Abstract
With the plants of runner type (Chiba No. 45 and No. 74), various nutrient treatments were held on acid-washed sand of the fruiting zone throughout the experiment. Flactional analyses of calcium and organic acid were carried out in the pods of each treatment, namely the samples were extracted by 66 % alcohol, 2 % acetic acid and 1 N hydrochloric acid in the case of calcium, and by distilled water and 1 N hydrochloric acid in the case of organic acid. And constituent organic acids were determinated by paper chromatographic methods. 1. Production of unfilled fruit remarkably increased in the plants which received distilled water, minus calcium, plus nitrogen, plus phosphorus, plus potassium and p1us magnesium. In both cases of shell and seed, content of 1 N HCl soluble calcium made a sharp distinction between the above treatments and other nutrient treatments such as complete, minus nitrogen, minus phosphorus, minus potassium, minus magnesium and plus calcium during the peanut development. But in young fruit, the content of calcium by fractional analysis was almost equal irrespective of the treatments of complete, distilled water and minus calcium. 2. The content of free acid (H2O soluble acid) lessened considerably during fruit development in all treatments holding calcium element. This decrease in acid content was due chiefly to the decrease in contents of free citric and malonic acid. However, the content of free acid in all treatments with-holding calcium such as plus potassium, remained nearly unchanged in shell, and increased in abnormal seed during the season. This increase in acid content of the seed was mainly caused by the increase in content of malonic acid. The content of combined acid (HCl soluble acid) increassed parallel with the content of HCl soluble calcium in shell. And this increased amount was due chiefly to the increase in the content of oxalic acid, so that, it can be conjectured that calcium absorbed from fruiting zone combines with oxalic acid in shell during the maturity. In fact, there were not observed the existence of oxalic acid and the increasing amount of HCl soluble calcium in any treatment of calcium deficiency. But the similar relation was not clear among seeds in all treatments.
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Claims 13
Claim · model-written summary
Six nutrient treatments increased unfilled fruit production.
- Taxon
- Peanut
Arachis hypogaeat0 - Treatment
- distilled water, minus calcium, plus nitrogen, plus phosphorus, plus potassium and p1us magnesiume0
- Outcome
- Production of unfilled fruite0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Production of unfilled fruit remarkably increased in the plants which received distilled water, minus calcium, plus nitrogen, plus phosphorus, plus potassium and p1us magnesium.”
t0“Peanut”
Claim · model-written summary
Shell and seed HCl-soluble calcium distinguished treatment groups during development.
- Taxon
- peanutArachis hypogaeae0
- Organ / stage
- shell and seede0
- Outcome
- content of 1 N HCl soluble calciume0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both cases of shell and seed, content of 1 N HCl soluble calcium made a sharp distinction between the above treatments and other nutrient treatments such as complete, minus nitrogen, minus phosphorus, minus potassium, minus magnesium and plus calcium during the peanut development.”
Claim · model-written summary
Young-fruit calcium content was nearly equal among complete, distilled-water and calcium-deficient treatments.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- young fruite0
- Treatment
- complete, distilled water and minus calciume0
- Outcome
- content of calciume0
- Direction
- almost equale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in young fruit, the content of calcium by fractional analysis was almost equal irrespective of the treatments of complete, distilled water and minus calcium.”
t0“Peanut”
Claim · model-written summary
Free acid content declined substantially during fruit development in calcium-containing treatments.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- fruite0
- Treatment
- treatments holding calcium elemente0
- Outcome
- content of free acid (H2O soluble acid)e0
- Direction
- lessened considerablye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of free acid (H2O soluble acid) lessened considerably during fruit development in all treatments holding calcium element.”
t0“Peanut”
Claim · model-written summary
Free citric and malonic acid content declined and accounted for the free-acid reduction.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- decrease in acid contente0
- Qualifier
- decrease in contents of free citric and malonic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This decrease in acid content was due chiefly to the decrease in contents of free citric and malonic acid.”
t0“Peanut”
Claim · model-written summary
Shell free-acid content remained nearly unchanged without calcium.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- shelle0
- Treatment
- plus potassiume0
- Outcome
- content of free acide0
- Direction
- remained nearly unchangede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of free acid in all treatments with-holding calcium such as plus potassium, remained nearly unchanged in shell”
t0“Peanut”
Claim · model-written summary
Abnormal-seed free-acid content increased during the season without calcium.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- abnormal seede0
- Outcome
- content of free acide1
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and increased in abnormal seed during the season.”
t0“Peanut”
e1“The content of free acid (H2O soluble acid) lessened considerably during fruit development in all treatments holding calcium element.”
Claim · model-written summary
Increased malonic acid content mainly caused the abnormal-seed acid increase.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- increase in acid content of the seede0
- Qualifier
- increase in content of malonic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This increase in acid content of the seed was mainly caused by the increase in content of malonic acid.”
t0“Peanut”
Claim · model-written summary
Combined acid content increased in parallel with HCl-soluble calcium in shells.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- shelle0
- Compound
- HCl soluble calciume0
- Outcome
- content of combined acid (HCl soluble acid)e0
- Direction
- increassede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of combined acid (HCl soluble acid) increassed parallel with the content of HCl soluble calcium in shell.”
t0“Peanut”
Claim · model-written summary
Oxalic acid content accounted for the increase in combined acid.
- Taxon
- PeanutArachis hypogaeat0
- Outcome
- increased amounte0
- Qualifier
- increase in the content of oxalic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this increased amount was due chiefly to the increase in the content of oxalic acid”
t0“Peanut”
Claim · model-written summary
Calcium was inferred to combine with oxalic acid in maturing shells.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- shelle0
- Compound
- calciume0
- Outcome
- combines with oxalic acid in shelle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it can be conjectured that calcium absorbed from fruiting zone combines with oxalic acid in shell during the maturity.”
t0“Peanut”
Claim · model-written summary
Oxalic acid and increasing HCl-soluble calcium were absent under calcium deficiency.
- Taxon
- PeanutArachis hypogaeat0
- Treatment
- calcium deficiencye0
- Outcome
- existence of oxalic acid and the increasing amount of HCl soluble calciume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were not observed the existence of oxalic acid and the increasing amount of HCl soluble calcium in any treatment of calcium deficiency.”
t0“Peanut”
Claim · model-written summary
The same calcium-acid relation was unclear in seeds.
- Taxon
- PeanutArachis hypogaeat0
- Organ / stage
- seedse0
- Outcome
- similar relatione0
- Qualifier
- not cleare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the similar relation was not clear among seeds in all treatments.”
t0“Peanut”
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