Abstract
The present studies were carried out to ascertain the influence of nitrogen, phosphorus and potassium nutrition on the growth and the flower formation of “Fukujyu No. 2”tomato seedlings. The experiments were conducted by means of sand culture with the following culture solution as the standards.Salts ConcentrationNH4NO3 228.6mg/l N: 120ppmCa(NO3)2•4H2O 337.3mg/l P: 60ppmCa(H2PO4)2 226.3mg/l K: 60ppmK2SO4 207.3mg/lMgSO4•7H2O 245.9mg/lFeCl3•6H2O traceMnCl2•4H2O traceH3BO3 traceZnSO4•7H2O trace1. Effect of nitrogen level on the vegetative and reproductive responses.Tomato seedlings were grown under the three levels of nitrogen (5, 20 and 120ppm) for 50_??_60 days from cotyledon expansion.The higher the concentration of nitrogen in the solution, the more vigorous the plants growth and the earlier the flower buds differentiation, resulting in the decrease in the number of leaves to the first inflorescence, and in the increased number of flower and the acceleration of their development.2. Effect of nitrogen level asscociated with light intensity on the vegetative and reproductive responses. Light and nutrients were controlled in all the combinations of three different nitrogen levels (20, 80 and 160ppm) with two light intensities (100 and 50 per cent of natural day light).The higher the level of nitrogen, the more vigorous the plant growth, the earlier and the more in number of flower bud differentiation and development under the higher light intensity. Under the lower light intensity, on the other hand, the higher level of nitrogen (160ppm) restricted the plant growth and retarded the flower bud differentiation, resulting in the less number of flowers.3. Effect of the level of phosphorus on the vegetative and reproductive responses.Seedlings were grown under the different phosphorus supply (0.1, 0.5, 2, 10, 60 and -180ppm).The higher the phosphorus level, the more vigorous the growth, and earlier and much more flower buds differentiated with the decrease in the number of leaves to the first inflorescence, and their development was accelerated.4. Effect of potassium level on the vegetative and reproductive responses.Seedlings were grown under the various levels of potassium (0.5, 10, 60 and 180ppm).The higher the level of potassium toward 60ppm, the plant grew up more vigorously and earlier much more flower buds differentiate. The potassium level higher than 60ppm restricted, on the other hand, the plant growth and retarded the flower bud differentiation, resulting in the less number of flowers.5. The optimum concentrations of each elements on the growth and the flower formation of tomato plants were 120_??_160ppm for N, 60_??_180ppm for P and 60 ppm for K.6. Relations between the flower formation and chemical constituents in tomato seedlings.The chemical constituents in the top of seedlings at 50 or 70 days stage grown at the various levels of nitrogen, phosphorus and potassium varied significantly and they showed high correlation with the total number of flowers up to the third inflorescence. The seedlings grown under the higher levels of nitrogen and phosphorus showed high levels of carbohydrates, especially total sugars, and nitrogen compounds, especially protein, and formed many flowers. Carbohydrates, especially sugars, and nitrogen, especially protein, seem essential for the balanced growth and reproductivity of tomato plant.
