Abstract
Growing-season conditions influence the concentration of glucosinolates in the meal of rapeseed, but the reasons for this are unknown. We studied the effect of water stress on glucosinolate concentration in the seed meal of Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip. Plants were either wellwatered or given a reduced supply of water which was managed to produce a desired degree of plant water stress either throughout growth or only after flowering. Glucosinolate concentration in seeds increased (P<0.01) in both cultivars from an average 18.2 µmol/g in unstressed plants to 35.0 µmol/g under the influence of water stress. There was no significant difference between the 2 stressed treatments. Water stress also decreased (P < 0.0 1) seed oil concentrations (from 36.9 to 31.4%), yields (from 5.3 to 0.9 g/plant) and 1000-grain weights (from 4.1 to 3.0 g).
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Claims 5
Claim · model-written summary
Water stress increased seed glucosinolate concentration in both cultivars from an average of 18.2 µmol/g in unstressed plants to 35.0 µmol/g.
- Taxon
- Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse0 - Material
- both cultivarse1
- Treatment
- water stresse1
- Outcome
- Glucosinolate concentration in seedse1
- Direction
- increasede1
- Value
- 35.0 µmol/ge1
- Qualifier
- an average 18.2 µmol/ge1
- Comparator
- unstressed plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip”
e1“Glucosinolate concentration in seeds increased (P<0.01) in both cultivars from an average 18.2 µmol/g in unstressed plants to 35.0 µmol/g under the influence of water stress”
Claim · model-written summary
Seed glucosinolate did not differ significantly between the two water stress regimes (stress throughout growth versus only after flowering).
- Taxon
- Brassica napus cv. Wesbrook and Brassica rapa cv. BunyipBrassica napuse0
- Treatment
- throughout growthe3
- Outcome
- difference between the 2 stressed treatmentse2
- Direction
- no significant differencee2
- Comparator
- only after floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip”
e2“There was no significant difference between the 2 stressed treatments”
e3“either throughout growth or only after flowering”
Claim · model-written summary
Water stress decreased seed oil concentration from 36.9 to 31.4%.
- Taxon
- Brassica napus cv. Wesbrook and Brassica rapa cv. BunyipBrassica napuse0
- Treatment
- Water stresse4
- Outcome
- seed oil concentrationse4
- Direction
- decreasede4
- Value
- from 36.9 to 31.4%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip”
e4“Water stress also decreased (P < 0.0 1) seed oil concentrations (from 36.9 to 31.4%), yields (from 5.3 to 0.9 g/plant) and 1000-grain weights (from 4.1 to 3.0 g)”
Claim · model-written summary
Water stress decreased seed yield from 5.3 to 0.9 g/plant.
- Taxon
- Brassica napus cv. Wesbrook and Brassica rapa cv. BunyipBrassica napuse0
- Treatment
- Water stresse4
- Outcome
- yieldse4
- Direction
- decreasede4
- Value
- from 5.3 to 0.9 g/plante4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip”
e4“Water stress also decreased (P < 0.0 1) seed oil concentrations (from 36.9 to 31.4%), yields (from 5.3 to 0.9 g/plant) and 1000-grain weights (from 4.1 to 3.0 g)”
Claim · model-written summary
Water stress decreased 1000-grain weight from 4.1 to 3.0 g.
- Taxon
- Brassica napus cv. Wesbrook and Brassica rapa cv. BunyipBrassica napuse0
- Treatment
- Water stresse4
- Outcome
- 1000-grain weightse4
- Direction
- decreasede4
- Value
- from 4.1 to 3.0 ge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassica napus cv. Wesbrook and Brassica rapa cv. Bunyip”
e4“Water stress also decreased (P < 0.0 1) seed oil concentrations (from 36.9 to 31.4%), yields (from 5.3 to 0.9 g/plant) and 1000-grain weights (from 4.1 to 3.0 g)”
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