Abstract
The effect of water deficit on pea seed yield was determined by subjecting a crop of cv ‘Crusader’ to eight irrigation treatments in a field experiment at Lincoln. A mobile shelter excluded all rainfall by covering the crop automatically whenever rain occurred, but otherwise left it exposed to prevailing weather. The two extreme treatments were one that was fully irrigated (FULL) and another that received no water after crop emergence (NIL). The six intermediate treatments imposed maximum potential soil moisture deficits (MPSMD) at various times during crop development. Total water use ranged from 98 to 404 mm in the NIL and FULL treatments, respectively. Seed yield decreased linearly with increasing MPSMD, from 5.3 t/ha in FULL to 3.3 t/ha in NIL. The decrease was mainly due to reduced pod number per plant. In contrast, the number of peas per pod increased with increasing MPSMD. Seed weight was unaffected by the irrigation treatments. The seed yield response was similar to one found for cv ‘Rovar’ in previous experiments at Lincoln, but the effect of water deficit on the yield components differed between the cultivars.
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Claims 7
Claim · model-written summary
Total water use ranged from 98 to 404 mm between NIL and FULL irrigation.
- Taxon
- pea
Lathyrus oleraceust0 - Treatment
- NILe0
- Outcome
- Total water usee0
- Direction
- rangede0
- Value
- 98 to 404 mme0
- Comparator
- FULLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total water use ranged from 98 to 404 mm in the NIL and FULL treatments, respectively”
t0“pea”
Claim · model-written summary
Pea seed yield decreased linearly with increasing soil moisture deficit, from 5.3 t/ha with FULL to 3.3 t/ha with NIL.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- MPSMDe0
- Outcome
- Seed yielde0
- Direction
- decreasede0
- Value
- 5.3 t/hae0
- Qualifier
- 3.3 t/hae0
- Comparator
- FULLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed yield decreased linearly with increasing MPSMD, from 5.3 t/ha in FULL to 3.3 t/ha in NIL”
t0“pea”
Claim · model-written summary
Pod number per plant was reduced with water deficit and mainly accounted for the yield decrease.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- pod number per plante0
- Direction
- reducede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decrease was mainly due to reduced pod number per plant”
t0“pea”
Claim · model-written summary
Peas per pod increased as soil moisture deficit increased.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- MPSMDe0
- Outcome
- number of peas per pode0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the number of peas per pod increased with increasing MPSMD”
t0“pea”
Claim · model-written summary
Seed weight was unaffected by irrigation treatments.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- irrigation treatmentse0
- Outcome
- Seed weighte0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed weight was unaffected by the irrigation treatments”
t0“pea”
Claim · model-written summary
The seed yield response resembled that of cv Rovar in previous Lincoln experiments.
- Taxon
- peaLathyrus oleraceust0
- Material
- cv ‘Rovar’e0
- Outcome
- seed yield responsee0
- Direction
- similare0
- Setting
- Lincolne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The seed yield response was similar to one found for cv ‘Rovar’ in previous experiments at Lincoln”
t0“pea”
Claim · model-written summary
The water deficit effect on yield components differed between cultivars.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- yield componentse0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect of water deficit on the yield components differed between the cultivars”
t0“pea”
The same questions in other papers
irrigation · yield · Lathyrus oleraceus (pea)Results differ
5 papers in the same direction as this paper · 46 in the opposite direction
- positive
- no effect
- positive
48 papers more in this group
See all 52 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.