Claim · model-written summary
The differential drought response of the two varieties may partly reflect underlying physiological differences that account for the greater drought resistance of Cheyenne.
- Taxon
- winter wheat
Triticum aestivume0 - Material
- Cheyennee6
- Outcome
- drought resistancee6
- Qualifier
- underlying physiological differencese6
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The second foliar leaves of Cheyenne, a drought-hardy, and Ponca, a drought-susceptible variety of winter wheat were compared anatomically before and after subjection to specific periods of moisture stress”
e6“The differential response between the two varieties is attributed to underlying physiological differences which may in part account for the greater drought resistance in Cheyenne”
Title
Anatomical Variations in the Wheat Leaf Following Internal Water Stress
Esther J. Ridley; Glenn W. Todd Botanical Gazette 1966. doi:10.1086/336370
Other claims from this paper (10)
- Observation In untreated plants, Ponca had relatively larger amounts of xylem tissue than Cheyenne.
- Observation In untreated plants, Cheyenne had a greater proportion of sclerenchyma tissue than Ponca.
- Intervention effect Water stress thickened leaf cell walls of wheat.
- Intervention effect Water stress increased lignin deposition in xylem elements and bundle sheath cells of wheat leaves.
- Intervention effect Water stress caused progressive plasmolysis in nuclei and plastids of wheat leaves.
- Association The degree of anatomical disorganization was greater in Ponca than in Cheyenne, as correlated with internal moisture stress.
- Association Water content level in the tissue was related to anatomical changes in stressed wheat leaves; the direction is not stated.
- Intervention effect 75% of Cheyenne plants survived when rewatered after 4 days of drought.
- Intervention effect Only 63% of Ponca plants survived when rewatered after 4 days of drought.
- Intervention effect Stressed wheat leaves showed pronounced wilting after more than 4 days of drought.