
Kaolin plus white mulch increased strawberry photosynthesis rates under heat stress.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- Kaolin plus white mulche2
- Outcome
- photosynthesis ratese2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“containerized strawberry transplants”
e2“Kaolin plus white mulch provided protection against heat stress as indicated by increased photosynthesis rates”
Claim · model-written summary
Jiffy plug strawberry transplants had higher plant vigor and shoot growth than tray plug transplants at 4 weeks after transplanting.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- Jiffy plug transplantse3
- Outcome
- plant vigor and shoot growthe3
- Direction
- highere3
- Qualifier
- At 4 weeks after transplantinge3
- Comparator
- tray plug transplantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“containerized strawberry transplants”
e3“At 4 weeks after transplanting, plant vigor and shoot growth were higher and flowering occurred earlier with Jiffy plug transplants than with tray plug transplants”
Claim · model-written summary
Jiffy plug strawberry transplants flowered earlier than tray plug transplants.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- Jiffy plug transplantse3
- Outcome
- floweringe3
- Direction
- earliere3
- Comparator
- tray plug transplantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“containerized strawberry transplants”
e3“At 4 weeks after transplanting, plant vigor and shoot growth were higher and flowering occurred earlier with Jiffy plug transplants than with tray plug transplants”
Claim · model-written summary
White mulch gave higher early marketable strawberry yields than black mulch in three of four site years.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- white mulche4
- Outcome
- Early marketable yieldse4
- Direction
- highere4
- Qualifier
- in three of the four site yearse4
- Comparator
- black mulche4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“containerized strawberry transplants”
e4“Early marketable yields were higher with white mulch than with black mulch in three of the four site years”
Claim · model-written summary
A combination of white mulch, Jiffy plug transplants and kaolin is recommended to alleviate heat stress in early-season strawberry establishment.
- Taxon
- strawberryFragaria ×ananassae5
- Treatment
- white mulch, Jiffy plug transplants, and kaolin applicatione5
- Outcome
- alleviating heat stresse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“A combination of white mulch, Jiffy plug transplants, and kaolin application appears to have the best potential for alleviating heat stress during early-season strawberry establishment under subtropical conditions”
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See all 43 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.