Abstract
Abstract A wild soybean variety (Glycine soja (L.) Sieb and Zucc cv. Nakei-No. 1, indeterminate type) and 2 soybean cultivars (Glycine max (L.) Merr. cv. Tamahomare and Harosoy 63, determinate and indeterminate types, respectively) were grown in pots. The two soybean cultivars were also grown in the field without an application of combined-N. The effect of pod removal on dry matter production and dinitrogen-fixing activities were determined. 1. The total dry weight of the control soybean cultivars increased markedly due to the increase of the pod weight during the experimental period, whereas the increase of the total dry weight in the wild soybean variety was lower.2. Pod removal which resulted in the decrease of plant weight increment in the cultivar Tamahomare, did not affect plant weight increment in the wild soybean variety due to the large compensatory increase of leaf and stem weight.3. Dinitrogen-fixing activity of Tamahomare decreased markedly by pod removal, whereas in Harosoy, the decrease was slight but significant only for the first few days after pod removal. On the other hand, in the wild soybean variety no distinctive difference between control and depodded plants was observed.4. Pod removal decreased the increment of fixed-N in Tamahomare, and slightly decreased it in Harosoy. However, it had no effect in Nakei-No. 1 due to the increase in amounts of fixed-N in stems, petioles, and roots. Based on these results, it is concluded that the effect of pod removal on dinitrogen fixation varies with the cultivars and is largely dependent upon the growth habit of the plant.
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Claims 11
Claim · model-written summary
Control soybean cultivars gained markedly in total dry weight because pod weight increased.
- Taxon
- soybean
Glycine maxt0 - Organ / stage
- pode0
- Outcome
- total dry weighte0
- Direction
- increased markedlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total dry weight of the control soybean cultivars increased markedly due to the increase of the pod weight during the experimental period”
t0“soybean”
Claim · model-written summary
The wild soybean variety had a lower total dry weight increase.
- Taxon
- wild soybean
Glycine sojae0 - Outcome
- total dry weighte0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase of the total dry weight in the wild soybean variety was lower”
t0“soybean”
Claim · model-written summary
Pod removal decreased plant weight increment in Tamahomare.
- Taxon
- soybeanGlycine maxt0
- Material
- Tamahomaree0
- Treatment
- Pod removale0
- Outcome
- plant weight incremente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pod removal which resulted in the decrease of plant weight increment in the cultivar Tamahomare”
t0“soybean”
Claim · model-written summary
Pod removal did not affect plant weight increment in the wild soybean variety, owing to leaf and stem compensation.
- Taxon
- wild soybeanGlycine sojae0
- Treatment
- Pod removale1
- Outcome
- plant weight incremente0
- Direction
- did not affecte0
- Qualifier
- large compensatory increase of leaf and stem weighte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“did not affect plant weight increment in the wild soybean variety due to the large compensatory increase of leaf and stem weight”
e1“Pod removal which resulted in the decrease of plant weight increment in the cultivar Tamahomare”
t0“soybean”
Claim · model-written summary
Pod removal markedly decreased dinitrogen fixation in Tamahomare.
- Taxon
- soybeanGlycine maxt0
- Material
- Tamahomaree0
- Treatment
- pod removale0
- Outcome
- Dinitrogen-fixing activitye0
- Direction
- decreased markedlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dinitrogen-fixing activity of Tamahomare decreased markedly by pod removal”
t0“soybean”
Claim · model-written summary
Pod removal caused a slight, significant, short-lived decrease in Harosoy dinitrogen fixation.
- Taxon
- soybeanGlycine maxt0
- Material
- Harosoye0
- Treatment
- pod removale0
- Outcome
- decreasee0
- Direction
- decreasee0
- Qualifier
- only for the first few dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in Harosoy, the decrease was slight but significant only for the first few days after pod removal”
t0“soybean”
Claim · model-written summary
Control and depodded wild soybean plants did not differ distinctly in fixation activity.
- Taxon
- wild soybeanGlycine sojae0
- Treatment
- depodded plantse0
- Outcome
- no distinctive differencee0
- Direction
- no distinctive differencee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the wild soybean variety no distinctive difference between control and depodded plants was observed”
t0“soybean”
Claim · model-written summary
Pod removal decreased fixed-N increment in Tamahomare.
- Taxon
- soybeanGlycine maxt0
- Material
- Tamahomaree0
- Treatment
- Pod removale0
- Outcome
- increment of fixed-Ne0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pod removal decreased the increment of fixed-N in Tamahomare”
t0“soybean”
Claim · model-written summary
Pod removal slightly decreased fixed-N increment in Harosoy.
- Taxon
- soybeanGlycine maxt0
- Material
- Harosoye0
- Treatment
- Pod removale1
- Outcome
- ite0
- Direction
- slightly decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slightly decreased it in Harosoy”
e1“Pod removal which resulted in the decrease of plant weight increment in the cultivar Tamahomare”
t0“soybean”
Claim · model-written summary
Pod removal had no effect on fixed-N increment in Nakei-No. 1, with compensation in stems, petioles and roots.
- Taxon
- soybeanGlycine maxt0
- Material
- Nakei-No. 1e0
- Treatment
- Pod removale1
- Outcome
- fixed-Ne0
- Direction
- no effecte0
- Qualifier
- increase in amounts of fixed-N in stems, petioles, and rootse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it had no effect in Nakei-No. 1 due to the increase in amounts of fixed-N in stems, petioles, and roots”
e1“Pod removal which resulted in the decrease of plant weight increment in the cultivar Tamahomare”
t0“soybean”
Claim · model-written summary
The effect of pod removal on fixation varied among cultivars and depended on growth habit.
- Taxon
- soybeanGlycine maxt0
- Material
- cultivarse0
- Treatment
- pod removale0
- Outcome
- dinitrogen fixatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of pod removal on dinitrogen fixation varies with the cultivars and is largely dependent upon the growth habit of the plant”
t0“soybean”