Abstract
ABSTRACT Using saline water for irrigation relies on strategies that include selecting salt-tolerant cultivars and leaching salts away from zones close to the roots. A greenhouse experiment was carried out to assess early growth and biomass production of two Eucalyptus clones (E. grandis × E. urophylla), CO 865 and CO 1407, irrigated with saline water and under different leaching fractions. Treatments were laid out in a randomized block design and arranged in a 4 × 2 + 2 factorial scheme: four leaching fractions (3, 10, 20, and 30 % of crop water demand for plants irrigated with saline water), two Eucalyptus clones (VCC 865 and CO 1407), and two additional treatments, one for each clone, conventionally irrigated with fresh water. The treatments were replicated four times. Measurements were made at 114 days after transplanting. Soil salinity decreased with increasing leaching fraction where VCC 865 was grown; however, leaf dry weight production was lower in treatments irrigated with saline water. Compared to fresh water-irrigated plants, irrigation with saline water resulted in lower: canopy diameter, leaf number, dry leaf mass, dry root mass, aerial parts dry mass, aerial part/root ratio, and total plant dry weight. Overall, the VCC 865 Eucalyptus clone performed better under saline irrigation than CO 1407.
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Claims 6
Claim · model-written summary
Soil salinity decreased with increasing leaching fraction where VCC 865 was grown.
- Taxon
- Eucalyptus
.jpg?width=60)
Eucalyptust0 - Material
- VCC 865e0
- Treatment
- increasing leaching fractione0
- Outcome
- Soil salinitye0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Soil salinity decreased with increasing leaching fraction where VCC 865 was grown”
t0“Eucalyptus”
Claim · model-written summary
Saline irrigation reduced leaf dry weight production.
- Taxon
- EucalyptusEucalyptust0
- Treatment
- saline watere0
- Outcome
- leaf dry weight productione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf dry weight production was lower in treatments irrigated with saline water.”
t0“Eucalyptus”
Claim · model-written summary
Saline irrigation lowered canopy diameter and leaf number relative to fresh water irrigation.
- Taxon
- EucalyptusEucalyptust0
- Treatment
- irrigation with saline watere0
- Outcome
- canopy diameter, leaf numbere0
- Direction
- lowere0
- Comparator
- fresh water-irrigated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to fresh water-irrigated plants, irrigation with saline water resulted in lower: canopy diameter, leaf number, dry leaf mass, dry root mass, aerial parts dry mass, aerial part/root ratio, and total plant dry weight.”
t0“Eucalyptus”
Claim · model-written summary
Saline irrigation lowered dry leaf mass, dry root mass and aerial parts dry mass.
- Taxon
- EucalyptusEucalyptust0
- Treatment
- irrigation with saline watere0
- Outcome
- dry leaf mass, dry root mass, aerial parts dry masse0
- Direction
- lowere0
- Comparator
- fresh water-irrigated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to fresh water-irrigated plants, irrigation with saline water resulted in lower: canopy diameter, leaf number, dry leaf mass, dry root mass, aerial parts dry mass, aerial part/root ratio, and total plant dry weight.”
t0“Eucalyptus”
Claim · model-written summary
Saline irrigation lowered aerial part/root ratio and total plant dry weight.
- Taxon
- EucalyptusEucalyptust0
- Treatment
- irrigation with saline watere0
- Outcome
- aerial part/root ratio, and total plant dry weighte0
- Direction
- lowere0
- Comparator
- fresh water-irrigated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to fresh water-irrigated plants, irrigation with saline water resulted in lower: canopy diameter, leaf number, dry leaf mass, dry root mass, aerial parts dry mass, aerial part/root ratio, and total plant dry weight.”
t0“Eucalyptus”
Claim · model-written summary
VCC 865 performed better under saline irrigation than CO 1407.
- Taxon
- EucalyptusEucalyptuse0
- Material
- VCC 865e0
- Treatment
- saline irrigatione0
- Outcome
- performed bettere0
- Direction
- bettere0
- Comparator
- CO 1407e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overall, the VCC 865 Eucalyptus clone performed better under saline irrigation than CO 1407.”
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