Paper · 1992 · Journal of Experimental Botany

Phyllody Malformation in Flowers ofRosa×hybridacv. Motrea: Effects of Rootstocks, Flower Position, Growth Regulators and Season

YORAM MOR; NAFTALY ZIESLIN

12
claims
23
verbatim quotes
16
citations
4
research areas
—
Not open access

Abstract

Phyllody, a common malformation of Rosa×hybrida cv. Motrea, is characterized by the formation of vegetative structures in place of stamens and carpels. The incidence of phyllody in this cultivar is dependent on the type of the root system. The highest proportion of malformed flowers was found in ungrafted plants, this decreased in plants grafted on R. indica major and was lowest on R. canina inermis. Flowers formed on shoots, which were located closer to the roots, were more prone to phyllody than those grown on the upper part of the plants. The incidence of phyllody was lower in winter than in summer, while shading of the plants reduced the proportion of malformed flowers regardless of their root system and the season. Application of gibberellic acid (GA3) or benzylaminopurine (BAP) greatly promoted the incidence of phyllody, while paclobutrazol (PBZ) reduced it. The activity of endogenous cytokinins in the xylem exudates from ungrafted plants was higher than in exudates from those grafted on R. indica major, and the lowest activity was found in exudates from plants grafted on R. canina inermis. The involvement of plant hormones in the development of floral organs in rose flowers is discussed.

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Claims 12

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Rose phyllody replaced stamens and carpels with vegetative structures.

Taxon
Rosa×hybrida cv. Motreae0
Outcome
formation of vegetative structures in place of stamens and carpelse0

Verbatim

e0

“Phyllody, a common malformation of Rosa×hybrida cv. Motrea, is characterized by the formation of vegetative structures in place of stamens and carpels.”

✓ located verbatim in the source · abstract, characters 0–151 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Ungrafted rose plants had the highest proportion of malformed flowers.

Taxon
Rosa×hybrida cv. Motreat0
Material
ungrafted plantse0
Outcome
proportion of malformed flowerse0
Direction
higheste0

Verbatim

e0

“The highest proportion of malformed flowers was found in ungrafted plants, this decreased in plants grafted on R. indica major and was lowest on R. canina inermis.”

✓ located verbatim in the source · abstract, characters 240–403 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grafting on R. indica major reduced the proportion of malformed flowers versus ungrafted plants.

Taxon
Rosa×hybrida cv. Motreat0
Treatment
grafted on R. indica majore0
Outcome
proportion of malformed flowerse0
Direction
decreasede0
Comparator
ungrafted plantse0

Verbatim

e0

“The highest proportion of malformed flowers was found in ungrafted plants, this decreased in plants grafted on R. indica major and was lowest on R. canina inermis.”

✓ located verbatim in the source · abstract, characters 240–403 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

R. canina inermis rootstock had the lowest malformed flower proportion.

Taxon
Rosa×hybrida cv. Motreat0
Treatment
R. canina inermise0
Outcome
proportion of malformed flowerse0
Direction
loweste0
Comparator
R. indica majore0

Verbatim

e0

“The highest proportion of malformed flowers was found in ungrafted plants, this decreased in plants grafted on R. indica major and was lowest on R. canina inermis.”

✓ located verbatim in the source · abstract, characters 240–403 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Shoots closer to roots were more prone to phyllody than upper shoots.

Taxon
Rosa×hybrida cv. Motreat0
Organ / stage
shootse0
Outcome
phyllodye0
Direction
more pronee0
Comparator
upper part of the plantse0

Verbatim

e0

“Flowers formed on shoots, which were located closer to the roots, were more prone to phyllody than those grown on the upper part of the plants.”

✓ located verbatim in the source · abstract, characters 404–547 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Phyllody incidence was lower in winter than summer.

Taxon
Rosa×hybrida cv. Motreat0
Outcome
incidence of phyllodye0
Direction
lowere0
Comparator
summere0
Setting
wintere0

Verbatim

e0

“The incidence of phyllody was lower in winter than in summer, while shading of the plants reduced the proportion of malformed flowers regardless of their root system and the season.”

✓ located verbatim in the source · abstract, characters 548–729 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Shading reduced malformed flower proportion across root systems and seasons.

Taxon
Rosa×hybrida cv. Motreat0
Treatment
shadinge0
Outcome
proportion of malformed flowerse0
Direction
reducede0

Not reportedComparator

Verbatim

e0

“The incidence of phyllody was lower in winter than in summer, while shading of the plants reduced the proportion of malformed flowers regardless of their root system and the season.”

✓ located verbatim in the source · abstract, characters 548–729 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

GA3 application greatly increased phyllody incidence.

Taxon
Rosa×hybrida cv. Motreat0
Treatment
gibberellic acid (GA3)e0
Outcome
incidence of phyllodye0
Direction
promotede0

Not reportedComparator

Verbatim

e0

“Application of gibberellic acid (GA3) or benzylaminopurine (BAP) greatly promoted the incidence of phyllody, while paclobutrazol (PBZ) reduced it.”

✓ located verbatim in the source · abstract, characters 730–876 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

BAP application greatly increased phyllody incidence.

Taxon
Rosa×hybrida cv. Motreat0
Treatment
benzylaminopurine (BAP)e0
Outcome
incidence of phyllodye0
Direction
promotede0

Not reportedComparator

Verbatim

e0

“Application of gibberellic acid (GA3) or benzylaminopurine (BAP) greatly promoted the incidence of phyllody, while paclobutrazol (PBZ) reduced it.”

✓ located verbatim in the source · abstract, characters 730–876 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PBZ application reduced phyllody incidence.

Taxon
Rosa×hybrida cv. Motreat0
Treatment
paclobutrazol (PBZ)e0
Outcome
incidence of phyllodye0
Direction
reducede0

Not reportedComparator

Verbatim

e0

“Application of gibberellic acid (GA3) or benzylaminopurine (BAP) greatly promoted the incidence of phyllody, while paclobutrazol (PBZ) reduced it.”

✓ located verbatim in the source · abstract, characters 730–876 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Ungrafted plants had higher cytokinin activity in xylem exudates than R. indica major grafts.

Taxon
Rosa×hybrida cv. Motreat0
Material
ungrafted plantse0
Organ / stage
xylem exudatese0
Outcome
activity of endogenous cytokininse0
Direction
highere0
Comparator
R. indica majore0

Verbatim

e0

“The activity of endogenous cytokinins in the xylem exudates from ungrafted plants was higher than in exudates from those grafted on R. indica major, and the lowest activity was found in exudates from plants grafted on R. canina inermis.”

✓ located verbatim in the source · abstract, characters 877–1113 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

R. canina inermis grafts had the lowest cytokinin activity in xylem exudates.

Taxon
Rosa×hybrida cv. Motreat0
Material
R. canina inermise0
Organ / stage
xylem exudatese0
Outcome
activity of endogenous cytokininse0
Direction
loweste0

Verbatim

e0

“The activity of endogenous cytokinins in the xylem exudates from ungrafted plants was higher than in exudates from those grafted on R. indica major, and the lowest activity was found in exudates from plants grafted on R. canina inermis.”

✓ located verbatim in the source · abstract, characters 877–1113 · show in text ↑
t0

“Rosa×hybridacv. Motrea”

✓ located verbatim in the source · title, characters 35–57 · show in text ↑

N-benzyladenine · disease · Rosa hybrid cultivarPositive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 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.