Claim · model-written summary
Under water stress, total root length was significantly increased in sorghum and pearl millet.
- Taxon
- sorghum and pearl millet
Cenchrus americanus
Sorghume2 - Treatment
- Under water stresse2
- Outcome
- total root lengthe2
- Direction
- increasede2
- Comparator
- continued in otherse1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Irrigation was stopped in some plots 16 days after sowing and was continued in others”
e2“Under water stress, total root length was significantly reduced in maize, was not affected in barnyard millet, and was significantly increased in sorghum and pearl millet”
Title
Asana MATSUURA; Shinobu INANAGA; Yukihiro SUGIMOTO Japanese Journal of Crop Science 1996. doi:10.1626/jcs.65.352
Other claims from this paper (14)
- Intervention effect Stopping irrigation increased resistance to water flow 2- to 21-fold across the four crops.
- Intervention effect Stopping irrigation decreased soil water potential by -0.004 to -12.7 MPa.
- Intervention effect Stopping irrigation decreased relative growth rate by 15 to 27 percent.
- Intervention effect Stopping irrigation decreased net assimilation rate by 17 to 34 percent.
- Intervention effect Stopping irrigation decreased photosynthetic rate by 16 to 45 percent.
- Intervention effect Pearl millet and sorghum, identified as drought tolerant, showed the lowest reductions in RGR under soil drying.
- Mechanism Relative growth rate was predominantly limited by net assimilation rate in all four crops.
- Mechanism Photosynthetic rate was preponderantly limited by stomatal conductance in the crops.
- Association Stomatal conductance correlated significantly with leaf xylem water potential.
- Observation Pearl millet and sorghum showed the highest leaf water status.
- Observation Root systems of all four crops reached 140 cm soil depth.
- Intervention effect Under water stress, total root length was significantly reduced in maize.
- Intervention effect Under water stress, total root length was not affected in barnyard millet.
- Association Drought tolerance in sorghum and pearl millet was associated with sustained water uptake through increased total root length and high leaf water status under soil drying at the vegetative stage.