Abstract
Seed protein content is important for both feed and food utilisation of soybean. In soybeans grown in Central Europe, considerable variation in protein content was due to seasonal influences, as demonstrated in different experiments from a breeding programme. In soybean genotypes of early maturity groups, average to high protein content (range 399—476 g kg−1) was found in years with high air temperature and moderate rates of rainfall during the seed-filling period, whereas seed protein content was drastically reduced (range 265–347 g kg−1) in seasons of insufficient nitrogen fixation or higher amounts of precipitation during seed filling. In a set of 60 genotypes, protein content was increased both by late nitrogen fertilisation before the onset of seed filling and by inoculation of seed with nitrogen-fixing rhizobia. Despite the high degree of environmental modification, genetic variation of seed protein content was considerable, and genotype × environment interaction was of low magnitude. Therefore selection of early maturing soybean genotypes with improved seed protein content appears to be feasible and is only limited by the moderately negative correlation between protein content and seed yield. © 2000 Society of Chemical Industry
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 8
Claim · model-written summary
High temperatures and moderate rainfall during seed filling coincided with 399—476 g kg−1 seed protein.
- Taxon
- soybean
Glycine maxe0 - Material
- genotypes of early maturity groupse0
- Outcome
- protein contente0
- Direction
- highe0
- Value
- 399—476 g kg−1e0
- Qualifier
- high air temperature and moderate rates of rainfall during the seed-filling periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In soybean genotypes of early maturity groups, average to high protein content (range 399—476 g kg−1) was found in years with high air temperature and moderate rates of rainfall during the seed-filling period”
Claim · model-written summary
Seed protein content was reduced to 265–347 g kg−1 in seasons with insufficient nitrogen fixation or more precipitation during seed filling.
- Taxon
- soybeanGlycine maxt0
- Organ / stage
- seed fillinge0
- Outcome
- seed protein contente0
- Direction
- drastically reducede0
- Value
- 265–347 g kg−1e0
- Qualifier
- insufficient nitrogen fixation or higher amounts of precipitation during seed fillinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed protein content was drastically reduced (range 265–347 g kg−1) in seasons of insufficient nitrogen fixation or higher amounts of precipitation during seed filling”
t0“soybean”
Claim · model-written summary
Late nitrogen fertilisation increased protein content in a set of 60 soybean genotypes.
- Taxon
- soybeanGlycine maxt0
- Material
- 60 genotypese0
- Treatment
- late nitrogen fertilisation before the onset of seed fillinge0
- Outcome
- protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a set of 60 genotypes, protein content was increased both by late nitrogen fertilisation before the onset of seed filling and by inoculation of seed with nitrogen-fixing rhizobia”
t0“soybean”
Claim · model-written summary
Seed inoculation with nitrogen-fixing rhizobia increased protein content in a set of 60 soybean genotypes.
- Taxon
- soybeanGlycine maxt0
- Treatment
- inoculation of seed with nitrogen-fixing rhizobiae0
- Interactor
- nitrogen-fixing rhizobiae0symbiont
- Outcome
- protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a set of 60 genotypes, protein content was increased both by late nitrogen fertilisation before the onset of seed filling and by inoculation of seed with nitrogen-fixing rhizobia”
t0“soybean”
Claim · model-written summary
Genetic variation in seed protein content was considerable despite environmental effects.
- Taxon
- soybeanGlycine maxt0
- Outcome
- genetic variation of seed protein contente0
- Qualifier
- considerablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite the high degree of environmental modification, genetic variation of seed protein content was considerable”
t0“soybean”
Claim · model-written summary
Genotype by environment interaction for seed protein content was low.
- Taxon
- soybeanGlycine maxt0
- Outcome
- genotype × environment interactione0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotype × environment interaction was of low magnitude”
t0“soybean”
Claim · model-written summary
Seed protein content was moderately negatively correlated with seed yield.
- Taxon
- soybeanGlycine maxt0
- Outcome
- protein contente0
- Direction
- negativee0
- Comparator
- seed yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moderately negative correlation between protein content and seed yield”
t0“soybean”
Claim · model-written summary
The authors consider selection of early maturing soybean genotypes for improved seed protein feasible.
- Taxon
- soybeanGlycine maxt0
- Outcome
- selection of early maturing soybean genotypes with improved seed protein contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selection of early maturing soybean genotypes with improved seed protein content appears to be feasible”
t0“soybean”
The same questions in other papers
inoculation · quality: protein · Glycine max (soybean)Results differ
46 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- no effect
- no effect
49 papers more in this group
See all 53 papers →nitrogen · quality: protein · Glycine max (soybean)Results differ
46 papers in the same direction as this paper · 18 in the opposite direction
- positive
- positive
- positive
61 papers more in this group
See all 65 papers →fertilization · quality: protein · Glycine max (soybean)Positive and negative results
115 papers in the same direction as this paper · 17 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
130 papers more in this group
See all 134 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.