Abstract
A field trial was carried out on a Wakanui silt loam from December 2003 to April 2004 at Lincoln University, Canterbury to determine the influence of irrigation level (nil and full), nitrogen (N) (0 and 150 kg/ha N) and a range of plant populations (238, 389, 583 and 769 plants/m) on yield and yield components of linseed (Linum usitatissimum (L.) Griesb.). The design was a split plot with irrigation as main plots and factorial combinations of N and plant population as sub-plots. Linseed seed, straw and total dry matter (TDM) yield responded well to irrigation. Total dry matter production increased with irrigation from 509 g/m to 763 g/m. The main effects of plant population on seed and straw yield were also significant. However, N and plant density did not influence TDM production. The fibre yield/plant in irrigated plots was three times more than in rainfed plants. Without irrigation, fibre yield/plant did not respond to N. In irrigated plots, plants given 150 kg N/ha produced nearly twice as much fibre (0.8 g/plant) than plants which received no N (0.5 g/plant). Plant population influenced production of primary branches more in irrigated plants than in unirrigated plants. Seed yield components except for the thousand seed weight (TSW), responded favourably to irrigation. Addition of N had no effect on yield components except for seed yield/plant. Increasing the plant population reduced capsule production/plant. Under dryland conditions plant population had little effect on capsule number/plant and seed yield. However, there was a large effect in plants from irrigated plots. Additional keywords: Linum usitatissimum, flax, irrigation, nitrogen, plant population.
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Claims 13
Claim · model-written summary
Linseed seed, straw and total dry matter yield increased with irrigation.
Verbatim
e0“on yield and yield components of linseed”
e1“irrigation level (nil and full)”
e2“Linseed seed, straw and total dry matter (TDM) yield responded well to irrigation”
Claim · model-written summary
Total dry matter production increased with irrigation from 509 g/m to 763 g/m.
- Taxon
- linseede0
- Treatment
- irrigatione3
- Outcome
- Total dry matter productione3
- Direction
- increasede3
- Value
- 509 g/m to 763 g/me3
Not reportedComparator
Verbatim
e0“on yield and yield components of linseed”
e3“Total dry matter production increased with irrigation from 509 g/m to 763 g/m”
Claim · model-written summary
Plant population had a significant main effect on seed and straw yield of linseed.
Not reportedComparatorDirection
Verbatim
e0“on yield and yield components of linseed”
e4“The main effects of plant population on seed and straw yield were also significant”
Claim · model-written summary
Nitrogen and plant density did not influence total dry matter production of linseed.
Not reportedComparatorDirection
Verbatim
e0“on yield and yield components of linseed”
e5“However, N and plant density did not influence TDM production”
Claim · model-written summary
Fibre yield per plant in irrigated plots was three times that in rainfed plants.
Verbatim
e0“on yield and yield components of linseed”
e6“The fibre yield/plant in irrigated plots was three times more than in rainfed plants”
Claim · model-written summary
Without irrigation, nitrogen did not change fibre yield per plant of linseed.
Not reportedComparatorDirection
Verbatim
e0“on yield and yield components of linseed”
e7“Without irrigation, fibre yield/plant did not respond to N”
Claim · model-written summary
In irrigated plots, 150 kg N/ha gave nearly twice as much linseed fibre per plant as no nitrogen.
Verbatim
e0“on yield and yield components of linseed”
e1“In irrigated plots, plants given 150 kg N/ha produced nearly twice as much fibre (0.8 g/plant) than plants which received no N (0.5 g/plant)”
Claim · model-written summary
Plant population influenced primary branch production more in irrigated than in unirrigated linseed.
Verbatim
e0“on yield and yield components of linseed”
e1“Plant population influenced production of primary branches more in irrigated plants than in unirrigated plants”
Claim · model-written summary
Seed yield components other than thousand seed weight increased with irrigation.
- Taxon
- linseede0
- Treatment
- irrigatione1
- Outcome
- Seed yield componentse1
- Direction
- increaseinferrede1
- Qualifier
- except for the thousand seed weight (TSW)e1
Not reportedComparator
Verbatim
e0“on yield and yield components of linseed”
e1“Seed yield components except for the thousand seed weight (TSW), responded favourably to irrigation”
Claim · model-written summary
Nitrogen addition had no effect on linseed yield components except seed yield per plant.
- Taxon
- linseede0
- Treatment
- Addition of Ne1
- Outcome
- yield componentse1
- Qualifier
- except for seed yield/plante1
Not reportedComparatorDirection
Verbatim
e0“on yield and yield components of linseed”
e1“Addition of N had no effect on yield components except for seed yield/plant”
Claim · model-written summary
Increasing plant population reduced capsule production per plant in linseed.
- Taxon
- linseede0
- Treatment
- Increasing the plant populatione1
- Outcome
- capsule production/plante1
- Direction
- reducede1
Not reportedComparator
Verbatim
e0“on yield and yield components of linseed”
e1“Increasing the plant population reduced capsule production/plant”
Claim · model-written summary
Under dryland conditions plant population had little effect on capsule number per plant and seed yield.
- Taxon
- linseede0
- Treatment
- plant populatione1
- Outcome
- capsule number/plant and seed yielde1
- Setting
- dryland conditionse1
Not reportedComparatorDirection
Verbatim
e0“on yield and yield components of linseed”
e1“Under dryland conditions plant population had little effect on capsule number/plant and seed yield”
Claim · model-written summary
Plant population had a large effect on linseed in irrigated plots, compared with dryland conditions.
- Taxon
- linseede0
- Treatment
- plant populatione1
- Outcome
- large effecte2
- Comparator
- dryland conditionse1
- Setting
- irrigated plotse2
Not reportedDirection
Verbatim
e0“on yield and yield components of linseed”
e1“Under dryland conditions plant population had little effect on capsule number/plant and seed yield”
e2“However, there was a large effect in plants from irrigated plots”
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