Abstract
ABSTRACT The aim was to analyze the establishment of young “Green Dwarf” coconut plants in soils affected by salts and under water stress, by evaluating leaf area, biomass production and allocation. In the experiment, conducted in protected environment in Fortaleza, CE, in statistical design of randomized blocks in a split plot arrangement, the effects of different water deficit levels (plots) were evaluated, by imposing different percentages of replacement of water losses by potential crop evapotranspiration - ETpc (20, 40, 60, 80 and 100%), associated with subplots consisting of increasing soil salinity levels (1.72, 6.25, 25.80 and 40.70 dS m-1) provided by soil collected at different parts of the Morada Nova Irrigated Perimeter - PIMN. Leaf area and biomass production were sharply reduced by the conditions of water stress and high soil salinity, apparently being more critical to the crop under water restriction condition. The degree of water stress can increase the susceptibility to salinity and plants can be considered, in general terms, as moderately tolerant to the effects of salinity, when combined with water deficiency. Coconut seedlings show full capacity of establishment in PIMN saline soils, corresponding to the level of electrical conductivity of 6.50 dS m-1, but only when the water supply remains adequate. For higher salinity levels, plants survive, but their size is reduced by around 50%, even when fully irrigated.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 6
Claim · model-written summary
Water stress sharply reduced coconut leaf area and biomass production.
- Taxon
- coconutt0
- Treatment
- water stresse0
- Outcome
- Leaf area and biomass productione0
- Direction
- sharply reducede0
Not reportedComparator
Verbatim
e0“Leaf area and biomass production were sharply reduced by the conditions of water stress”
t0“ESTABLISHMENT OF YOUNG “DWARF GREEN” COCONUT PLANTS IN SOIL AFFECTED BY SALTS AND UNDER WATER DEFICIT”
Claim · model-written summary
High soil salinity sharply reduced coconut leaf area and biomass production.
- Taxon
- coconutt0
- Treatment
- high soil salinitye0
- Outcome
- Leaf area and biomass productione0
- Direction
- sharply reducede0
Not reportedComparator
Verbatim
e0“Leaf area and biomass production were sharply reduced by the conditions of water stress and high soil salinity”
t0“ESTABLISHMENT OF YOUNG “DWARF GREEN” COCONUT PLANTS IN SOIL AFFECTED BY SALTS AND UNDER WATER DEFICIT”
Claim · model-written summary
Water stress increased susceptibility to salinity.
Verbatim
e0“The degree of water stress can increase the susceptibility to salinity”
t0“ESTABLISHMENT OF YOUNG “DWARF GREEN” COCONUT PLANTS IN SOIL AFFECTED BY SALTS AND UNDER WATER DEFICIT”
Claim · model-written summary
The authors classified coconut as moderately tolerant to salinity with water deficiency.
Verbatim
e0“plants can be considered, in general terms, as moderately tolerant to the effects of salinity, when combined with water deficiency”
t0“ESTABLISHMENT OF YOUNG “DWARF GREEN” COCONUT PLANTS IN SOIL AFFECTED BY SALTS AND UNDER WATER DEFICIT”
Claim · model-written summary
Coconut seedlings established fully in PIMN saline soils at 6.50 dS m-1 with adequate water.
Verbatim
e0“Coconut seedlings show full capacity of establishment in PIMN saline soils, corresponding to the level of electrical conductivity of 6.50 dS m-1, but only when the water supply remains adequate”
t0“ESTABLISHMENT OF YOUNG “DWARF GREEN” COCONUT PLANTS IN SOIL AFFECTED BY SALTS AND UNDER WATER DEFICIT”
Claim · model-written summary
At higher salinity, coconut plants survived but were about 50% smaller even with full irrigation.
Verbatim
e0“For higher salinity levels, plants survive, but their size is reduced by around 50%, even when fully irrigated”
t0“ESTABLISHMENT OF YOUNG “DWARF GREEN” COCONUT PLANTS IN SOIL AFFECTED BY SALTS AND UNDER WATER DEFICIT”
The same questions in other papers
drought · yield · Cocos nucifera (coconut palm)Results 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.