Abstract
Conventional strawberry (Fragaria ananassa Duch. cv. Chandler) production was compared with production undergoing conversion to certified organic management in a three-year, replicated, on- farm study. Plant vegetative development, measured as leaf number, leaf area, and vegetative biomass, decreased in the organic production system compared to the conventional system. Developmental differences were less significant in the third year of the study. Reproductive development, measured as number of flower buds, open flowers, and immature fruit, as well as total reproductive biomass, was also lower in the organic system. The timing and degree of difference in responses studied varied over the course of the study. The percent of total berries produced which were not marketable was larger in the conventional system in the second and third years of the study. Marketable fruit yield was consistently lower in the organic plots, but the margin of difference decreased over the course of the study from 39% to 28%. However, market conditions resulted in greater returns per hectare in the organic production system.
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Claims 7
Claim · model-written summary
Organic production reduced leaf number, area and vegetative biomass relative to conventional production.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassae1 - Treatment
- organic production systeme0
- Outcome
- leaf number, leaf area, and vegetative biomasse0
- Direction
- decreasede0
- Comparator
- conventional systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Plant vegetative development, measured as leaf number, leaf area, and vegetative biomass, decreased in the organic production system compared to the conventional system”
e1“Conventional strawberry”
Claim · model-written summary
Developmental differences were less significant in year three.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- Developmental differencese0
- Direction
- less significante0
- Qualifier
- third yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Developmental differences were less significant in the third year of the study”
e1“Conventional strawberry”
Claim · model-written summary
Organic production reduced flower buds, open flowers, immature fruit and reproductive biomass.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- organic systeme0
- Outcome
- number of flower buds, open flowers, and immature fruite0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reproductive development, measured as number of flower buds, open flowers, and immature fruit, as well as total reproductive biomass, was also lower in the organic system”
e1“Conventional strawberry”
Claim · model-written summary
The timing and degree of developmental differences varied over the study.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- timing and degree of difference in responses studiede0
- Direction
- variede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The timing and degree of difference in responses studied varied over the course of the study”
e1“Conventional strawberry”
Claim · model-written summary
Conventional production had a larger percentage of unmarketable berries in years two and three.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- percent of total berries produced which were not marketablee0
- Direction
- largere0
- Qualifier
- second and third yearse0
- Setting
- conventional systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percent of total berries produced which were not marketable was larger in the conventional system in the second and third years of the study”
e1“Conventional strawberry”
Claim · model-written summary
Organic marketable yield was lower, with the difference narrowing from 39% to 28%.
- Taxon
- strawberryFragaria ×ananassae1
- Treatment
- organic plotse0
- Outcome
- Marketable fruit yielde0
- Direction
- lowere0
- Value
- 39% to 28%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Marketable fruit yield was consistently lower in the organic plots, but the margin of difference decreased over the course of the study from 39% to 28%”
e1“Conventional strawberry”
Claim · model-written summary
Organic production yielded greater returns per hectare under market conditions.
- Taxon
- strawberryFragaria ×ananassae1
- Outcome
- returns per hectaree0
- Direction
- greatere0
- Setting
- organic production systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“market conditions resulted in greater returns per hectare in the organic production system”
e1“Conventional strawberry”
The same questions in other papers
cultivation system · phenology · Fragaria x ananassa (strawberry)Positive and negative results
1 in the opposite direction
- positive
cultivation system · growth · Fragaria x ananassa (strawberry)Positive and negative results
3 papers in the same direction as this paper · 12 in the opposite direction
- positive
- no effect
- positive
12 papers more in this group
See all 16 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.