Abstract
Water stress significantly limits plant growth and crop yield. Hence, the efficient management of soil moisture and the study of metabolic changes which occur in response to drought stress are important for agriculture. The present study was conducted to evaluate the effect of six oilseed rape (Brassica napus L.) genotypes (Rgs003, Sarigol, Option500, Hyola401, Hyola330, and Hyola420), with and without drought stress, and with and without the use of super absorbent polymer, on oil quality and content. A complete randomized blocks design, with a split-plot arrangement, in a 2x2x6 factorial scheme (drought stress x polymer x genotypes), with three replications, was used. The research was carried out in a farm owned by the Seed and Plant Improvement Institute, in Karaj, Iran. Results showed a significant difference for drought stress levels, presence of super absorbent and genotypes on oil content and composition, as well as on glucosinolate content in the oil. Drought stress conditions decreased the oil and linoleic acid contents, but increased the glucosinolate and stearic acid contents. The use of super absorbent polymer increased the linoleic acid content, but decreased other components. It was possible to conclude that, under drought stress conditions, the super absorbent polymer application, for reserving higher amounts of water in itself, increased the soil ability to store water, what increased the plant vegetative period and consequently the oil quality by decreasing saturate fatty acids and increasing unsaturated fatty acids.
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Claims 10
Claim · model-written summary
Drought decreased oil content.
- Taxon
- oilseed rape
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- Drought stress conditionse0
- Outcome
- oile0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Drought stress conditions decreased the oil and linoleic acid contents, but increased the glucosinolate and stearic acid contents.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Drought decreased linoleic acid content.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- Drought stress conditionse0
- Outcome
- linoleic acid contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress conditions decreased the oil and linoleic acid contents, but increased the glucosinolate and stearic acid contents.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Drought increased glucosinolate content.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- Drought stress conditionse0
- Outcome
- glucosinolatee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress conditions decreased the oil and linoleic acid contents, but increased the glucosinolate and stearic acid contents.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Drought increased stearic acid content.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- Drought stress conditionse0
- Outcome
- stearic acid contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress conditions decreased the oil and linoleic acid contents, but increased the glucosinolate and stearic acid contents.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Absorbent polymer increased linoleic acid content.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- super absorbent polymere0
- Outcome
- linoleic acid contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of super absorbent polymer increased the linoleic acid content, but decreased other components.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Absorbent polymer decreased other oil components.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- super absorbent polymere0
- Outcome
- other componentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of super absorbent polymer increased the linoleic acid content, but decreased other components.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Under drought, absorbent polymer increased soil water storage.
- Taxon
- oilseed rapeBrassica napust0
- Treatment
- super absorbent polymer applicatione0
- Outcome
- soil ability to store watere0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under drought stress conditions, the super absorbent polymer application, for reserving higher amounts of water in itself, increased the soil ability to store water”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Under drought, polymer application increased the plant vegetative period.
- Taxon
- oilseed rapeBrassica napust0
- Outcome
- plant vegetative periode0
- Direction
- increasede0
- Qualifier
- oil qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“what increased the plant vegetative period and consequently the oil quality by decreasing saturate fatty acids and increasing unsaturated fatty acids.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Under drought, polymer application decreased saturated fatty acids.
- Taxon
- oilseed rapeBrassica napust0
- Outcome
- saturate fatty acidse0
- Direction
- decreasinge0
- Qualifier
- oil qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil quality by decreasing saturate fatty acids and increasing unsaturated fatty acids.”
t0“oilseed rape (Brassica napus L.)”
Claim · model-written summary
Under drought, polymer application increased unsaturated fatty acids.
- Taxon
- oilseed rapeBrassica napust0
- Outcome
- unsaturated fatty acidse0
- Direction
- increasinge0
- Qualifier
- oil qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil quality by decreasing saturate fatty acids and increasing unsaturated fatty acids.”
t0“oilseed rape (Brassica napus L.)”
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