Abstract
A field study was conducted in spring of 2011, at Kanipanka and Bakrajo, in the province of Sulaimani to evaluate the impact of planting dates and spacing on growth and yield of oilseed sunflower (Helianthus annuus L.), variety "Flame". The experiment comprised of three planting dates (March15th, 30th and April15th), and three-plant spacing (15, 20, and 25 cm). Seed yields obtained from earlier planting date and narrow plant spacing were significantly higher. The results also showed that the early planting date March15th has a significant positive effect on plant height, stem diameter, head size, and seed weight than the late planting date April15th as an average of both locations. The interaction between planting dates and plant spacing as an average of both locations, showed that March15th planting date and 25 cm plant spacing had significantly higher 1000 seed weight and seed weight per plant, while the highest seed yield gained by the interaction of March 15th and plant spacing 15cm. Percentage seed oil content collected as an average of both locations was significantly higher from plants with late planting date April 15th at 20 cm plant spacing. All the studied characters except seed oil percentage shows higher significant values at Kanipanka location due to the favorable agro- climatic condition compared to Bakrajo location.
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Claims 7
Claim · model-written summary
Earlier planting date and narrow spacing gave significantly higher seed yield.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- earlier planting date and narrow plant spacinge0
- Outcome
- Seed yieldse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yields obtained from earlier planting date and narrow plant spacing were significantly higher”
t0“Sunflower”
Claim · model-written summary
March15th planting significantly increased plant height and stem diameter relative to April15th.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- March15the0
- Outcome
- plant height, stem diametere0
- Direction
- positive effecte0
- Comparator
- April15the0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the early planting date March15th has a significant positive effect on plant height, stem diameter, head size, and seed weight than the late planting date April15th”
t0“Sunflower”
Claim · model-written summary
March15th planting significantly increased head size and seed weight relative to April15th.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- March15the0
- Outcome
- head size, and seed weighte0
- Direction
- positive effecte0
- Comparator
- April15the0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the early planting date March15th has a significant positive effect on plant height, stem diameter, head size, and seed weight than the late planting date April15th”
t0“Sunflower”
Claim · model-written summary
March15th planting at 25 cm spacing gave significantly higher 1000 seed weight and seed weight per plant.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- March15th planting date and 25 cm plant spacinge0
- Outcome
- 1000 seed weight and seed weight per plante0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“March15th planting date and 25 cm plant spacing had significantly higher 1000 seed weight and seed weight per plant”
t0“Sunflower”
Claim · model-written summary
March 15th planting at 15cm spacing produced the highest seed yield.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- March 15th and plant spacing 15cme0
- Outcome
- seed yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest seed yield gained by the interaction of March 15th and plant spacing 15cm”
t0“Sunflower”
Claim · model-written summary
April 15th planting at 20 cm spacing gave significantly higher seed oil content.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- late planting date April 15th at 20 cm plant spacinge0
- Outcome
- Percentage seed oil contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage seed oil content collected as an average of both locations was significantly higher from plants with late planting date April 15th at 20 cm plant spacing”
t0“Sunflower”
Claim · model-written summary
Studied traits except seed oil percentage were significantly higher at Kanipanka than Bakrajo.
- Taxon
- SunflowerHelianthus annuust0
- Outcome
- All the studied characters except seed oil percentagee0
- Direction
- highere0
- Comparator
- Bakrajoe0
- Setting
- Kanipankae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All the studied characters except seed oil percentage shows higher significant values at Kanipanka location due to the favorable agro- climatic condition compared to Bakrajo location”
t0“Sunflower”
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