Abstract
ABSTRACT High salt concentrations in soil restricts establishment of direct-seeded tomato Lycopersicon esculentum Mill. Effects of four irrigation water salinity levels (0.5, 2.5, 5, and 10 ds·m−1) and four nitrogen fertilizer rates (0, 5, 10, and 15 mM) on germination, emergence, and seedling growth of tomato cvs. Pascal, Red Stone, Shohba, Super Marmand, and Tanshet Star were investigated in a greenhouse. Germination percentage, germination rate, emergence percentage, and emergence rate were decreased and delayed with increasing salinity, from 2.5 ds·m−1 to 10 ds·m−1, in all cultivars. All seedling growth characters, except seedling height, were decreased with increasing salinity levels and enhanced with increased N levels. At the germination and emergence stages, cvs. Pascal and Tanshet Star were more tolerant to salinity level than cvs. Shohba, Super Marmand, and Red Stone. The interaction between salinity and N levels was significant for seedling leaf numbers and fresh and dry weight, indicating that N fertilization may reduce negative effects of salinity. However, the results of other characters did not describe any clear trend to indicate that N levels had a direct effect on salinity induced decreased growth. KEYWORDS: Lycopersicon esculentum cultivarsalinity toleranceseedling growth
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Claims 8
Claim · model-written summary
Increasing salinity from 2.5 to 10 ds·m−1 decreased and delayed germination percentage and rate in all cultivars.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- increasing salinitye0
- Outcome
- Germination percentage, germination ratee0
- Direction
- decreased and delayede0
- Qualifier
- from 2.5 ds·m−1 to 10 ds·m−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination percentage, germination rate, emergence percentage, and emergence rate were decreased and delayed with increasing salinity, from 2.5 ds·m−1 to 10 ds·m−1, in all cultivars.”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Increasing salinity decreased and delayed emergence percentage and rate in all cultivars.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- increasing salinitye0
- Outcome
- emergence percentage, and emergence ratee0
- Direction
- decreased and delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination percentage, germination rate, emergence percentage, and emergence rate were decreased and delayed with increasing salinity, from 2.5 ds·m−1 to 10 ds·m−1, in all cultivars.”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Increasing salinity decreased seedling growth characters except height.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- increasing salinity levelse0
- Outcome
- seedling growth characterse0
- Direction
- decreasede0
- Qualifier
- except seedling heighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All seedling growth characters, except seedling height, were decreased with increasing salinity levels”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Increased nitrogen enhanced seedling growth characters except height.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- increased N levelse0
- Outcome
- seedling growth characterse0
- Direction
- enhancede0
- Qualifier
- except seedling heighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All seedling growth characters, except seedling height, were decreased with increasing salinity levels and enhanced with increased N levels.”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Pascal and Tanshet Star were more salinity tolerant at germination and emergence than Shohba, Super Marmand and Red Stone.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- Pascal and Tanshet Stare0
- Organ / stage
- germination and emergence stagese0
- Outcome
- more tolerant to salinity levele0
- Direction
- more tolerante0
- Comparator
- Shohba, Super Marmand, and Red Stonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the germination and emergence stages, cvs. Pascal and Tanshet Star were more tolerant to salinity level than cvs. Shohba, Super Marmand, and Red Stone.”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Salinity and nitrogen interacted significantly for seedling leaf numbers.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinity and N levelse0
- Outcome
- seedling leaf numberse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between salinity and N levels was significant for seedling leaf numbers and fresh and dry weight”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Salinity and nitrogen interacted significantly for seedling fresh and dry weight.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinity and N levelse0
- Outcome
- fresh and dry weighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between salinity and N levels was significant for seedling leaf numbers and fresh and dry weight”
t0“Seedling Growth of Tomato”
Claim · model-written summary
Other measured characters did not show a clear trend for a direct nitrogen effect on salinity reduced growth.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N levelse0
- Outcome
- other characters did not describe any clear trende0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the results of other characters did not describe any clear trend to indicate that N levels had a direct effect on salinity induced decreased growth”
t0“Seedling Growth of Tomato”
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See all 300 papers →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.