Abstract
Abstract Soybean [Glycine max (L.) Merrill] seedlings are dependent on the iron supply in the seed for early growth. Any factor that limits this supply of Fe could cause poor growth and would require management practices to eliminate these factors to insure good seedlings. Phosphate and Fe‐stress response were the variables used to test the availability of seed iron in the seedlings. Phosphate competes with the plant for Fe, and Fe‐stress response is an adaptive mechanism that accentuates the transport of iron. ‘PI‐54619‐5‐1’ (PI) soybean has an inefficient Fe‐stress response mechanism and ‘Hawkeye’ (HA) has a very efficient Fe‐stress response mechanism. Our objective was to determine how these factors affected the utlization of Fe from the soybean seeds as compared to Fe supplied externally. Soybean seeds of these two lines were produced by plants treated from anthesis to seed maturity with 59 Fe supplied as ferric ethylenediaminedi(o‐hydroxyphenylacetate). Seedling plants, from labeled 59 Fe seeds, were subsequently studied to determine the effect of Fe‐stress response and to determine the effect of varied nutrient P on the translocation and utilization of 59 Fe from the cotyledons of Fe‐inefficient and Fe‐efficient soybeans. Cotyledonary Fe, of both lines in the seedling stage, appeared available for translocation and utilization and was not affected by Fe stress or varied nutrient P. It was concluded that Fe should not be a limiting factor in establishing a good stand of soybeans in the field because of the readily available source of Fe from the seed.
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Claims 4
Claim · model-written summary
Cotyledonary iron was available for translocation and utilization in seedlings of both lines.
- Taxon
- Soybean
Glycine maxe1 - Organ / stage
- seedling stagee0
- Compound
- Fee0
- Outcome
- translocation and utilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotyledonary Fe, of both lines in the seedling stage, appeared available for translocation and utilization”
e1“Soybean [Glycine max (L.) Merrill] seedlings”
Claim · model-written summary
Fe stress did not affect cotyledonary Fe translocation and utilization.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- Fe stresse0
- Compound
- Fee0
- Outcome
- translocation and utilizatione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotyledonary Fe, of both lines in the seedling stage, appeared available for translocation and utilization and was not affected by Fe stress or varied nutrient P.”
e1“Soybean [Glycine max (L.) Merrill] seedlings”
Claim · model-written summary
Varied nutrient P did not affect cotyledonary Fe translocation and utilization.
- Taxon
- SoybeanGlycine maxe1
- Treatment
- varied nutrient Pe0
- Compound
- Fee0
- Outcome
- translocation and utilizatione0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotyledonary Fe, of both lines in the seedling stage, appeared available for translocation and utilization and was not affected by Fe stress or varied nutrient P.”
e1“Soybean [Glycine max (L.) Merrill] seedlings”
Claim · model-written summary
The authors concluded seed Fe should not limit soybean stand establishment in fields.
- Taxon
- soybeansGlycine maxe0
- Compound
- Fee0
- Outcome
- establishing a good stand of soybeans in the fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fe should not be a limiting factor in establishing a good stand of soybeans in the field because of the readily available source of Fe from the seed”
The same questions in other papers
iron atom · nutrient: content · Glycine max (soybean)Positive and negative results
12 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
34 papers more in this group
See all 38 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.