Abstract
Root restriction has been reported to reduce fruit yield, the incidence of blossom end rot (BER) and K concentration in tomato ( Lycopersicon esculentum L. `F121') plant organs. The objectives of the present work were to study the effect of root restriction, and combination of K and Ca solution concentrations, on greenhouse tomato fruit yield, quality and cation uptake. Root restriction reduced total yield but improved fruit quality by increasing the dry matter concentration and reducing the incidence of BER. Increasing the K concentration from 5.0 to 10 mmol·L -1 reduced the marketable yield, due to increased incidence of BER. Root restriction decreased K concentration and K/Ca ratio in tomato plant organs, but had no effect on K uptake rate per unit root fresh weight. Increasing K concentration from 2.5 to 10 mmol·L -1 increased the K concentration in plant organs and K uptake rate, but reduced that of Ca. In contrast, increasing Ca concentration in the solution had no effect on K concentration in plant organs and K uptake rate. The incidence of BER correlated well with K/Ca concentration ratio in the leaves, whereas a poor correlation was obtained with K/Ca concentration ratio in ripe fruit.
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Claims 12
Claim · model-written summary
Root restriction reduced total tomato yield.
Not reportedTaxonComparator
Verbatim
e0“Root restriction reduced total yield”
Claim · model-written summary
Root restriction increased fruit dry matter concentration.
Not reportedTaxonComparator
Verbatim
e0“Root restriction reduced total yield but improved fruit quality by increasing the dry matter concentration”
Claim · model-written summary
Root restriction reduced blossom end rot incidence.
Not reportedTaxonComparator
Verbatim
e0“Root restriction reduced total yield but improved fruit quality by increasing the dry matter concentration and reducing the incidence of BER”
Claim · model-written summary
Increasing solution K from 5.0 to 10 mmol·L -1 reduced marketable yield.
Not reportedTaxonComparator
Verbatim
e0“Increasing the K concentration from 5.0 to 10 mmol·L -1 reduced the marketable yield”
Claim · model-written summary
Increasing solution K from 5.0 to 10 mmol·L -1 increased blossom end rot incidence.
Not reportedTaxonComparator
Verbatim
e0“Increasing the K concentration from 5.0 to 10 mmol·L -1 reduced the marketable yield, due to increased incidence of BER”
Claim · model-written summary
Root restriction decreased K concentration and K/Ca ratio in tomato organs.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- plant organse0
- Treatment
- Root restrictione0
- Outcome
- K concentration and K/Ca ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root restriction decreased K concentration and K/Ca ratio in tomato plant organs”
Claim · model-written summary
Root restriction had no effect on K uptake rate per unit root fresh weight.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Root restrictione0
- Outcome
- K uptake rate per unit root fresh weighte0
- Direction
- had no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root restriction decreased K concentration and K/Ca ratio in tomato plant organs, but had no effect on K uptake rate per unit root fresh weight”
Claim · model-written summary
Increasing K from 2.5 to 10 mmol·L -1 increased organ K concentration and K uptake rate.
- Treatment
- K concentration from 2.5 to 10 mmol·L -1e0
- Outcome
- K concentration in plant organs and K uptake ratee0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“Increasing K concentration from 2.5 to 10 mmol·L -1 increased the K concentration in plant organs and K uptake rate”
Claim · model-written summary
Increasing K from 2.5 to 10 mmol·L -1 reduced Ca uptake.
Not reportedTaxonComparator
Verbatim
e0“Increasing K concentration from 2.5 to 10 mmol·L -1 increased the K concentration in plant organs and K uptake rate, but reduced that of Ca”
Claim · model-written summary
Increasing solution Ca did not affect organ K concentration or K uptake rate.
- Treatment
- increasing Ca concentration in the solutione0
- Outcome
- K concentration in plant organs and K uptake ratee0
- Direction
- had no effecte0
Not reportedTaxonComparator
Verbatim
e0“increasing Ca concentration in the solution had no effect on K concentration in plant organs and K uptake rate”
Claim · model-written summary
Blossom end rot incidence correlated well with leaf K/Ca ratio.
Not reportedTaxonDirection
Verbatim
e0“The incidence of BER correlated well with K/Ca concentration ratio in the leaves”
Claim · model-written summary
Blossom end rot incidence had a poor correlation with ripe-fruit K/Ca ratio.
Not reportedTaxonDirection
Verbatim
e0“a poor correlation was obtained with K/Ca concentration ratio in ripe fruit”
The same questions in other papers
calcium atom · nutrient: content · Solanum lycopersicum (tomato)Results differ
9 papers in the same direction as this paper · 43 in the opposite direction
- positive
- positive
- positive
49 papers more in this group
See all 53 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.