Abstract
In an experiment at the University of Thessaly during the summer season of 2011, the effect of foliar application of gibberellic acid (GA3) to okra at an early stage of plant growth (3-4 leaves) on plant growth, pod and seed characteristics was studied in relation to harvest time. GA3 was applied at concentrations of 0 (Control), 50, and 100 mg L-1 to four okra cultivars (‘Boyiatiou’, ‘Veloudo’, ‘Clemson’ and ‘Pylaias’) and pods were harvested 30, 35, 40 and 50 days after anthesis (DAA) from the lower part of the plant. From the results it was found that GA3 application increased plant height irrespective of cultivar and GA3 concentration (50 and 100 mg L-1), but without increasing flower induction or pod set. Similarly, GA3 had no effect on pod dimensions (which were determined by genotype) or mean 100 seed weight, except in Boyiatiou. Similarly, GA3 application did not consistently affect seed moisture content, but it did however, increase the number of seeds per pod. Germination was either promoted (‘Veloudo’), inhibited (‘Boyiatiou’) or not affected (‘Pylaias’, ‘Clemson’) by GA3. Differences in germination were apparently related to the incidence of hard seeds. Storage of seeds for 18 months improved germination. Overall, pod and seed characteristics were affected more by genotype and harvest time than by GA3 application.
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Claims 13
Claim · model-written summary
GA3 increased okra plant height across cultivars and concentrations.
- Taxon
- okra
.jpg?width=60)
Abelmoschus esculentust0 - Treatment
- GA3 applicatione0
- Outcome
- plant heighte0
- Direction
- increasede0
- Qualifier
- irrespective of cultivar and GA3 concentration (50 and 100 mg L-1)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“GA3 application increased plant height irrespective of cultivar and GA3 concentration (50 and 100 mg L-1)”
t0“Okra”
Claim · model-written summary
GA3 did not increase flower induction or pod set.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- GA3e1
- Outcome
- flower induction or pod sete0
- Direction
- without increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without increasing flower induction or pod set”
e1“GA3 application did not consistently affect seed moisture content”
t0“Okra”
Claim · model-written summary
GA3 had no effect on pod dimensions, which depended on genotype.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- GA3e0
- Outcome
- pod dimensionse0
- Direction
- no effecte0
- Qualifier
- determined by genotypee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 had no effect on pod dimensions (which were determined by genotype)”
t0“Okra”
Claim · model-written summary
GA3 had no effect on mean 100 seed weight except in Boyiatiou.
- Taxon
- okraAbelmoschus esculentust0
- Material
- Boyiatioue0
- Treatment
- GA3e0
- Outcome
- mean 100 seed weighte0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 had no effect on pod dimensions (which were determined by genotype) or mean 100 seed weight, except in Boyiatiou”
t0“Okra”
Claim · model-written summary
GA3 did not consistently affect seed moisture.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- GA3 applicatione0
- Outcome
- seed moisture contente0
- Direction
- did not consistently affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 application did not consistently affect seed moisture content”
t0“Okra”
Claim · model-written summary
GA3 increased seeds per pod.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- GA3 applicatione1
- Outcome
- number of seeds per pode0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase the number of seeds per pod”
e1“GA3 application did not consistently affect seed moisture content”
t0“Okra”
Claim · model-written summary
GA3 promoted germination in Veloudo.
- Taxon
- okraAbelmoschus esculentust0
- Material
- Veloudoe0
- Treatment
- GA3e1
- Outcome
- Germinatione0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was either promoted (‘Veloudo’)”
e1“by GA3. Differences in germination”
t0“Okra”
Claim · model-written summary
GA3 inhibited germination in Boyiatiou.
- Taxon
- okraAbelmoschus esculentust0
- Material
- Boyiatioue0
- Treatment
- GA3e1
- Outcome
- Germinatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination was either promoted (‘Veloudo’), inhibited (‘Boyiatiou’)”
e1“by GA3. Differences in germination”
t0“Okra”
Claim · model-written summary
GA3 did not affect germination in Pylaias.
- Taxon
- okraAbelmoschus esculentust0
- Material
- Pylaiase0
- Treatment
- GA3e0
- Outcome
- Germinatione1
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not affected (‘Pylaias’, ‘Clemson’) by GA3”
e1“Germination”
t0“Okra”
Claim · model-written summary
GA3 did not affect germination in Clemson.
- Taxon
- okraAbelmoschus esculentust0
- Material
- Clemsone0
- Treatment
- GA3e0
- Outcome
- Germinatione1
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not affected (‘Pylaias’, ‘Clemson’) by GA3”
e1“Germination”
t0“Okra”
Claim · model-written summary
Germination differences were apparently related to hard-seed incidence.
- Taxon
- okraAbelmoschus esculentust0
- Organ / stage
- hard seedse0
- Outcome
- germinatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences in germination were apparently related to the incidence of hard seeds”
t0“Okra”
Claim · model-written summary
Eighteen months of seed storage improved germination.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- Storage of seeds for 18 monthse0
- Outcome
- germinatione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of seeds for 18 months improved germination”
t0“Okra”
Claim · model-written summary
Genotype and harvest time affected pod and seed traits more than GA3.
- Taxon
- okraAbelmoschus esculentust0
- Treatment
- harvest timee0
- Outcome
- pod and seed characteristicse0
- Direction
- moree0
- Comparator
- GA3 applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pod and seed characteristics were affected more by genotype and harvest time than by GA3 application”
t0“Okra”
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