Abstract
Photosynthetic activity is the decisive factor of yield increase in sunflower plants. This activity determines the application of agrotechnical measures such as row spacing and plant density. Experiments have proved that agrotechnical measures allow to control the growth, development and yield of sunflower hybrids and varieties. Row spacing and plants density affect the index of photosynthesis and the yield of sunflower agrophytocoenoses. Cultivation of sunflower at the row spacing of 15 cm in different variants of plants density increased the yield of the hybrid Zaporozhskiy 9 by 0.11-0.70 t/ha, of the hybrid Kharkovskiy 58 by 0.62-1.1 t/ha, of the variety Lider by 0.24-0.59 t/ha, of the variety Prometey by 0.20-0.63 t/ha as compared with the cultivation in agrophytocoenoces at the row spacing of 70 cm.
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Claims 5
Claim · model-written summary
Row spacing and density affected sunflower photosynthesis index.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- Row spacing and plants densitye0
- Outcome
- index of photosynthesise0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Row spacing and plants density affect the index of photosynthesis and the yield of sunflower agrophytocoenoses.”
Claim · model-written summary
At 15 cm versus 70 cm row spacing, Zaporozhskiy 9 yield increased 0.11-0.70 t/ha.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- Zaporozhskiy 9e0
- Treatment
- row spacing of 15 cme0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 0.11-0.70 t/hae0
- Comparator
- row spacing of 70 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivation of sunflower at the row spacing of 15 cm in different variants of plants density increased the yield of the hybrid Zaporozhskiy 9 by 0.11-0.70 t/ha, of the hybrid Kharkovskiy 58 by 0.62-1.1 t/ha, of the variety Lider by 0.24-0.59 t/ha, of the variety Prometey by 0.20-0.63 t/ha as compared with the cultivation in agrophytocoenoces at the row spacing of 70 cm.”
Claim · model-written summary
At 15 cm versus 70 cm row spacing, Kharkovskiy 58 yield increased 0.62-1.1 t/ha.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- Kharkovskiy 58e0
- Treatment
- row spacing of 15 cme0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 0.62-1.1 t/hae0
- Comparator
- row spacing of 70 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivation of sunflower at the row spacing of 15 cm in different variants of plants density increased the yield of the hybrid Zaporozhskiy 9 by 0.11-0.70 t/ha, of the hybrid Kharkovskiy 58 by 0.62-1.1 t/ha, of the variety Lider by 0.24-0.59 t/ha, of the variety Prometey by 0.20-0.63 t/ha as compared with the cultivation in agrophytocoenoces at the row spacing of 70 cm.”
Claim · model-written summary
At 15 cm versus 70 cm row spacing, Lider yield increased 0.24-0.59 t/ha.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- Lidere0
- Treatment
- row spacing of 15 cme0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 0.24-0.59 t/hae0
- Comparator
- row spacing of 70 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivation of sunflower at the row spacing of 15 cm in different variants of plants density increased the yield of the hybrid Zaporozhskiy 9 by 0.11-0.70 t/ha, of the hybrid Kharkovskiy 58 by 0.62-1.1 t/ha, of the variety Lider by 0.24-0.59 t/ha, of the variety Prometey by 0.20-0.63 t/ha as compared with the cultivation in agrophytocoenoces at the row spacing of 70 cm.”
Claim · model-written summary
At 15 cm versus 70 cm row spacing, Prometey yield increased 0.20-0.63 t/ha.
- Taxon
- sunflowerHelianthus annuuse0
- Material
- Prometeye0
- Treatment
- row spacing of 15 cme0
- Outcome
- yielde0
- Direction
- increasede0
- Value
- 0.20-0.63 t/hae0
- Comparator
- row spacing of 70 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivation of sunflower at the row spacing of 15 cm in different variants of plants density increased the yield of the hybrid Zaporozhskiy 9 by 0.11-0.70 t/ha, of the hybrid Kharkovskiy 58 by 0.62-1.1 t/ha, of the variety Lider by 0.24-0.59 t/ha, of the variety Prometey by 0.20-0.63 t/ha as compared with the cultivation in agrophytocoenoces at the row spacing of 70 cm.”
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
- negative
- negative
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.