Abstract
Abstract Apple trees ( Malus domestica Borkh. ‘Spartan’ grafted on MM 106 rootstock) planted in 1976 in an orchard at Beltsville, Md., were treated with paclobutrazol a gibberellin biosynthesis inhibitor, in Spring 1982 and again in 1983. In 1982, paclobutrazol [50 wettable powder (WP)] was applied as a foliage spray on 4, 14, and 25 May 1982, at 333 mgliter −1 . On 27 Apr. 1983, trunks of these trees were painted with 75 g·liter −1 of paclobutrazol. Paclobutrazol did not inhibit shoot growth in 1983 but it retarded the shoot growth significantly during 1984. The carbohydrate content of paclobutrazol-treated wood was generally higher at all sampling dates from the winter dormant period through growth resumption in the spring. Negative correlation coefficients were found between starch and soluble carbohydrates in the wood during the winter sampling dates, whereas positive correlation coefficients were evident during the spring growth resumption period. The increase in carbohydrates induced by the treatment was similar in both years, when growth was not inhibited (1983) or inhibited (1984), indicated that paclobutrazol has an effect on carbohydrate metabolism as well as growth. Chemical name used: β-[(4-chlorophenyl)methyl]-α-(l,l-dimethylethyl)-1 H -1,2,4-triazole-1 -ethanol (paclobutrazol).
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Paclobutrazol did not inhibit shoot growth of apple trees in 1983.
- Taxon
- Malus domestica
Malus domesticae0 - Treatment
- Paclobutrazole1
- Outcome
- shoot growthe1
- Direction
- did not inhibite1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“Paclobutrazol did not inhibit shoot growth in 1983”
Claim · model-written summary
Paclobutrazol significantly retarded shoot growth of apple trees during 1984.
- Taxon
- Malus domesticaMalus domesticae0
- Treatment
- ite1
- Outcome
- shoot growthe1
- Direction
- retardede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“it retarded the shoot growth significantly during 1984”
Claim · model-written summary
Carbohydrate content of paclobutrazol-treated apple wood was generally higher at all sampling dates from winter dormancy through spring growth resumption.
- Taxon
- Malus domesticaMalus domesticae0
- Organ / stage
- woode1
- Treatment
- paclobutrazole1
- Outcome
- carbohydrate contente1
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“The carbohydrate content of paclobutrazol-treated wood was generally higher at all sampling dates”
Claim · model-written summary
Starch and soluble carbohydrates in apple wood were negatively correlated during the winter sampling dates.
- Taxon
- Malus domesticaMalus domesticae0
- Organ / stage
- woode1
- Outcome
- starch and soluble carbohydratese1
- Direction
- Negativee1
- Qualifier
- winter sampling datese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“Negative correlation coefficients were found between starch and soluble carbohydrates in the wood during the winter sampling dates, whereas positive correlation coefficients were evident during the spring growth resumption period”
Claim · model-written summary
Starch and soluble carbohydrates in apple wood were positively correlated during the spring growth resumption period.
- Taxon
- Malus domesticaMalus domesticae0
- Organ / stage
- woode1
- Outcome
- starch and soluble carbohydratese1
- Direction
- positivee1
- Qualifier
- spring growth resumption periode1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“Negative correlation coefficients were found between starch and soluble carbohydrates in the wood during the winter sampling dates, whereas positive correlation coefficients were evident during the spring growth resumption period”
Claim · model-written summary
The paclobutrazol-induced increase in carbohydrates was similar in both years, whether shoot growth was not inhibited (1983) or inhibited (1984).
- Taxon
- Malus domesticaMalus domesticae0
- Outcome
- increase in carbohydratese1
- Qualifier
- similar in both yearse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“The increase in carbohydrates induced by the treatment was similar in both years, when growth was not inhibited (1983) or inhibited (1984)”
Claim · model-written summary
The authors conclude that paclobutrazol affects carbohydrate metabolism as well as growth.
- Taxon
- Malus domesticaMalus domesticae0
- Treatment
- paclobutrazole1
- Outcome
- carbohydrate metabolisme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malus domestica”
e1“paclobutrazol has an effect on carbohydrate metabolism as well as growth”
The same questions in other papers
paclobutrazol · growth · Malus domestica (apple)Results differ
7 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
17 papers more in this group
See all 21 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.