Abstract
Two experiments in cemented plots were carried out during 2012 and 2013 summer seasons at Soil Salinity and Alkalinity Laboratory, Alexandria, Egypt, to study the effect of three levels of irrigation water salinity (0.5, 2.75, 5.5 dS/m) and foliar application of salicylic acid (0, 100, 200 ppm) on growth, grain yield, and yield components of Maize. Split plot with four replicates was the experimental design. The results revealed that at mid-season, irrigation with saline water significantly decreased plant height (cm), plant fresh weight (g), and plant dry weight (g). However, number of leaves/plant, leaves area/plant (m2), and leaf area index were not significantly affected. Also, at mid-season foliar spraying with salicylic acid significantly increased plant fresh weight (g), and plant dry weight (g). However, plant height (cm), number of leaves/plant, leaves area/plant (m2), and leaf area index were not significantly affected. At end-season irrigation with saline water significantly decreased ear height (cm), ear weight (g), number of grains/row, 100 kernel weight (g), grain yield (g/plot), biological yield (g/plot), straw yield (g/plot), and harvest index while number of rows/ear was not significantly affected. Also, at end-season foliar application of salicylic acid significantly increased all the studied parameters except for ear height (cm), number of rows/ear, and harvest index. The interaction between salinity and salicylic acid was not significant for all the studied parameters except for grain yield meaning that every factor is acting independently from each other. In conclusion, salicylic acid could be used as an antioxidants or potential growth regulator to improve corn growth and grain yield under salinity conditions.
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Claims 13
Claim · model-written summary
Saline irrigation significantly decreased plant height (cm) at mid-season.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation with saline water significantly decreased plant height (cm), plant fresh weight (g), and plant dry weight (g)”
t0“Maize”
Claim · model-written summary
Saline irrigation significantly decreased plant fresh weight (g) at mid-season.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation with saline water significantly decreased plant height (cm), plant fresh weight (g), and plant dry weight (g)”
t0“Maize”
Claim · model-written summary
Saline irrigation significantly decreased plant dry weight (g) at mid-season.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation with saline water significantly decreased plant height (cm), plant fresh weight (g), and plant dry weight (g)”
t0“Maize”
Claim · model-written summary
Saline irrigation did not significantly affect leaf number, leaf area, or leaf area index at mid-season.
- Treatment
- irrigation with saline watere1
- Outcome
- number of leaves/plant, leaves area/plant (m2), and leaf area indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of leaves/plant, leaves area/plant (m2), and leaf area index were not significantly affected”
e1“at mid-season, irrigation with saline water”
t0“Maize”
Claim · model-written summary
Salicylic acid spraying significantly increased plant fresh and dry weights at mid-season.
- Treatment
- foliar spraying with salicylic acide0
- Outcome
- plant fresh weight (g), and plant dry weight (g)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar spraying with salicylic acid significantly increased plant fresh weight (g), and plant dry weight (g)”
t0“Maize”
Claim · model-written summary
Salicylic acid spraying did not significantly affect height, leaf number, leaf area, or leaf area index at mid-season.
- Treatment
- foliar spraying with salicylic acide1
- Outcome
- plant height (cm), number of leaves/plant, leaves area/plant (m2), and leaf area indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height (cm), number of leaves/plant, leaves area/plant (m2), and leaf area index were not significantly affected”
e1“foliar spraying with salicylic acid”
t0“Maize”
Claim · model-written summary
Saline irrigation significantly decreased ear height, ear weight, grains per row, 100 kernel weight, grain yield, biological yield, straw yield, and harvest index at end-season.
- Treatment
- irrigation with saline watere0
- Outcome
- ear height (cm), ear weight (g), number of grains/row, 100 kernel weight (g), grain yield (g/plot), biological yield (g/plot), straw yield (g/plot), and harvest indexe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation with saline water significantly decreased ear height (cm), ear weight (g), number of grains/row, 100 kernel weight (g), grain yield (g/plot), biological yield (g/plot), straw yield (g/plot), and harvest index”
t0“Maize”
Claim · model-written summary
Saline irrigation did not significantly affect rows per ear at end-season.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of rows/ear was not significantly affected”
e1“irrigation with saline water significantly decreased ear height (cm)”
t0“Maize”
Claim · model-written summary
Salicylic acid significantly increased studied end-season traits other than ear height, rows per ear, and harvest index.
- Treatment
- foliar application of salicylic acide0
- Outcome
- all the studied parameterse0
- Direction
- increasede0
- Qualifier
- except for ear height (cm), number of rows/ear, and harvest indexe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of salicylic acid significantly increased all the studied parameters except for ear height (cm), number of rows/ear, and harvest index”
t0“Maize”
Claim · model-written summary
Salicylic acid did not significantly increase ear height, rows per ear, or harvest index at end-season.
- Treatment
- foliar application of salicylic acide0
- Outcome
- ear height (cm), number of rows/ear, and harvest indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar application of salicylic acid significantly increased all the studied parameters except for ear height (cm), number of rows/ear, and harvest index”
t0“Maize”
Claim · model-written summary
Salinity and salicylic acid interacted significantly only for grain yield.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between salinity and salicylic acid was not significant for all the studied parameters except for grain yield”
t0“Maize”
Claim · model-written summary
Salinity and salicylic acid interaction was not significant for the other studied traits.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between salinity and salicylic acid was not significant for all the studied parameters except for grain yield”
t0“Maize”
Claim · model-written summary
The authors propose salicylic acid to improve maize growth and yield under salinity.
- Treatment
- salicylic acide0
- Outcome
- improve corn growth and grain yielde0
- Qualifier
- under salinity conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salicylic acid could be used as an antioxidants or potential growth regulator to improve corn growth and grain yield under salinity conditions”
t0“Maize”
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