Abstract
The aim of this work was to investigate whether parthenocarpic fruit growth could avoid ushing, i.e. an irregular yield pattern, in sweet pepper. Plants were grown in a greenhouse compartment from April until August. Half of the plants were grown without a fruit set treatment (control), whereas parthenocarpic fruits were allowed to develop on the other plants by preventing self-pollination and applying auxin to the stigma. For node positions 3 to 17, fruit set per node varied between 21 and 55 % for control plants [coecient of variation (CV) 11 %], whereas auxin-treated plants showed much less variation in fruit set (4157 %; CV 5 %) and average fruit set was higher. In agreement with fruit set, fruit yield was also much more regular in the auxin-treated plants. Fruit fresh yield varied between 0 . 2 and 1 . 0 kg m 2 for control plants (CV 20 %), and between 0 . 4 and 0 . 8 kg m 2 for auxin-treated plants (CV 9 %). Results showed that developing seeds in sweet pepper fruits are the main cause of the abortion of new owers, and irregular fruit set and yield. Parthenocarpic fruit growth resulted in atter, 30 % smaller fruits, because of a reduction in fruit growth rate; the duration of fruit growth was 1 week longer than for fruits from control plants. Parthenocarpic fruits were hardly aected by blossom-end rot (BER) with only 1 % of fruits being aected compared to 31 % in the control. Total dry mass production was the same for treated and control plants; however, in auxin-treated plants, 50 % of the total dry mass was allocated to the fruits, compared to 58 % in control plants.
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Claims 9
Claim · model-written summary
Auxin-treated sweet pepper plants had less variable and higher average fruit set than controls.
- Taxon
- Sweet Pepper
Capsicum annuumt0 - Treatment
- auxin-treated plantse0
- Outcome
- variation in fruit sete0
- Direction
- much less variatione0
- Value
- CV 5 %e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit set per node varied between 21 and 55 % for control plants [coecient of variation (CV) 11 %], whereas auxin-treated plants showed much less variation in fruit set (4157 %; CV 5 %) and average fruit set was higher”
t0“Sweet Pepper”
Claim · model-written summary
Auxin-treated plants had more regular sweet pepper fruit yield than controls.
- Taxon
- Sweet PepperCapsicum annuumt0
- Treatment
- auxin-treated plantse0
- Outcome
- fruit yielde0
- Direction
- much more regulare0
- Value
- CV 9 %e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit yield was also much more regular in the auxin-treated plants. Fruit fresh yield varied between 0 . 2 and 1 . 0 kg m 2 for control plants (CV 20 %), and between 0 . 4 and 0 . 8 kg m 2 for auxin-treated plants (CV 9 %)”
t0“Sweet Pepper”
Claim · model-written summary
The authors attribute irregular fruit set and yield and abortion of new flowers to developing seeds.
- Taxon
- sweet pepperCapsicum annuume0
- Organ / stage
- developing seedse0
- Outcome
- abortion of new owers, and irregular fruit set and yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“developing seeds in sweet pepper fruits are the main cause of the abortion of new owers, and irregular fruit set and yield”
Claim · model-written summary
Parthenocarpic sweet pepper fruit was flatter and 30% smaller than control fruit.
- Taxon
- Sweet PepperCapsicum annuumt0
- Treatment
- Parthenocarpic fruit growthe0
- Outcome
- fruitse0
- Direction
- smallere0
- Value
- 30 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Parthenocarpic fruit growth resulted in atter, 30 % smaller fruits”
t0“Sweet Pepper”
Claim · model-written summary
Parthenocarpic fruit had a reduced growth rate.
- Taxon
- Sweet PepperCapsicum annuumt0
- Outcome
- fruit growth ratee0
- Direction
- reductione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“because of a reduction in fruit growth rate”
t0“Sweet Pepper”
Claim · model-written summary
Parthenocarpic fruit growth lasted one week longer than in controls.
- Taxon
- Sweet PepperCapsicum annuumt0
- Outcome
- duration of fruit growthe0
- Direction
- longere0
- Value
- 1 weeke0
- Comparator
- fruits from control plantse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the duration of fruit growth was 1 week longer than for fruits from control plants”
t0“Sweet Pepper”
Claim · model-written summary
Blossom-end rot affected 1% of parthenocarpic fruits versus 31% of controls.
- Taxon
- Sweet PepperCapsicum annuumt0
- Treatment
- Parthenocarpic fruitse0
- Outcome
- blossom-end rot (BER)e0
- Direction
- hardly aectede0
- Value
- 1 %e0
- Qualifier
- 31 %e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Parthenocarpic fruits were hardly aected by blossom-end rot (BER) with only 1 % of fruits being aected compared to 31 % in the control”
t0“Sweet Pepper”
Claim · model-written summary
Total dry mass production was the same in auxin-treated and control sweet pepper plants.
- Taxon
- Sweet PepperCapsicum annuumt0
- Treatment
- treatede0
- Outcome
- Total dry mass productione0
- Direction
- the samee0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total dry mass production was the same for treated and control plants”
t0“Sweet Pepper”
Claim · model-written summary
Auxin-treated plants allocated 50% of dry mass to fruit versus 58% in controls.
- Taxon
- Sweet PepperCapsicum annuumt0
- Treatment
- auxin-treated plantse0
- Outcome
- total dry mass was allocated to the fruitse0
- Direction
- compared toe0
- Value
- 50 %e0
- Qualifier
- 58 %e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in auxin-treated plants, 50 % of the total dry mass was allocated to the fruits, compared to 58 % in control plants”
t0“Sweet Pepper”
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See all 13 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.