Abstract
2 Abstract: Increasing concentration of HCO ions in the nutrient medium progressively decreased the growth 3 - of maize plants as measured by decrease in shoots and root weight, these effects becoming more distinct with time, particularly at the two higher levels of bicarbonate supply (10 and 20 mM). Various parameter of growth including plant height, root and shoot measurements, nutrient composition of shoots and roots and nutrient uptake were all affected in this manner as was also the appearance of iron chlorosis. In the cation-anion balance data of the roots and shoots, mineral cation totals exceeded anion totals for each HCO treatment and in the 3 - accumulated on the root surface. Therefore, the specific effect on roots and shoots growth as compared with control may be due to inhibited respiration caused by high levels of bicarbonate treatments. understood. sheet, placed over the containers. To prevent the possible The purpose of this experiment was to investigate the occurrence of any anoxia compressed air was bubbled effects of increasing concentration of bicarbonate in the vigorously into the solution. For the first 2 days after nutrient medium on the growth of maize as measured at a transfer a half strength nutrient solution was used single harvest and to determine the uptake and (to prevent the plants suffering from osmotic stress). distribution of the main mineral nutrients. In this work This was then replaced by a full strength solution for a
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Increasing bicarbonate concentration decreased maize shoot and root weight.
- Treatment
- Increasing concentration of HCO ions in the nutrient mediume1
- Outcome
- shoots and root weighte2
- Direction
- decreasee2
- Comparator
- controle5
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Plants”
e1“Increasing concentration of HCO ions in the nutrient medium progressively decreased the growth”
e2“as measured by decrease in shoots and root weight”
e5“compared with control”
Claim · model-written summary
Increasing bicarbonate concentration caused iron chlorosis in maize.
- Treatment
- Increasing concentration of HCO ions in the nutrient mediume1
- Outcome
- appearance of iron chlorosise3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Plants”
e1“Increasing concentration of HCO ions in the nutrient medium progressively decreased the growth”
e3“as was also the appearance of iron chlorosis”
Claim · model-written summary
Increasing bicarbonate concentration affected nutrient composition of shoots and roots and nutrient uptake in maize.
- Treatment
- Increasing concentration of HCO ions in the nutrient mediume1
- Outcome
- nutrient composition of shoots and roots and nutrient uptakee3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Plants”
e1“Increasing concentration of HCO ions in the nutrient medium progressively decreased the growth”
e3“nutrient composition of shoots and roots and nutrient uptake were all affected in this manner”
Claim · model-written summary
Mineral cation totals exceeded anion totals in maize roots and shoots under each bicarbonate treatment.
- Organ / stage
- roots and shootse4
- Outcome
- mineral cation totalse4
- Direction
- exceedede4
- Comparator
- anion totalse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Plants”
e4“In the cation-anion balance data of the roots and shoots, mineral cation totals exceeded anion totals for each HCO treatment”
Claim · model-written summary
The specific effect on maize root and shoot growth may be due to inhibited respiration caused by high bicarbonate levels.
- Treatment
- high levels of bicarbonatee5
- Outcome
- roots and shoots growthe5
- Qualifier
- inhibited respiratione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize Plants”
e5“the specific effect on roots and shoots growth as compared with control may be due to inhibited respiration caused by high levels of bicarbonate treatments”
The same questions in other papers
in vitro · physiology: pigments · Zea mays (maize)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →in vitro · growth · Zea mays (maize)Positive and negative results
26 papers in the same direction as this paper · 60 in the opposite direction
- positive
- positive
- positive
83 papers more in this group
See all 87 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.