Abstract
Summary The yield of strawberry (Fragaria x ananassa Duch.) is dependent on the number of inflorescences initiated in the apical meristems of the main and branch crowns. Short-day conditions induce crown formation from the axillary buds of the main crown while long-day conditions promote runner formation. The fate of axillary buds is also affected by the plant hormone gibberellin (GA). Exogenously applied GA enhances runner formation in short daylength. Our aim was to test whether the cropping potential of strawberry could be increased by the GA biosynthesis inhibitor, prohexadione-calcium (ProCa), under northern long-day conditions. Six experiments at five different locations were carried out with ‘Polka’ or ‘Honeoye’ using ProCa concentrations of 100 and 200 mg l –1 . ProCa reduced runner formation in five experiments, and increased crown branching in three experiments. Furthermore, the 200 mg l–1 ProCa treatment increased the number of inflorescences and berry yield by 6–50 % and 7– 53 %, respectively. No negative effects on development or yield were observed. In conclusion, ProCa treatment of strawberry during the planting year has the potential to reduce runner development and enhance berry yield in northern long-day conditions.
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Claims 6
Claim · model-written summary
ProCa reduced runner formation in five experiments.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- ProCae0
- Outcome
- runner formatione0
- Direction
- reducede0
- Qualifier
- five experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“ProCa reduced runner formation in five experiments”
t0“strawberry”
Claim · model-written summary
ProCa increased crown branching in three experiments.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- ProCae1
- Outcome
- crown branchinge0
- Direction
- increasede0
- Qualifier
- three experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased crown branching in three experiments”
e1“ProCa reduced runner formation in five experiments, and increased crown branching in three experiments”
t0“strawberry”
Claim · model-written summary
The 200 mg l–1 ProCa treatment increased inflorescence number by 6–50 %.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- 200 mg l–1 ProCa treatmente0
- Outcome
- number of inflorescencese0
- Direction
- increasede0
- Value
- 6–50 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 200 mg l–1 ProCa treatment increased the number of inflorescences and berry yield by 6–50 % and 7– 53 %, respectively”
t0“strawberry”
Claim · model-written summary
The 200 mg l–1 ProCa treatment increased berry yield by 7– 53 %.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- 200 mg l–1 ProCa treatmente0
- Outcome
- berry yielde0
- Direction
- increasede0
- Value
- 7– 53 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 200 mg l–1 ProCa treatment increased the number of inflorescences and berry yield by 6–50 % and 7– 53 %, respectively”
t0“strawberry”
Claim · model-written summary
No negative effects on strawberry development or yield were observed with ProCa.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- ProCae1
- Outcome
- development or yielde0
- Direction
- No negative effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No negative effects on development or yield were observed”
e1“ProCa reduced runner formation in five experiments”
t0“strawberry”
Claim · model-written summary
The authors conclude that ProCa during planting year can reduce runner development and enhance berry yield under northern long-day conditions.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- ProCa treatmente0
- Outcome
- reduce runner development and enhance berry yielde0
- Qualifier
- during the planting yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ProCa treatment of strawberry during the planting year has the potential to reduce runner development and enhance berry yield in northern long-day conditions”
The same questions in other papers
prohexadione-calcium · yield · Fragaria x ananassa (strawberry)Positive and negative results
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- positive
- positive
- no effect
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See all 11 papers →prohexadione-calcium · growth · Fragaria x ananassa (strawberry)Results agree
7 papers in the same direction as this paper
- positive
- positive
- positive
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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.