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Claims 13
Claim · model-written summary
Higher nitrogen concentration increased tomato seedling growth.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- nitrogene0
- Outcome
- plants growthe0
- Direction
- more vigorouse0
- Comparator
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The higher the concentration of nitrogen in the solution, the more vigorous the plants growth”
Claim · model-written summary
Higher nitrogen advanced flower bud differentiation and increased flower number while reducing leaves before the first inflorescence.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- nitrogene1
- Outcome
- flower buds differentiatione0
- Direction
- earliere0
- Comparator
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“the earlier the flower buds differentiation, resulting in the decrease in the number of leaves to the first inflorescence, and in the increased number of flower and the acceleration of their development”
e1“The higher the concentration of nitrogen in the solution”
Claim · model-written summary
Under higher light intensity, higher nitrogen increased growth and advanced and increased flower bud differentiation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- nitrogene0
- Outcome
- flower bud differentiation and developmente0
- Direction
- earliere0
- Qualifier
- higher light intensitye0
- Comparator
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The higher the level of nitrogen, the more vigorous the plant growth, the earlier and the more in number of flower bud differentiation and development under the higher light intensity”
Claim · model-written summary
At lower light intensity, 160 ppm nitrogen restricted growth and delayed flower bud differentiation with fewer flowers.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- nitrogen (160ppm)e0
- Outcome
- plant growthe0
- Direction
- restrictede0
- Qualifier
- lower light intensitye0
- Comparator
- lower light intensitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“Under the lower light intensity, on the other hand, the higher level of nitrogen (160ppm) restricted the plant growth and retarded the flower bud differentiation, resulting in the less number of flowers”
Claim · model-written summary
Higher phosphorus increased tomato seedling growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- phosphoruse0
- Outcome
- growthe0
- Direction
- more vigorouse0
- Comparator
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The higher the phosphorus level, the more vigorous the growth”
Claim · model-written summary
Higher phosphorus advanced and increased flower bud differentiation and development.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- phosphoruse0
- Outcome
- flower buds differentiatede0
- Direction
- earliere0
- Comparator
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The higher the phosphorus level, the more vigorous the growth, and earlier and much more flower buds differentiated with the decrease in the number of leaves to the first inflorescence, and their development was accelerated”
Claim · model-written summary
Increasing potassium toward 60 ppm increased growth and advanced flower bud differentiation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- potassium toward 60ppme0
- Outcome
- plant grew upe0
- Direction
- more vigorouslye0
- Comparator
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The higher the level of potassium toward 60ppm, the plant grew up more vigorously and earlier much more flower buds differentiate”
Claim · model-written summary
Potassium above 60 ppm restricted growth and delayed flower bud differentiation, leaving fewer flowers.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- potassium level higher than 60ppme0
- Outcome
- plant growthe0
- Direction
- restrictede0
- Comparator
- 60ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The potassium level higher than 60ppm restricted, on the other hand, the plant growth and retarded the flower bud differentiation, resulting in the less number of flowers”
Claim · model-written summary
The reported optimal nitrogen concentration for tomato growth and flowering was 120_??_160ppm.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ne0
- Outcome
- growth and the flower formatione0
- Value
- 120_??_160ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The optimum concentrations of each elements on the growth and the flower formation of tomato plants were 120_??_160ppm for N, 60_??_180ppm for P and 60 ppm for K”
Claim · model-written summary
The reported optimal phosphorus concentration for tomato growth and flowering was 60_??_180ppm.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Pe0
- Outcome
- growth and the flower formatione0
- Value
- 60_??_180ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The optimum concentrations of each elements on the growth and the flower formation of tomato plants were 120_??_160ppm for N, 60_??_180ppm for P and 60 ppm for K”
Claim · model-written summary
The reported optimal potassium concentration for tomato growth and flowering was 60 ppm.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ke0
- Outcome
- growth and the flower formatione0
- Value
- 60 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The optimum concentrations of each elements on the growth and the flower formation of tomato plants were 120_??_160ppm for N, 60_??_180ppm for P and 60 ppm for K”
Claim · model-written summary
Tomato seedling chemical constituents varied significantly across N, P and K levels and correlated with flower number.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- seedlingse0
- Treatment
- various levels of nitrogen, phosphorus and potassiume0
- Outcome
- total number of flowers up to the third inflorescencee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The chemical constituents in the top of seedlings at 50 or 70 days stage grown at the various levels of nitrogen, phosphorus and potassium varied significantly and they showed high correlation with the total number of flowers up to the third inflorescence”
Claim · model-written summary
Higher N and P levels raised carbohydrates and nitrogen compounds in tomato seedlings and were associated with many flowers.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- higher levels of nitrogen and phosphoruse0
- Compound
- carbohydratese0
- Outcome
- many flowerse0
- Direction
- manye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“tomato”
e0“The seedlings grown under the higher levels of nitrogen and phosphorus showed high levels of carbohydrates, especially total sugars, and nitrogen compounds, especially protein, and formed many flowers”
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See all 153 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.