Abstract
An experiment was conducted under controlled conditions in a glasshouse to determine the sensitivity of reproductive development of lentil (Lens culinaris Medikus) genotypes of different origins to water deficit. The 3 genotypes were Cassab (West Asia), Simal (South Asia), and ILL 7979 a crossbred between a West Asian genotype and a South Asian genotype. Two watering treatments, a well-watered control and a water-deficit treatment, were imposed from the beginning of podding. Leaf water relations, total dry matter production, leaf area, and number of flowers, pods, and seeds were measured from podding to maturity. In the well-watered plants the leaf water potential (?leaf) before sunrise ranged from -0.6 to -0.8 MPa. When subjected to water deficit, ?leaf fell to about -3.0 MPa. Genotypes did not show variation in vegetative growth or seed yield under either well-watered or water-deficit conditions, but they differed significantly in the number of flowers, fruiting nodes, pods, and seeds, and harvest index (HI). Seed size in Cassab was 61% larger than ILL 7979 and 105% larger than Simal. The small-seeded genotypes produced the highest number of fruiting nodes and hence a greater number of flowers, pods, and seeds. Seed size was positively correlated with seed growth rate (r = 0.77**) and seed fill duration (r = 0.45*). The water deficit reduced plant height by about 20%, leaf area by 48–81%, and total dry matter by about 60% compared with well-watered plants. The water deficit reduced flower number by 35–46% and increased seed abortion (empty pods) by 17–46%. The water deficit had no effect on the maximum seed growth rate, seed fill duration, or final seed size in any of the 3 genotypes. Therefore, the 70% reduction in seed yield induced by the water deficit was primarily due to a reduction in pod and seed numbers (by 59–70%) rather than individual seed growth rate and seed size.
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Claims 16
Claim · model-written summary
Water deficit lowered predawn leaf water potential to about -3.0 MPa.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When subjected to water deficit, ?leaf fell to about -3.0 MPa.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Genotypes did not vary in vegetative growth or seed yield under either watering condition.
- Taxon
- lentil
Lens culinarist0 - Outcome
- vegetative growth or seed yielde0
- Direction
- did not show variatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes did not show variation in vegetative growth or seed yield under either well-watered or water-deficit conditions”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Genotypes differed significantly in flower, fruiting node, pod, and seed numbers and harvest index.
- Taxon
- lentilLens culinarist0
- Outcome
- number of flowers, fruiting nodes, pods, and seeds, and harvest index (HI)e0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“they differed significantly in the number of flowers, fruiting nodes, pods, and seeds, and harvest index (HI)”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Cassab seed size was 61% larger than ILL 7979.
- Taxon
- lentilLens culinarist0
- Material
- Cassabe0
- Outcome
- Seed sizee0
- Direction
- largere0
- Value
- 61%e0
- Comparator
- ILL 7979e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed size in Cassab was 61% larger than ILL 7979”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Cassab seed size was 105% larger than Simal.
- Taxon
- lentilLens culinarist0
- Material
- Cassabe0
- Outcome
- Seed sizee0
- Direction
- largere0
- Value
- 105%e0
- Comparator
- Simale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed size in Cassab was 61% larger than ILL 7979 and 105% larger than Simal”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Small-seeded genotypes had more fruiting nodes, flowers, pods and seeds.
- Taxon
- lentilLens culinarist0
- Material
- small-seeded genotypese0
- Outcome
- number of fruiting nodes and hence a greater number of flowers, pods, and seedse0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The small-seeded genotypes produced the highest number of fruiting nodes and hence a greater number of flowers, pods, and seeds.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Seed size correlated positively with seed growth rate (r = 0.77**).
- Taxon
- lentilLens culinarist0
- Organ / stage
- seede0
- Outcome
- Seed sizee0
- Direction
- positively correlatede0
- Value
- r = 0.77**e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed size was positively correlated with seed growth rate (r = 0.77**)”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Seed size correlated positively with seed fill duration (r = 0.45*).
- Taxon
- lentilLens culinarist0
- Organ / stage
- seede0
- Outcome
- Seed sizee0
- Direction
- positively correlatede0
- Value
- r = 0.45*e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed size was positively correlated with seed growth rate (r = 0.77**) and seed fill duration (r = 0.45*)”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit reduced plant height by about 20%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- plant heighte0
- Direction
- reducede0
- Value
- about 20%e0
- Comparator
- well-watered plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit reduced plant height by about 20%, leaf area by 48–81%, and total dry matter by about 60% compared with well-watered plants.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit reduced leaf area by 48–81%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- leaf areae0
- Direction
- reducede0
- Value
- 48–81%e0
- Comparator
- well-watered plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit reduced plant height by about 20%, leaf area by 48–81%, and total dry matter by about 60% compared with well-watered plants.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit reduced total dry matter by about 60%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- total dry mattere0
- Direction
- reducede0
- Value
- about 60%e0
- Comparator
- well-watered plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit reduced plant height by about 20%, leaf area by 48–81%, and total dry matter by about 60% compared with well-watered plants.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit reduced flower number by 35–46%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- flower numbere0
- Direction
- reducede0
- Value
- 35–46%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit reduced flower number by 35–46% and increased seed abortion (empty pods) by 17–46%.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit increased seed abortion by 17–46%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- seed abortion (empty pods)e0
- Direction
- increasede0
- Value
- 17–46%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit reduced flower number by 35–46% and increased seed abortion (empty pods) by 17–46%.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit had no effect on maximum seed growth rate, seed fill duration or final seed size.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- maximum seed growth rate, seed fill duration, or final seed sizee0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit had no effect on the maximum seed growth rate, seed fill duration, or final seed size in any of the 3 genotypes.”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit reduced seed yield by 70%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficite0
- Outcome
- seed yielde0
- Direction
- reductione0
- Value
- 70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 70% reduction in seed yield induced by the water deficit”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
Claim · model-written summary
Water deficit reduced pod and seed numbers by 59–70%.
- Taxon
- lentilLens culinarist0
- Treatment
- water deficitt0
- Outcome
- pod and seed numberse0
- Direction
- reductione0
- Value
- 59–70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduction in pod and seed numbers (by 59–70%)”
t0“A water deficit during pod development in lentils reduces flower and pod numbers but not seed size”
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See all 21 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.