Abstract
The aim of this study was to evaluate effects of different proportions of calcium silicate (CaSiO3) on leaf water potentials, gas exchange and production parameters in Zea mays plants exposed to different irrigation depths. The experiment was organized as factorial scheme in a completely randomized design with five calcium silicate levels (0, 25, 50, 75, and 100% of CaSiO3 indicating the liming of the soil) and five irrigation depths (30, 70, 100, 130, and 160% of necessary to water reposition in this soil). The parameters evaluated in soil were chemical properties before and after the application of calcium silicate and matrix potential, while in plant the water potentials, transpiration rate, stomatal conductance, net photosynthetic rate, grain production, and matter of 100 seeds were measured. The results showed that application of 100% of calcium silicate promoted the values of predawn and midday water potentials. The beneficial effects were also observed in stomatal conductance, net photosynthetic rate and photosynthetic water use efficiency, when applied at the irrigation depths of 70, 100, 130 and 160% of necessary to water reposition in the soil. Despite that calcium silicate significantly promoted the gas exchange, the increment was not transferred to grain production and matter of 100 seeds. This study proved that irrigation depth of 100% is adequate for this crop.
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Claims 4
Claim · model-written summary
Calcium silicate at 100% promoted predawn and midday water potentials in maize.
- Treatment
- application of 100% of calcium silicatee2
- Outcome
- predawn and midday water potentialse2
- Direction
- promotede2
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The aim of this study was to evaluate effects of different proportions of calcium silicate (CaSiO3) on leaf water potentials, gas exchange and production parameters in Zea mays plants exposed to different irrigation depths”
e2“The results showed that application of 100% of calcium silicate promoted the values of predawn and midday water potentials”
Claim · model-written summary
Calcium silicate had beneficial effects on stomatal conductance, net photosynthetic rate and photosynthetic water use efficiency at several irrigation depths in maize.
- Treatment
- calcium silicatee1
- Outcome
- stomatal conductance, net photosynthetic rate and photosynthetic water use efficiencye3
- Direction
- beneficial effectse3
- Qualifier
- irrigation depths of 70, 100, 130 and 160% of necessary to water reposition in the soile3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The aim of this study was to evaluate effects of different proportions of calcium silicate (CaSiO3) on leaf water potentials, gas exchange and production parameters in Zea mays plants exposed to different irrigation depths”
e3“The beneficial effects were also observed in stomatal conductance, net photosynthetic rate and photosynthetic water use efficiency, when applied at the irrigation depths of 70, 100, 130 and 160% of necessary to water reposition in the soil”
Claim · model-written summary
The increase in gas exchange from calcium silicate was not transferred to maize grain production or the mass of 100 seeds.
- Treatment
- calcium silicatee4
- Outcome
- grain production and matter of 100 seedse4
- Direction
- not transferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The aim of this study was to evaluate effects of different proportions of calcium silicate (CaSiO3) on leaf water potentials, gas exchange and production parameters in Zea mays plants exposed to different irrigation depths”
e4“Despite that calcium silicate significantly promoted the gas exchange, the increment was not transferred to grain production and matter of 100 seeds”
Claim · model-written summary
An irrigation depth of 100% is adequate for maize.
- Outcome
- irrigation depth of 100%e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CaSiO3 improves water potential and gas exchange but not contribute to the production parameters of maize plants”
e5“This study proved that irrigation depth of 100% is adequate for this crop”
The same questions in other papers
calcium silicate · yield · Zea mays (maize)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.