Paper · 2014

Effect of sowing dates on the morphological characteristics, oil yield and composition of fatty acids in flax (Linum usitatissimum L.)

Sakineh Pourranjbari Saghayesh; Mohammad Moghaddam; Leila Mehdizadeh

10
claims
20
verbatim quotes
13
citations
2
research areas
—
Not open access

Abstract

The effect of different sowing dates on growth, development, morphological characteristics, yield, oil content and fatty acid composition of Linum usitatissimum L. was evaluated in semi-arid condition of Iran. An field experiment was performed in the basic of randomized complete blocks design with three replications for 6 sowing dates including (March 3, March 19, April 1, April 17, May 2, May 18). Our findings showed that sowing dates had significant effect on all morphological characteristics except thousand seed weight and oil percentage. An earlier sowing date led to better results. GC analyses revealed five fatty acids which linolenic acid was a major compound. Delaying in sowing decreased the linoleic and linolenic acid content but increased the palmitic and oleic acids. For the best production and fatty acid contents, it is postulated that the sowing date offers a high economic yield and oil quality. In conclusion, plants sown at March 3 encountered favorable environmental conditions resulting in significantly high economic yield compared to other sowing dates.

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Claims 10

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sowing dates significantly affected flax morphological characteristics.

Treatment
sowing datese0
Outcome
morphological characteristicse0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“sowing dates had significant effect on all morphological characteristics except thousand seed weight and oil percentage.”

✓ located verbatim in the source · abstract, characters 427–547 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sowing dates did not significantly affect thousand seed weight.

Treatment
sowing datese0
Outcome
thousand seed weighte0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“sowing dates had significant effect on all morphological characteristics except thousand seed weight and oil percentage.”

✓ located verbatim in the source · abstract, characters 427–547 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Sowing dates did not significantly affect oil percentage.

Treatment
sowing datese0
Outcome
oil percentagee0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“sowing dates had significant effect on all morphological characteristics except thousand seed weight and oil percentage.”

✓ located verbatim in the source · abstract, characters 427–547 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Earlier sowing gave better overall results.

Treatment
earlier sowing datee0
Outcome
better resultse0
Direction
bettere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“An earlier sowing date led to better results.”

✓ located verbatim in the source · abstract, characters 548–593 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

GC analysis detected five fatty acids, with linolenic acid dominant.

Outcome
linolenic acid was a major compounde0
Value
five fatty acidse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“GC analyses revealed five fatty acids which linolenic acid was a major compound.”

✓ located verbatim in the source · abstract, characters 594–674 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Later sowing decreased linoleic acid content.

Treatment
Delaying in sowinge0
Outcome
linoleice0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“Delaying in sowing decreased the linoleic and linolenic acid content”

✓ located verbatim in the source · abstract, characters 675–743 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Later sowing decreased linolenic acid content.

Treatment
Delaying in sowinge0
Outcome
linolenic acid contente0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“Delaying in sowing decreased the linoleic and linolenic acid content”

✓ located verbatim in the source · abstract, characters 675–743 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Later sowing increased palmitic acid content.

Treatment
Delaying in sowinge0
Outcome
palmitice0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“Delaying in sowing decreased the linoleic and linolenic acid content but increased the palmitic and oleic acids.”

✓ located verbatim in the source · abstract, characters 675–787 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Later sowing increased oleic acid content.

Treatment
Delaying in sowinge0
Outcome
oleic acidse0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“Delaying in sowing decreased the linoleic and linolenic acid content but increased the palmitic and oleic acids.”

✓ located verbatim in the source · abstract, characters 675–787 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

March 3 sowing produced significantly higher economic yield than other dates.

Treatment
March 3e0
Outcome
economic yielde0
Direction
highe0
Comparator
other sowing datese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“flax (Linum usitatissimum L.)”

✓ located verbatim in the source · title, characters 105–134 · show in text ↑
e0

“plants sown at March 3 encountered favorable environmental conditions resulting in significantly high economic yield compared to other sowing dates.”

✓ located verbatim in the source · abstract, characters 936–1084 · show in text ↑

sowing time · quality: oil · Linum usitatissimum (flax)Positive and negative results

7 papers: 4 positive, 3 negative or no effect

2 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. negative
  3. positive

3 papers more in this group

See all 7 papers →

sowing time · yield · Linum usitatissimum (flax)Positive and negative results

20 papers: 13 positive, 7 negative or no effect

6 papers in the same direction as this paper · 13 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 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.