Abstract
Abstract Gerbera is a very important plant widely grown for cut flowers. To check the influence of salinity and boron excess in nutrient solution, nine treatments as factorial combination of three sodium chloride (NaCl) (1, 15 and 30 mM) and three boron (B) (0.1, 1 and 2 mM) concentrations in the nutrient solution were applied during the gerbera cultivation. The effects of experimental treatments on gerbera growth, flowering and the interaction in morphological and nutritional aspects were tested. The formation of leaves, stems and flowers, flower dry mass and evapotranspiration (ET) were more negatively affected when plants were irrigated with 2 mM B than with 0.1 mM B concentration. High levels of boron (1 and 2 Mm) in nutrient solution resulted in leaf chlorosis and necrosis. The severity of leaf burn was correlated with leaf B content. Salinity acted as a protector against boron content in leaves and flowers at 1 Mm B. However, at the 2 Mm B in nutrient solution, leaf B accumulation was not reduced by the presence of NaCl but also increased with the increased levels of salinity. The external levels of boron used in this study, which were found to be the highest in the literature, and the high sensitivity of gerbera to boron, suggested that boron acted as the dominant factor. Lower external boron concentrations would be needed to establish to what extent salinity would be able to mitigate the negative effects of boron.
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Claims 7
Claim · model-written summary
Irrigation with 2 mM B more negatively affected formation of leaves, stems and flowers than 0.1 mM B.
- Treatment
- irrigated with 2 mM Be1
- Outcome
- formation of leaves, stems and flowerse1
- Direction
- more negatively affectede1
- Comparator
- 0.1 mM Be1
GerberaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e1“The formation of leaves, stems and flowers, flower dry mass and evapotranspiration (ET) were more negatively affected when plants were irrigated with 2 mM B than with 0.1 mM B concentration”
Claim · model-written summary
Irrigation with 2 mM B more negatively affected flower dry mass and evapotranspiration than 0.1 mM B.
- Treatment
- irrigated with 2 mM Be1
- Outcome
- flower dry mass and evapotranspiration (ET)e1
- Direction
- more negatively affectede1
- Comparator
- 0.1 mM Be1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e1“The formation of leaves, stems and flowers, flower dry mass and evapotranspiration (ET) were more negatively affected when plants were irrigated with 2 mM B than with 0.1 mM B concentration”
Claim · model-written summary
High boron levels of 1 and 2 mM in the nutrient solution caused leaf chlorosis and necrosis.
- Treatment
- High levels of boron (1 and 2 Mm) in nutrient solutione2
- Outcome
- leaf chlorosis and necrosise2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e2“High levels of boron (1 and 2 Mm) in nutrient solution resulted in leaf chlorosis and necrosis”
Claim · model-written summary
Severity of leaf burn was correlated with leaf boron content.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e3“The severity of leaf burn was correlated with leaf B content”
Claim · model-written summary
Salinity protected leaves and flowers against boron accumulation at 1 mM B.
- Treatment
- Salinitye4
- Outcome
- boron content in leaves and flowerse4
- Direction
- acted as a protector againste4
- Qualifier
- at 1 Mm Be4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e4“Salinity acted as a protector against boron content in leaves and flowers at 1 Mm B”
Claim · model-written summary
At 2 mM B, NaCl did not reduce leaf boron accumulation.
- Treatment
- NaCle5
- Outcome
- leaf B accumulatione5
- Direction
- was not reducede5
- Qualifier
- at the 2 Mm B in nutrient solutione5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e5“at the 2 Mm B in nutrient solution, leaf B accumulation was not reduced by the presence of NaCl but also increased with the increased levels of salinity”
Claim · model-written summary
At 2 mM B, leaf boron accumulation increased with increasing salinity.
- Treatment
- the increased levels of salinitye5
- Outcome
- leaf B accumulatione5
- Direction
- increasede5
- Qualifier
- at the 2 Mm B in nutrient solutione5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Growth, Evapotranspiration and Mineral Content of Gerbera Under Combined Salinity and Excess Boron”
e5“at the 2 Mm B in nutrient solution, leaf B accumulation was not reduced by the presence of NaCl but also increased with the increased levels of salinity”
The same questions in other papers
fertilization · physiology: pigments · GerberaPositive and negative results
2 in the opposite direction
- positive
- positive
irrigation · phenology · GerberaResults agree
1 paper in the same direction as this paper
- no effect
salinity · nutrient: content · GerberaResults agree
1 paper in the same direction as this paper
- negative
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.