Abstract
AbstractJuvenile Prunus avium shoot apices produced flowering shoots after grafting to mature trees irrespective of treatment of the apices in the season before grafting with G A or G A + cytokinin. Scions grown from mature shoot apices grafted to seedling stocks failed to flower, again irrespective of prior hormone treatment. Similar treatment of mature shoot apices with these hormones, or with zeatin, inhibited concurrent floral initiation, but G A or GA + zeatin treatments increased flowering of scions grown from the treated apices after grafting to untreated mature trees. Localized shoot tip or root drench treatment of one or two year old seedlings with (2RS, 3RS)-paclobutrazol failed to induce flowering, but treatment of three or four year old plants did stimulate flowering. Branch or stem girdling or root flooding applied alone or in combination to three year old plants did not affect flowering. Floral initiation by three or four year old plants was inhibited by treatment with GAs. The results were consistent with the presence in seedlings of a root- produced, xylem transported, graft-transmissible inhibitor(s), which control the initiation of otherwise competent meristems, and which could include factors other than GAs. Juvenile meristem competence to flower was not affected by prior GA treatment.
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Claims 11
Claim · model-written summary
Juvenile shoot apices flowered after grafting to mature trees regardless of prior GA or cytokinin.
- Taxon
- Prunus avium
Prunus aviume0 - Organ / stage
- Juvenile Prunus avium shoot apicese0
- Treatment
- grafting to mature treese0
- Outcome
- flowering shootse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Juvenile Prunus avium shoot apices produced flowering shoots after grafting to mature trees irrespective of treatment of the apices in the season before grafting with G A or G A + cytokinin”
Claim · model-written summary
Mature shoot apex scions on seedling stocks failed to flower regardless of prior hormone treatment.
- Taxon
- Prunus aviumPrunus aviumt0
- Organ / stage
- mature shoot apicese0
- Treatment
- grafted to seedling stockse0
- Outcome
- failed to flowere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Scions grown from mature shoot apices grafted to seedling stocks failed to flower, again irrespective of prior hormone treatment”
t0“Prunus avium”
Claim · model-written summary
GA, GA plus cytokinin, or zeatin inhibited concurrent floral initiation in mature apices.
- Taxon
- Prunus aviumPrunus aviumt0
- Organ / stage
- mature shoot apicese0
- Treatment
- zeatine0
- Outcome
- floral initiatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar treatment of mature shoot apices with these hormones, or with zeatin, inhibited concurrent floral initiation”
t0“Prunus avium”
Claim · model-written summary
GA or GA plus zeatin increased later flowering after grafting treated apices to mature trees.
- Taxon
- Prunus aviumPrunus aviumt0
- Treatment
- G A or GA + zeatin treatmentse0
- Outcome
- flowering of scionse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G A or GA + zeatin treatments increased flowering of scions grown from the treated apices after grafting to untreated mature trees”
t0“Prunus avium”
Claim · model-written summary
Paclobutrazol did not induce flowering in one or two year old seedlings.
- Taxon
- Prunus aviumPrunus aviumt0
- Organ / stage
- one or two year old seedlingse0
- Treatment
- (2RS, 3RS)-paclobutrazole0
- Outcome
- failed to induce floweringe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment of one or two year old seedlings with (2RS, 3RS)-paclobutrazol failed to induce flowering”
t0“Prunus avium”
Claim · model-written summary
Treatment stimulated flowering in three or four year old plants.
- Taxon
- Prunus aviumPrunus aviumt0
- Organ / stage
- three or four year old plantse0
- Treatment
- treatmente0
- Outcome
- floweringe0
- Direction
- stimulatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment of three or four year old plants did stimulate flowering”
t0“Prunus avium”
Claim · model-written summary
Girdling did not affect flowering in three year old plants.
- Taxon
- Prunus aviumPrunus aviumt0
- Treatment
- Branch or stem girdlinge0
- Outcome
- floweringe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Branch or stem girdling or root flooding applied alone or in combination to three year old plants did not affect flowering”
t0“Prunus avium”
Claim · model-written summary
Root flooding did not affect flowering in three year old plants.
- Taxon
- Prunus aviumPrunus aviumt0
- Treatment
- root floodinge0
- Outcome
- floweringe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Branch or stem girdling or root flooding applied alone or in combination to three year old plants did not affect flowering”
t0“Prunus avium”
Claim · model-written summary
GAs inhibited floral initiation in three or four year old plants.
- Taxon
- Prunus aviumPrunus aviumt0
- Treatment
- treatment with GAse0
- Outcome
- Floral initiatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Floral initiation by three or four year old plants was inhibited by treatment with GAs”
t0“Prunus avium”
Claim · model-written summary
Authors infer a root-produced, xylem-transported graft-transmissible flowering inhibitor in seedlings.
- Taxon
- Prunus aviumPrunus aviumt0
- Outcome
- initiation of otherwise competent meristemse0
- Qualifier
- root- produced, xylem transported, graft-transmissible inhibitor(s)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root- produced, xylem transported, graft-transmissible inhibitor(s), which control the initiation of otherwise competent meristems”
t0“Prunus avium”
Claim · model-written summary
Prior GA treatment did not affect juvenile meristem competence to flower.
- Taxon
- Prunus aviumPrunus aviumt0
- Treatment
- prior GA treatmente0
- Outcome
- Juvenile meristem competence to flowere0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Juvenile meristem competence to flower was not affected by prior GA treatment”
t0“Prunus avium”
The same questions in other papers
paclobutrazol · phenology · Prunus avium (sweet cherry)Positive and negative results
1 in the opposite direction
- positive
Gibberellic acid · pest · Prunus avium (sweet cherry)Positive and negative results
1 in the opposite direction
- positive
Gibberellic acid · phenology · Prunus avium (sweet cherry)Positive and negative results
2 in the opposite direction
- negative
- no effect
pruning · phenology · Prunus avium (sweet cherry)Results agree
2 papers in the same direction as this paper
- no effect
- no effect
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.