Abstract
A Pot ex periment wa s c onducted at t he greenhouse of t he National R esearch Centre at D okki, Cairo, Egypt. During the winter season of 2004/2005 to evaluate the effect of salinity and salicylic acid on growth of maize plants c.v. Single H ybrid 1 0. T he treatments of salinity by irrigation wi th di luted Mediterranean sea water: tap water (250 ppm), 2000 and 4000 ppm and spraying salicylic acid in 200 ppm twice after 3 weeks from sowing and two weeks later. A negative relationship was detected bet ween vegetative growth par ameters and the increase i n s alt concentration i n i rrigation wat er. The area of green leaves w ere mostly decreased from 5102 cm2 in the plants irrigated by w ater c ontains 250 ppm salts (control) to be 2389 cm in those irrigated by water contained 4000 ppm (53.18 %). Moreover, dry weight 2 of stem, leaves and whole plant showed approximately similar response. The depression on stem, leaves and whole plants dry weight when irrigated by saline water of 4000 ppm amounted by 57.29, 47.43 and 51.43 % compare to the control. Spraying plants w ith salicylic acid in the rate of 2 00 ppm improved all growth characters i.e. plant height, number and area of green leaves, stem diameter and dry weight of stem, leaves and whole plant. The highest increment was shown in stem dry weight and the lowest in stem diameter. All amino acid concentrations were lowered by salinity except for proline and glycine. All determinate amino acid concentrations (except methionine) were increased with the application of salicylic acid (200ppm). On the other hand, methionine was negatively responded which slightly lowered. For plants irrigated with fresh water, SA gave its higher effect on cystine followed by that in arginine and tyrosine while the other amino acids were slightly affected. Serine phenyalanine and t yrosine showed approximately similar response. However, at 4000 ppm treatment, salicylic acid improved the concentration of arginine, lycine, serine and glutamic aci d. Moreover, proline co ncentration i ncreased when us ing s alicylic aci d foliar app lication and under sa lt stress.
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Claims 14
Claim · model-written summary
Irrigation with water containing 4000 ppm salts decreased maize green leaf area by 53.18% relative to the control (250 ppm).
- Organ / stage
- green leavese1
- Treatment
- water contained 4000 ppme1
- Outcome
- area of green leavese1
- Direction
- decreasede1
- Value
- 53.18 %e1
- Comparator
- controle1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e1“The area of green leaves w ere mostly decreased from 5102 cm2 in the plants irrigated by w ater c ontains 250 ppm salts (control) to be 2389 cm in those irrigated by water contained 4000 ppm (53.18 %)”
Claim · model-written summary
Saline irrigation at 4000 ppm decreased maize stem dry weight by 57.29% relative to the control.
- Organ / stage
- steme2
- Treatment
- saline water of 4000 ppme2
- Outcome
- dry weighte2
- Direction
- decreaseinferrede2
- Value
- 57.29e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e2“The depression on stem, leaves and whole plants dry weight when irrigated by saline water of 4000 ppm amounted by 57.29, 47.43 and 51.43 % compare to the control”
Claim · model-written summary
Saline irrigation at 4000 ppm decreased maize leaf dry weight by 47.43% relative to the control.
- Organ / stage
- leavese2
- Treatment
- saline water of 4000 ppme2
- Outcome
- dry weighte2
- Direction
- decreaseinferrede2
- Value
- 47.43e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e2“The depression on stem, leaves and whole plants dry weight when irrigated by saline water of 4000 ppm amounted by 57.29, 47.43 and 51.43 % compare to the control”
Claim · model-written summary
Saline irrigation at 4000 ppm decreased maize whole-plant dry weight by 51.43% relative to the control.
- Organ / stage
- whole plantse2
- Treatment
- saline water of 4000 ppme2
- Outcome
- dry weighte2
- Direction
- decreaseinferrede2
- Value
- 51.43e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e2“The depression on stem, leaves and whole plants dry weight when irrigated by saline water of 4000 ppm amounted by 57.29, 47.43 and 51.43 % compare to the control”
Claim · model-written summary
Spraying salicylic acid at 200 ppm improved maize growth characters.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e3“Spraying plants w ith salicylic acid in the rate of 2 00 ppm improved all growth characters i.e. plant height, number and area of green leaves, stem diameter and dry weight of stem, leaves and whole plant”
Claim · model-written summary
Salinity lowered maize amino acid concentrations, except proline and glycine.
- Treatment
- salinitye4
- Outcome
- amino acid concentrationse4
- Direction
- lowerede4
- Qualifier
- except for proline and glycinee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e4“All amino acid concentrations were lowered by salinity except for proline and glycine”
Claim · model-written summary
Proline concentration in maize increased with salicylic acid foliar application and under salt stress.
- Treatment
- salicylic acide5
- Outcome
- proline concentratione5
- Direction
- increasede5
- Qualifier
- foliar application and under salt stresse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e5“Moreover, proline co ncentration i ncreased when us ing s alicylic aci d foliar app lication and under sa lt stress”
Claim · model-written summary
Salicylic acid at 200 ppm increased maize amino acid concentrations, except methionine.
- Treatment
- salicylic acid (200ppm)e6
- Outcome
- amino acid concentrationse6
- Direction
- increasede6
- Qualifier
- except methioninee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e6“All determinate amino acid concentrations (except methionine) were increased with the application of salicylic acid (200ppm)”
Claim · model-written summary
Methionine responded negatively to salicylic acid at 200 ppm in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e6“All determinate amino acid concentrations (except methionine) were increased with the application of salicylic acid (200ppm)”
e7“On the other hand, methionine was negatively responded which slightly lowered”
Claim · model-written summary
At 4000 ppm salinity, salicylic acid improved the concentration of arginine, lycine and serine in maize.
- Treatment
- salicylic acide1
- Outcome
- the concentration of arginine, lycine, serinee1
- Direction
- improvede1
- Qualifier
- 4000 ppme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e1“However, at 4000 ppm treatment, salicylic acid improved the concentration of arginine, lycine, serine and glutamic aci d”
Claim · model-written summary
At 4000 ppm salinity, salicylic acid improved glutamic acid concentration in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e1“However, at 4000 ppm treatment, salicylic acid improved the concentration of arginine, lycine, serine and glutamic aci d”
Claim · model-written summary
With fresh water irrigation, salicylic acid had its highest effect on maize cystine, followed by arginine and tyrosine.
- Treatment
- SAe1
- Outcome
- cystinee1
- Direction
- higher effecte1
- Qualifier
- followed by that in arginine and tyrosinee1
- Comparator
- fresh watere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e1“For plants irrigated with fresh water, SA gave its higher effect on cystine followed by that in arginine and tyrosine while the other amino acids were slightly affected”
Claim · model-written summary
Serine, phenylalanine and tyrosine responded approximately similarly to salicylic acid in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e1“For plants irrigated with fresh water, SA gave its higher effect on cystine followed by that in arginine and tyrosine while the other amino acids were slightly affected”
e2“Serine phenyalanine and t yrosine showed approximately similar response”
Claim · model-written summary
A negative relationship was found between maize vegetative growth parameters and salt concentration in irrigation water.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Salicylic Acid and Salinity Effects on Growth of Maize Plants”
e1“A negative relationship was detected bet ween vegetative growth par ameters and the increase i n s alt concentration i n i rrigation wat er”
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