Abstract
Lentils are becoming an increasingly more important crop in Saskatchewan with over 230,000 ha planted in 1987.A large part of this acreage was in the Brown soil zone.To date lentil water relations and adaptation to water deficits are largely undescribed.This study was initiated to determine the drought tolerance characteristics of lentils and to compare them to those of wheat growing under the same weather conditions.Dcyland lentils exhibited considerable drought tolerance with large changes in osmotic potential in response to increasing soil water deficits.Despite maintaining high levels of turgor, values of stomatal conductance were very low.This behaviour enabled leaves to maintain high relative water contents and survive an extensive dry period.In contrast wheat displayed little drought tolerance.Consequently throughout the growing season the rates of dry land to irrigated aboveground dry matter was consistently higher for lentils than for wheat and at final harvest was 0. 71 and 0.41 for the two crops, respectively.Wheat and lentils had similar water use efficiencies but lentils used more water because of their greater dry matter production.Very high dry matter production in irrigated lentils did not translocate into high grain yields.
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Claims 10
Claim · model-written summary
Dryland lentils showed substantial drought tolerance with osmotic potential changes as soil water deficit rose.
- Taxon
- lentils
Lens culinarise0 - Treatment
- increasing soil water deficitse0
- Outcome
- osmotic potentiale0
- Direction
- large changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dcyland lentils exhibited considerable drought tolerance with large changes in osmotic potential in response to increasing soil water deficits.”
Claim · model-written summary
Lentils maintained high turgor despite low stomatal conductance.
- Taxon
- lentilsLens culinarist0
- Outcome
- turgore0
- Direction
- high levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite maintaining high levels of turgor, values of stomatal conductance were very low.”
t0“lentils”
Claim · model-written summary
Lentils had very low stomatal conductance.
- Taxon
- lentilsLens culinarist0
- Outcome
- stomatal conductancee0
- Direction
- very lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Despite maintaining high levels of turgor, values of stomatal conductance were very low.”
t0“lentils”
Claim · model-written summary
Lentil leaves maintained high relative water content and survived a long dry spell.
- Taxon
- lentilsLens culinarist0
- Organ / stage
- leavese0
- Outcome
- relative water contentse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This behaviour enabled leaves to maintain high relative water contents and survive an extensive dry period.”
t0“lentils”
Claim · model-written summary
Wheat displayed little drought tolerance.
- Taxon
- wheat
Triticum aestivume0 - Outcome
- drought tolerancee0
- Direction
- littlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In contrast wheat displayed little drought tolerance.”
Claim · model-written summary
The dryland-to-irrigated dry matter ratio was higher for lentils than wheat and reached 0.71 at harvest.
- Taxon
- lentilsLens culinarise0
- Outcome
- rates of dry land to irrigated aboveground dry mattere0
- Direction
- highere0
- Value
- 0. 71e0
- Qualifier
- at final harveste0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rates of dry land to irrigated aboveground dry matter was consistently higher for lentils than for wheat and at final harvest was 0. 71 and 0.41 for the two crops, respectively.”
Claim · model-written summary
Wheat dryland-to-irrigated dry matter ratio was 0.41 at harvest.
- Taxon
- wheatTriticum aestivume0
- Outcome
- rates of dry land to irrigated aboveground dry mattere0
- Value
- 0.41e0
- Qualifier
- at final harveste0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rates of dry land to irrigated aboveground dry matter was consistently higher for lentils than for wheat and at final harvest was 0. 71 and 0.41 for the two crops, respectively.”
Claim · model-written summary
Lentils and wheat had similar water use efficiencies.
- Taxon
- Wheat and lentilsLens culinarisTriticum aestivume0
- Outcome
- water use efficienciese0
- Direction
- similare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and lentils had similar water use efficiencies”
Claim · model-written summary
Lentils used more water than wheat because they produced more dry matter.
- Taxon
- lentilsLens culinarise0
- Outcome
- watere0
- Direction
- moree0
- Qualifier
- because of their greater dry matter productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lentils used more water because of their greater dry matter production.”
Claim · model-written summary
High dry matter production in irrigated lentils did not yield high grain yield.
- Taxon
- lentilsLens culinarise0
- Treatment
- irrigatede0
- Outcome
- grain yieldse0
- Direction
- did not translocate into highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Very high dry matter production in irrigated lentils did not translocate into high grain yields.”
The same questions in other papers
drought · physiology: water · Lens culinaris (lentil)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
1 paper more in this group
See all 5 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.