Abstract
Four sugarcane varieties, B. 37161, H. 328560, M. 336, and P.R. 980, grown in sand cultures in the greenhouse were allowed to develop deficiency symptoms caused by lack of major and minor elements. The elements studied were nitrogen, phosphorus, potassium, calcium, magnesium, iron, manganese, sulfur, and boron. The most important results were as follows: 1. There were differential responses to the various deficiency treatments by the individual varieties as to total green weight and millable cane stalks. 2. The absence of nitrogen and phosphorus had the greatest influence in retarding growth and yields in plants at 6 1/2 months of age for the average of all varieties. 3. The complete treatment produced the highest yields of total green weight and also of millable cane for the average of the four varieties. The minus-nitrogen treatment failed to produce millable cane for B. 37161 and M. 336. 4. The minus-potassium and minus-calcium treatments were about tied for third place in yields of total green weight and millable cane. 5. The absences of magnesium, sulfur, iron, manganese, and boron were about equal in effects on yields for the mean of the four varieties. 6. The ranking in descending order of Brix was H. 328560 > M. 336 > P.R. 980 > B. 37161, and for polarization M. 336 > H. 328560 > P.R. 980 > B. 37161. 7. The highest Brix and polarization values were obtained from millable cane grown under the minus-nitrogen treatment and the lowest under the minus-potassium treatment. 8. The growth response in height followed rather closely the production of green millable stalks, insofar as the influence of the various deficiencies was concerned. 9. The most tillers per sugarcane stool were produced under the complete treatment, with the exception of P.R. 980. Poorest tillering was associated with the minus-phosphorus treatment. 10. The top-to-stalk ratio under the complete treatment was lowest for H. 328560, with P.R. 980 a close second, B. 37161 a poor third, and M. 336 last. 11. The weight of sugarcane roots was in general highest for the complete treatment and lowest in the minus-nitrogen, minus-phosphorus, and minusiron treatments. The weight of roots for the complete treatment of the 4 varieties descended thus: M. 336 > B. 37161 > P.R. 980 > H. 328560.
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Claims 18
Claim · model-written summary
Varieties differed in total green weight and millable stalk responses to nutrient deficiencies.
- Taxon
- Sugarcanet0
- Treatment
- deficiency treatmentse0
- Outcome
- total green weight and millable cane stalkse0
- Direction
- differential responsese0
Not reportedComparator
Verbatim
e0“There were differential responses to the various deficiency treatments by the individual varieties as to total green weight and millable cane stalks.”
t0“Sugarcane”
Claim · model-written summary
Nitrogen and phosphorus absence most strongly retarded growth and yield at 6.5 months.
- Taxon
- Sugarcanet0
- Treatment
- absence of nitrogen and phosphoruse0
- Outcome
- growth and yieldse0
- Direction
- retardinge0
- Qualifier
- 6 1/2 months of agee0
Not reportedComparator
Verbatim
e0“The absence of nitrogen and phosphorus had the greatest influence in retarding growth and yields in plants at 6 1/2 months of age for the average of all varieties.”
t0“Sugarcane”
Claim · model-written summary
Complete nutrient treatment produced highest total green weight and millable cane yields.
- Taxon
- Sugarcanet0
- Treatment
- complete treatmente0
- Outcome
- yields of total green weight and also of millable canee0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“The complete treatment produced the highest yields of total green weight and also of millable cane for the average of the four varieties.”
t0“Sugarcane”
Claim · model-written summary
Without nitrogen, B. 37161 produced no millable cane.
- Taxon
- Sugarcanet0
- Material
- B. 37161e0
- Treatment
- minus-nitrogen treatmente0
- Outcome
- millable canee0
- Direction
- failed to producee0
Not reportedComparator
Verbatim
e0“The minus-nitrogen treatment failed to produce millable cane for B. 37161 and M. 336.”
t0“Sugarcane”
Claim · model-written summary
Without nitrogen, M. 336 produced no millable cane.
- Taxon
- Sugarcanet0
- Material
- M. 336e0
- Treatment
- minus-nitrogen treatmente0
- Outcome
- millable canee0
- Direction
- failed to producee0
Not reportedComparator
Verbatim
e0“The minus-nitrogen treatment failed to produce millable cane for B. 37161 and M. 336.”
t0“Sugarcane”
Claim · model-written summary
Minus potassium and minus calcium tied near third for green weight and millable cane yield.
- Taxon
- Sugarcanet0
- Treatment
- minus-potassium and minus-calcium treatmentse0
- Outcome
- yields of total green weight and millable canee0
- Direction
- about tied for third placee0
Not reportedComparator
Verbatim
e0“The minus-potassium and minus-calcium treatments were about tied for third place in yields of total green weight and millable cane.”
t0“Sugarcane”
Claim · model-written summary
Deficiencies of magnesium, sulfur, iron, manganese and boron had approximately equal mean yield effects.
