Abstract
Abstract A greenhouse experiment was conducted to evaluate the effects of gypsum, Zn, and intermittent saline irrigation on the growth, yield, and nutrition of rice plants grown in a coastal saline soil. Highly significant effects were detected in the treatments with various levels of salinity, gypsum, Zn, and their interactions on the growth, yield, and nutrition of the rice plants. Gypsum and Zn application significantly reduced the adverse effects of salinity and resulted in the production of the maximum number of tillers and in the tallest plant height. Reduction in grain yield was about 70 and 90% for saline irrigation applied at the rate of 8 and 16 mS/cm, respectively compared with tap water irrigation (0.6 mS/cm). The combination of gypsum and Zn produced a grain yield about 30, 8, and 20% higher than that of the control at 0.6, 8, and 16 mS/ cm salinity, respectively. Harvest index was reduced due to saline irrigation but gypsum and Zn were found to increase the harvest index of rice. Nitrogen and P contents of straw decreased with the increase in the salinity levels but gypsum and Zn had an additive effect on the N content. The treatments were found to be significant for the K, Ca, Mg, S, Zn, Na, and Cl contents of the rice plant. The Mg content increased up to 8 mS/cm level of salinity. The interactive effects of gypsum and Zn were found to be conducive to the increase of the K, Ca, Mg, S, Zn contents and decrease of the Na and Cl contents of the rice plant even at the highest salinity (16 mS/cm) level.
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Claims 18
Claim · model-written summary
Salinity, gypsum, Zn and their interactions had highly significant effects on growth, yield and nutrition of rice plants.
- Taxon
- rice plants
Oryza sativat0 - Treatment
- salinity, gypsum, Zn, and their interactionse1
- Outcome
- growth, yield, and nutritione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Highly significant effects were detected in the treatments with various levels of salinity, gypsum, Zn, and their interactions on the growth, yield, and nutrition of the rice plants”
t0“rice plants”
Claim · model-written summary
Gypsum and Zn application significantly reduced the adverse effects of salinity and gave the maximum number of tillers and the tallest plants.
- Taxon
- rice plantsOryza sativat0
- Treatment
- Gypsum and Zn applicatione1
- Outcome
- maximum number of tillers and in the tallest plant heighte1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Gypsum and Zn application significantly reduced the adverse effects of salinity and resulted in the production of the maximum number of tillers and in the tallest plant height”
t0“rice plants”
Claim · model-written summary
Grain yield was reduced by about 70% under saline irrigation at 8 mS/cm compared with tap water irrigation.
- Taxon
- rice plantsOryza sativat0
- Treatment
- saline irrigation applied at the rate of 8 and 16 mS/cme1
- Outcome
- grain yielde1
- Direction
- Reductione1
- Value
- about 70e1
- Qualifier
- 8e1
- Comparator
- tap water irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Reduction in grain yield was about 70 and 90% for saline irrigation applied at the rate of 8 and 16 mS/cm, respectively compared with tap water irrigation (0.6 mS/cm)”
t0“rice plants”
Claim · model-written summary
Grain yield was reduced by about 90% under saline irrigation at 16 mS/cm compared with tap water irrigation.
- Taxon
- rice plantsOryza sativat0
- Treatment
- saline irrigation applied at the rate of 8 and 16 mS/cme1
- Outcome
- grain yielde1
- Direction
- Reductione1
- Value
- 90%e1
- Qualifier
- 16 mS/cme1
- Comparator
- tap water irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Reduction in grain yield was about 70 and 90% for saline irrigation applied at the rate of 8 and 16 mS/cm, respectively compared with tap water irrigation (0.6 mS/cm)”
t0“rice plants”
Claim · model-written summary
The combination of gypsum and Zn gave a grain yield about 30% higher than the control at 0.6 mS/cm salinity.
- Taxon
- rice plantsOryza sativat0
- Treatment
- combination of gypsum and Zne1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 30e1
- Qualifier
- 0.6e1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The combination of gypsum and Zn produced a grain yield about 30, 8, and 20% higher than that of the control at 0.6, 8, and 16 mS/cm salinity, respectively”
t0“rice plants”
Claim · model-written summary
The combination of gypsum and Zn gave a grain yield about 8% higher than the control at 8 mS/cm salinity.
- Taxon
- rice plantsOryza sativat0
- Treatment
- combination of gypsum and Zne1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 8e1
- Qualifier
- 8e1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The combination of gypsum and Zn produced a grain yield about 30, 8, and 20% higher than that of the control at 0.6, 8, and 16 mS/cm salinity, respectively”
t0“rice plants”
Claim · model-written summary
The combination of gypsum and Zn gave a grain yield about 20% higher than the control at 16 mS/cm salinity.
