Abstract
Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America. Digging actively growing plants in the fall from northern nurseries, and transplanting them into southern fields at a time of seasonally high temperatures makes it difficult for transplants to re-establish. Tall transplants are prone to leaf damage during shipping, and excessive leaf area causes more wilting after transplanting, leading to plant death in the southern fields. Improving strawberry plant morphology in the northern nurseries can produce more robust transplants, resulting in better post-transplant growth, higher fruit yields and earlier fruit production. Experiments to alter plant morphology used two methods: mechanical leaf removal by mowing, and chemical control using the growth regulator prohexadione-calcium. Two cultivars, 'Sweet Charlie' and 'Camarosa', were mowed in a nursery field in Nova Scotia (45° 26´ N, 63° 27´ W) on one of four dates (Aug. 22, Sept. 7, Sept. 22 and Oct. 5) during the growing season in 2000. Plants were dug on October 5, and transplanted in Dover, Florida (28° 00´ N, 82° 22´ W). Fruits were collected twice weekly from late November, 2000 to mid-February, 2001. Mowing reduced plant height and total leaf area. At time of digging, plants which were mowed later were shorter than those mowed earlier. By the end of December 'Camarosa' plants mowed on Sept. 7, had produced 51 % more fruit by weight than the unmowed controls; total yield (to mid-February) was increased by 20%. Plants of 'Sweet Charlie' treated with prohexadione-calcium on Sept. 7 in Nova Scotia were more compact, and in turn produced 29 % more fruit by weight by the end of December, and greater total fruit yield (18 %) relative to non-treated transplants in Florida.
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Claims 7
Claim · model-written summary
Mowing reduced plant height and total leaf area of strawberry transplants.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassae0 - Treatment
- Mowinge1
- Outcome
- plant height and total leaf areae1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e1“Mowing reduced plant height and total leaf area”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
Claim · model-written summary
Strawberry plants mowed later were shorter at digging than those mowed earlier.
- Taxon
- StrawberryFragaria ×ananassae0
- Treatment
- mowed latere2
- Outcome
- plant heighte1
- Direction
- shortere2
- Comparator
- those mowed earliere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“At time of digging, plants which were mowed later were shorter than those mowed earlier”
e1“Mowing reduced plant height and total leaf area”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
Claim · model-written summary
Camarosa transplants mowed on Sept. 7 produced 51% more fruit by weight than unmowed controls by the end of December.
- Taxon
- StrawberryFragaria ×ananassae0
- Material
- Camarosae3
- Treatment
- mowed on Sept. 7e3
- Outcome
- fruit by weighte3
- Direction
- moree3
- Value
- 51 %e3
- Qualifier
- by the end of Decembere3
- Comparator
- unmowed controlse3
- Setting
- Dover, Floridae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“By the end of December 'Camarosa' plants mowed on Sept. 7, had produced 51 % more fruit by weight than the unmowed controls”
e7“transplanted in Dover, Florida”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
Claim · model-written summary
Mowing on Sept. 7 increased total strawberry yield (to mid-February) by 20%.
- Taxon
- StrawberryFragaria ×ananassae0
- Treatment
- mowed on Sept. 7e3
- Outcome
- total yielde4
- Direction
- increasede4
- Value
- 20%e4
- Comparator
- unmowed controlse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“total yield (to mid-February) was increased by 20%”
e3“By the end of December 'Camarosa' plants mowed on Sept. 7, had produced 51 % more fruit by weight than the unmowed controls”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
Claim · model-written summary
Sweet Charlie plants treated with prohexadione-calcium on Sept. 7 were more compact than non-treated transplants.
- Taxon
- StrawberryFragaria ×ananassae0
- Material
- Sweet Charliee5
- Treatment
- treated with prohexadione-calcium on Sept. 7e5
- Outcome
- compacte5
- Direction
- moree5
- Comparator
- non-treated transplantse6
- Setting
- Nova Scotiae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Plants of 'Sweet Charlie' treated with prohexadione-calcium on Sept. 7 in Nova Scotia were more compact, and in turn produced 29 % more fruit by weight by the end of December”
e6“greater total fruit yield (18 %) relative to non-treated transplants in Florida”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
Claim · model-written summary
Sweet Charlie plants treated with prohexadione-calcium on Sept. 7 produced 29% more fruit by weight by the end of December.
- Taxon
- StrawberryFragaria ×ananassae0
- Material
- Sweet Charliee5
- Treatment
- treated with prohexadione-calcium on Sept. 7e5
- Outcome
- fruit by weighte5
- Direction
- moree5
- Value
- 29 %e5
- Qualifier
- by the end of Decembere5
- Comparator
- non-treated transplantse6
- Setting
- Nova Scotiae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Plants of 'Sweet Charlie' treated with prohexadione-calcium on Sept. 7 in Nova Scotia were more compact, and in turn produced 29 % more fruit by weight by the end of December”
e6“greater total fruit yield (18 %) relative to non-treated transplants in Florida”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
Claim · model-written summary
Sweet Charlie transplants treated with prohexadione-calcium had 18% greater total fruit yield than non-treated transplants in Florida.
- Taxon
- StrawberryFragaria ×ananassae0
- Treatment
- treated with prohexadione-calcium on Sept. 7e5
- Outcome
- total fruit yielde6
- Direction
- greatere6
- Value
- 18 %e6
- Comparator
- non-treated transplantse6
- Setting
- Floridae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“greater total fruit yield (18 %) relative to non-treated transplants in Florida”
e5“Plants of 'Sweet Charlie' treated with prohexadione-calcium on Sept. 7 in Nova Scotia were more compact, and in turn produced 29 % more fruit by weight by the end of December”
e0“Strawberry plants are vegetatively propagated in northern nurseries to supply fruit production farms in the southern United States of America”
The same questions in other papers
prohexadione-calcium · yield · Fragaria x ananassa (strawberry)Positive and negative results
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- positive
- positive
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See all 11 papers →pruning · growth · Fragaria x ananassa (strawberry)Positive and negative results
3 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- negative
4 papers more in this group
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.