Abstract
A vigorous new semidwarf line of oats ( Avena saliva L .), designated as OT 207, was selected from OT 184 following irradiation of seed with 1,150 rads of fast neutrons. Because of the potential of a semidwarf oat, the genetics, cytology, and productivity of this new semidwarf were studied. The stature of OT 207 is controlled by a single dominant gene for which the symbol Dw ‐6 has been assigned. Cytological observations showed that OT 207 contains 42 chromosomes and that meiosis and mitosis are normal. OT 207 is 34% shorter than its mother‐line. The height reduction is due to shorter internodes, particularly the peduncle. There is no change in the number of internodes. Lodging resistance and shattering resistance are superior to that of the check cultivars ‘Rodney’ and ‘Hudson.’ Yield of this semidwarf relative to the check cultivars has been variable. Usually differences in yield were insignificant or OT 207 yielded significantly less. In 19/75, OT 207 yielded significantly more at a 15 cm than at a 30 cm row spacing, while the yield of Harmon’ was not significantly different at the two spacings. Genotype by row spacing interaction was significant. In 1976, both varieties gave significantly higher yields at a 114 kg/ha seeding rate than at a 57 kg/ha, while neither genotype, row spacing (15 cm vs. 30 cm) or interactions were significant.
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Claims 10
Claim · model-written summary
A single dominant Dw-6 gene controls OT 207 stature.
- Taxon
- oats
Avena sativae1 - Material
- OT 207e0
- Gene
- Dw ‐6e0
- Outcome
- staturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stature of OT 207 is controlled by a single dominant gene for which the symbol Dw ‐6 has been assigned”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
OT 207 has 42 chromosomes and normal meiosis and mitosis.
- Taxon
- oatsAvena sativae1
- Material
- OT 207e0
- Outcome
- chromosomese0
- Value
- 42 chromosomese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OT 207 contains 42 chromosomes and that meiosis and mitosis are normal”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
OT 207 is 34% shorter than its mother line.
- Taxon
- oatsAvena sativae1
- Material
- OT 207e0
- Outcome
- OT 207e0
- Direction
- shortere0
- Value
- 34%e0
- Comparator
- mother‐linee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OT 207 is 34% shorter than its mother‐line”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
The height reduction reflects shorter internodes, especially the peduncle.
- Taxon
- oatsAvena sativae1
- Outcome
- internodese0
- Direction
- shortere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The height reduction is due to shorter internodes, particularly the peduncle”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
Internode number did not change.
- Taxon
- oatsAvena sativae1
- Outcome
- number of internodese0
- Direction
- no changee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There is no change in the number of internodes”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
OT 207 has superior lodging and shattering resistance relative to Rodney and Hudson.
- Taxon
- oatsAvena sativae1
- Outcome
- Lodging resistance and shattering resistancee0
- Direction
- superiore0
- Comparator
- ‘Rodney’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lodging resistance and shattering resistance are superior to that of the check cultivars ‘Rodney’ and ‘Hudson.’”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
OT 207 yield versus check cultivars varied and was usually insignificant or lower.
- Taxon
- oatsAvena sativae1
- Material
- OT 207e0
- Outcome
- yielde0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Usually differences in yield were insignificant or OT 207 yielded significantly less”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
In 1975 OT 207 yielded more at 15 cm than 30 cm row spacing.
- Taxon
- oatsAvena sativae1
- Material
- OT 207e0
- Treatment
- 15 cme0
- Outcome
- yieldede0
- Direction
- moree0
- Comparator
- 30 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OT 207 yielded significantly more at a 15 cm than at a 30 cm row spacing”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
Harmon yield did not significantly differ between row spacings.
- Taxon
- oatsAvena sativae1
- Material
- Harmon’e0
- Treatment
- two spacingse0
- Outcome
- yielde0
- Direction
- not significantly differente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yield of Harmon’ was not significantly different at the two spacings”
e1“oats ( Avena saliva L .)”
Claim · model-written summary
In 1976 both varieties yielded more at 114 kg/ha than 57 kg/ha seeding rate.
- Taxon
- oatsAvena sativae1
- Treatment
- 114 kg/ha seeding ratee0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- 57 kg/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both varieties gave significantly higher yields at a 114 kg/ha seeding rate than at a 57 kg/ha”
e1“oats ( Avena saliva L .)”
The same questions in other papers
density · yield · Avena sativa (oats)Positive and negative results
28 papers in the same direction as this paper · 24 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
50 papers more in this group
See all 54 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.