- Taxon
- Sugarcanet0
- Treatment
- absences of magnesium, sulfur, iron, manganese, and borone0
- Outcome
- yieldse0
- Direction
- about equale0
Not reportedComparator
Verbatim
e0“The absences of magnesium, sulfur, iron, manganese, and boron were about equal in effects on yields for the mean of the four varieties.”
t0“Sugarcane”
Claim · model-written summary
Brix ranked H. 328560 above M. 336 above P.R. 980 above B. 37161.
Verbatim
e0“The ranking in descending order of Brix was H. 328560 > M. 336 > P.R. 980 > B. 37161”
t0“Sugarcane”
Claim · model-written summary
Polarization ranked M. 336 above H. 328560 above P.R. 980 above B. 37161.
Not reportedDirection
Verbatim
e0“for polarization M. 336 > H. 328560 > P.R. 980 > B. 37161.”
t0“Sugarcane”
Claim · model-written summary
Minus nitrogen produced the highest Brix and polarization.
- Taxon
- Sugarcanet0
- Treatment
- minus-nitrogen treatmente0
- Outcome
- Brix and polarization valuese0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“The highest Brix and polarization values were obtained from millable cane grown under the minus-nitrogen treatment”
t0“Sugarcane”
Claim · model-written summary
Minus potassium produced the lowest Brix and polarization.
Not reportedComparator
Verbatim
e0“The highest Brix and polarization values were obtained from millable cane grown under the minus-nitrogen treatment and the lowest under the minus-potassium treatment.”
t0“Sugarcane”
Claim · model-written summary
Height growth followed green millable stalk production across deficiencies.
Not reportedDirection
Verbatim
e0“The growth response in height followed rather closely the production of green millable stalks, insofar as the influence of the various deficiencies was concerned.”
t0“Sugarcane”
Claim · model-written summary
Complete nutrient treatment produced the most tillers except in P.R. 980.
- Taxon
- sugarcanee0
- Treatment
- complete treatmente0
- Outcome
- tillers per sugarcane stoole0
- Direction
- moste0
- Qualifier
- exception of P.R. 980e0
Not reportedComparator
Verbatim
e0“The most tillers per sugarcane stool were produced under the complete treatment, with the exception of P.R. 980.”
Claim · model-written summary
Minus phosphorus was associated with the poorest tillering.
Verbatim
e0“Poorest tillering was associated with the minus-phosphorus treatment.”
t0“Sugarcane”
Claim · model-written summary
For complete nutrient treatment, H. 328560 had the lowest top to stalk ratio.
- Taxon
- Sugarcanet0
- Material
- H. 328560e0
- Treatment
- complete treatmente0
- Outcome
- top-to-stalk ratioe0
- Direction
- loweste0
Not reportedComparator
Verbatim
e0“The top-to-stalk ratio under the complete treatment was lowest for H. 328560, with P.R. 980 a close second, B. 37161 a poor third, and M. 336 last.”
t0“Sugarcane”
Claim · model-written summary
Root weight was generally highest under complete nutrients.
Not reportedComparator
Verbatim
e0“The weight of sugarcane roots was in general highest for the complete treatment”
Claim · model-written summary
Root weight was lowest with nitrogen, phosphorus or iron absence.
- Taxon
- Sugarcanet0
- Treatment
- minus-nitrogen, minus-phosphorus, and minusiron treatmentse0
- Outcome
- weight of sugarcane rootse0
- Direction
- loweste0
Not reportedComparator
Verbatim
e0“The weight of sugarcane roots was in general highest for the complete treatment and lowest in the minus-nitrogen, minus-phosphorus, and minusiron treatments.”
t0“Sugarcane”
Claim · model-written summary
Under complete nutrients, root weight ranked M. 336, B. 37161, P.R. 980 and H. 328560.
Verbatim
e0“The weight of roots for the complete treatment of the 4 varieties descended thus: M. 336 > B. 37161 > P.R. 980 > H. 328560.”
t0“Sugarcane”
The same questions in other papers
nitrogen · yield · Saccharum officinarum (sugarcane)Results differ
117 papers in the same direction as this paper · 15 in the opposite direction · 4 reporting no difference from an alternative
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- negative
- negative
133 papers more in this group
See all 137 papers →phosphorus · yield · Saccharum officinarum (sugarcane)Positive and negative results
54 papers in the same direction as this paper · 2 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- no effect
- positive
53 papers more in this group
See all 57 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.