Abstract
Girdling and paclobutrazol have been related with the effects on the photosynthetic capacity and carbohydrate content of plants. The physiological changes caused by these methods distress the growth and development of plants in general. A field experiment was carried out from August 2021 to June 2022 on 5 years of open-field Mangifera indica cv. Harumanis trees grown at Malaysian Agriculture Research and Development Institute (MARDI), Serdang, Selangor. The objective of this experiment was to understand the relationship between girdling, paclobutrazol application, combined methods and untreated trees on plant photosynthetic performances and carbohydrate content in the leaves. The treatments were performed on 1st December 2021, and the measurements of leaf gas exchanges and carbohydrate content were performed 4th weeks later on fully expanded leaves shoot, experiencing similar light exposure. In the study, the combination of girdling and paclobutrazol application resulted in a significant decrease in photosynthetic rate (Pn), stomatal conductance (gs) and transpiration rate (Tr) but significantly increase in intercellular CO2 concentration (Ci) and carbohydrate content.
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Claims 2
Claim · model-written summary
Combined girdling and paclobutrazol significantly decreased photosynthetic rate, stomatal conductance, and transpiration.
- Taxon
- Mangifera indica
_from_India.jpg?width=60)
Mangifera indicae2 - Material
- cv. Harumanise2
- Treatment
- combination of girdling and paclobutrazol applicatione0
- Outcome
- photosynthetic rate (Pn), stomatal conductance (gs) and transpiration rate (Tr)e0
- Direction
- decreasee0
- Comparator
- untreated treese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“the combination of girdling and paclobutrazol application resulted in a significant decrease in photosynthetic rate (Pn), stomatal conductance (gs) and transpiration rate (Tr)”
e1“untreated trees”
e2“Mangifera indica cv. Harumanis”
Claim · model-written summary
Combined treatment significantly increased intercellular CO2 concentration and carbohydrate content.
- Taxon
- Mangifera indicaMangifera indicae2
- Material
- cv. Harumanise2
- Treatment
- combination of girdling and paclobutrazol applicatione0
- Outcome
- intercellular CO2 concentration (Ci) and carbohydrate contente0
- Direction
- increasee0
- Comparator
- untreated treese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of girdling and paclobutrazol application resulted in a significant decrease in photosynthetic rate (Pn), stomatal conductance (gs) and transpiration rate (Tr) but significantly increase in intercellular CO2 concentration (Ci) and carbohydrate content.”
e1“untreated trees”
e2“Mangifera indica cv. Harumanis”
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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.