Abstract
A study was carried out to determine the response of open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer. Spring and autumn grown plots were sprayed with boron (0, 50, 100, 150, 200, and 250 mg L −1 ) in a randomized complete block design. The results showed that boron and green Leaf area/LAI measured at the end of seed filling were linearly related in the spring crop. In the autumn crop, the relationship between boron and dry matter yield was linear, and applications above 100 mg L −1 significantly increased dry matter compared to the control. For the autumn crop, 100, 200, and 250 mg L −1 significantly increased seed number compared to the control, but only the 150 mg L −1 treatment increased seed weight significantly. Boron tended to decrease the empty seed percentage, and for the spring crop, this was incremental and linear with applications above 150 mg L −1 leading to significant reductions in empty seed percentage. Seed yield increased linearly in the autumn crop in response to boron, and 200 and 250 mg L −1 applications gave significant increases in yield compared to the control.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Boron above 100 mg/L significantly increased dry matter of the autumn sunflower crop compared with the control.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- boron fertilizere0
- Outcome
- dry mattere1
- Direction
- increasede1
- Comparator
- controle1
- Setting
- autumn crope1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e1“In the autumn crop, the relationship between boron and dry matter yield was linear, and applications above 100 mg L −1 significantly increased dry matter compared to the control”
Claim · model-written summary
100, 200 and 250 mg/L boron significantly increased seed number of the autumn crop compared with the control.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- boron fertilizere0
- Outcome
- seed numbere2
- Direction
- increasede2
- Comparator
- controle2
- Setting
- autumn crope2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e2“For the autumn crop, 100, 200, and 250 mg L −1 significantly increased seed number compared to the control”
Claim · model-written summary
Only 150 mg/L boron significantly increased seed weight.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- 150 mg L −1e3
- Outcome
- seed weighte3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e3“but only the 150 mg L −1 treatment increased seed weight significantly”
Claim · model-written summary
Boron tended to decrease the empty seed percentage.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Borone4
- Outcome
- empty seed percentagee4
- Direction
- decreasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e4“Boron tended to decrease the empty seed percentage”
Claim · model-written summary
Applications above 150 mg/L boron significantly reduced the empty seed percentage of the spring crop.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- applications above 150 mg L −1e5
- Outcome
- empty seed percentagee5
- Direction
- reductionse5
- Setting
- spring crope5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e5“for the spring crop, this was incremental and linear with applications above 150 mg L −1 leading to significant reductions in empty seed percentage”
Claim · model-written summary
Seed yield increased linearly with boron in the autumn crop, with significant increases at 200 and 250 mg/L compared with the control.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- borone6
- Outcome
- Seed yielde6
- Direction
- increasede6
- Comparator
- controle6
- Setting
- autumn crope6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e6“Seed yield increased linearly in the autumn crop in response to boron, and 200 and 250 mg L −1 applications gave significant increases in yield compared to the control”
Claim · model-written summary
Boron was linearly related to green leaf area index in the spring crop.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- borone7
- Outcome
- green Leaf area/LAIe7
- Setting
- spring crope7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“open pollinated sunflower ( Helianthus annuus L. cv. Shumos) to boron fertilizer”
e7“boron and green Leaf area/LAI measured at the end of seed filling were linearly related in the spring crop”
The same questions in other papers
boron atom · growth · Helianthus annuus (common sunflower)Results differ
32 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- negative
35 papers more in this group
See all 39 papers →boron atom · yield · Helianthus annuus (common sunflower)Results differ
57 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
60 papers more in this group
See all 64 papers →fertilization · growth · Helianthus annuus (common sunflower)Positive and negative results
133 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- positive
- no effect
142 papers more in this group
See all 146 papers →fertilization · yield · Helianthus annuus (common sunflower)Positive and negative results
343 papers in the same direction as this paper · 18 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- positive
- no effect
361 papers more in this group
See all 365 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.