Abstract
Summary The responses ofyield and quality traits ofsunflower (Helianthusannuus1.) to row orientation, row spacing, and plant density were studied in a rhree year field experiment (1996, 1997, 1998) conducted at a high-latitude site (51 °24' N) in central Germany. There were two row orientations (east-west; north-south), three row spacings (50, 75, and 100 cm), and three plant densities (four, eight, and 12 plants m- 2 ) . Sunflower planrs in east-west rows yielded on average 12% more oil than plants in north-south rows. The higher yield of planes in the east-west rows was mainly the resulr of a greater number ofachenes m- 2 ; both aboveground biomass and the harvest index tended to be higher in the east west rows than in the north-sourh rows. The maximumyield was produced in the east-west rows at four to eight plants m- 2 and 75 to 100 cm row spacing.
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Claims 4
Claim · model-written summary
Sunflower in east-west rows yielded 12% more oil than in north-south rows.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- east-west rowse1
- Outcome
- oile1
- Direction
- moree1
- Value
- 12%e1
- Comparator
- north-south rowse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“quality of sunflower as affected by row orientation”
e1“Sunflower planrs in east-west rows yielded on average 12% more oil than plants in north-south rows”
Claim · model-written summary
Higher yield of sunflower in east-west rows was mainly the result of a greater number of achenes per m2.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- yielde2
- Qualifier
- a greater number ofachenes m- 2e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“quality of sunflower as affected by row orientation”
e2“The higher yield of planes in the east-west rows was mainly the resulr of a greater number ofachenes m- 2”
Claim · model-written summary
Aboveground biomass and harvest index of sunflower tended to be higher in east-west rows than north-south rows.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- east-west rowse4
- Outcome
- aboveground biomass and the harvest indexe3
- Direction
- tended to be highere3
- Comparator
- north-sourh rowse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“quality of sunflower as affected by row orientation”
e4“Sunflower planrs in east-west rows”
e3“both aboveground biomass and the harvest index tended to be higher in the east west rows than in the north-sourh rows”
Claim · model-written summary
The maximum yield of sunflower was produced in east-west rows at four to eight plants m- 2 and 75 to 100 cm row spacing.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- four to eight plants m- 2 and 75 to 100 cm row spacinge4
- Outcome
- yielde4
- Direction
- maximume4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“quality of sunflower as affected by row orientation”
e4“The maximumyield was produced in the east-west rows at four to eight plants m- 2 and 75 to 100 cm row spacing”
The same questions in other papers
density · yield · Helianthus annuus (common sunflower)Positive and negative results
69 papers in the same direction as this paper · 15 in the opposite direction
- no effect
- positive
- positive
81 papers more in this group
See all 85 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.