- Taxon
- rice plantsOryza sativat0
- Treatment
- combination of gypsum and Zne1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 20%e1
- Qualifier
- 16 mS/cme1
- Comparator
- the controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The combination of gypsum and Zn produced a grain yield about 30, 8, and 20% higher than that of the control at 0.6, 8, and 16 mS/cm salinity, respectively”
t0“rice plants”
Claim · model-written summary
Harvest index of rice was reduced by saline irrigation.
- Taxon
- rice plantsOryza sativat0
- Treatment
- saline irrigatione1
- Outcome
- Harvest indexe1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Harvest index was reduced due to saline irrigation”
t0“rice plants”
Claim · model-written summary
Gypsum and Zn increased the harvest index of rice.
- Taxon
- rice plantsOryza sativat0
- Treatment
- gypsum and Zne1
- Outcome
- harvest indexe1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“gypsum and Zn were found to increase the harvest index of rice”
t0“rice plants”
Claim · model-written summary
Nitrogen and P contents of rice straw decreased with increasing salinity levels.
- Taxon
- rice plantsOryza sativat0
- Organ / stage
- strawe1
- Treatment
- salinity levelse1
- Outcome
- Nitrogen and P contentse1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Nitrogen and P contents of straw decreased with the increase in the salinity levels”
t0“rice plants”
Claim · model-written summary
Gypsum and Zn had an additive effect on the N content of rice.
- Taxon
- rice plantsOryza sativat0
- Treatment
- gypsum and Zne1
- Outcome
- N contente1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“gypsum and Zn had an additive effect on the N content”
t0“rice plants”
Claim · model-written summary
The treatments were significant for the K, Ca and Mg contents of the rice plant.
- Taxon
- rice plantsOryza sativat0
- Treatment
- The treatmentse1
- Outcome
- K, Ca, Mge1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The treatments were found to be significant for the K, Ca, Mg, S, Zn, Na, and Cl contents of the rice plant”
t0“rice plants”
Claim · model-written summary
The treatments were significant for the S, Zn and Na contents of the rice plant.
- Taxon
- rice plantsOryza sativat0
- Treatment
- The treatmentse1
- Outcome
- S, Zn, Nae1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The treatments were found to be significant for the K, Ca, Mg, S, Zn, Na, and Cl contents of the rice plant”
t0“rice plants”
Claim · model-written summary
The treatments were significant for the Cl content of the rice plant.
- Taxon
- rice plantsOryza sativat0
- Treatment
- The treatmentse1
- Outcome
- Cl contentse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The treatments were found to be significant for the K, Ca, Mg, S, Zn, Na, and Cl contents of the rice plant”
t0“rice plants”
Claim · model-written summary
Mg content of rice increased with salinity up to the 8 mS/cm level.
- Taxon
- rice plantsOryza sativat0
- Treatment
- salinitye1
- Outcome
- Mg contente1
- Direction
- increasede1
- Qualifier
- up to 8 mS/cm levele1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The Mg content increased up to 8 mS/cm level of salinity”
t0“rice plants”
Claim · model-written summary
The interactive effects of gypsum and Zn increased the K, Ca and Mg contents of rice, even at the highest salinity (16 mS/cm).
- Taxon
- rice plantsOryza sativat0
- Treatment
- gypsum and Zne1
- Outcome
- K, Ca, Mge1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The interactive effects of gypsum and Zn were found to be conducive to the increase of the K, Ca, Mg, S, Zn contents”
t0“rice plants”
Claim · model-written summary
The interactive effects of gypsum and Zn increased the S and Zn contents of rice, even at the highest salinity (16 mS/cm).
- Taxon
- rice plantsOryza sativat0
- Treatment
- gypsum and Zne1
- Outcome
- S, Zn contentse1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The interactive effects of gypsum and Zn were found to be conducive to the increase of the K, Ca, Mg, S, Zn contents”
t0“rice plants”
Claim · model-written summary
The interactive effects of gypsum and Zn decreased the Na and Cl contents of rice, even at the highest salinity (16 mS/cm).
- Taxon
- rice plantsOryza sativat0
- Treatment
- gypsum and Zne1
- Outcome
- Na and Cl contentse1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The interactive effects of gypsum and Zn were found to be conducive to the increase of the K, Ca, Mg, S, Zn contents and decrease of the Na and Cl contents”
t0“rice plants”
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