Claim · model-written summary
Only common bean had a significant decrease in relative water content.
- Taxon
- Common Bean
Phaseolus vulgarist0 - Outcome
- relative water contente0
- Direction
- reductione0
Not reportedTreatmentComparator
Verbatim
e0“Significant relative water content reduction was detected only in CB.”
t0“Common Bean”
Title
Breeding for Drought Resistance in Common Bean: In Vitro Assay for Root Osmotic Potential
Mohamed F. Mohamed; Azza A. Tawfik Journal of Crop Improvement 2008. doi:10.1080/15427520802224584
Other claims from this paper (16)
- Observation Unstressed common bean calli had higher osmotic potential and relative growth rate than tepary calli.
- Observation Unstressed common bean calli had lower dry matter percentage than tepary calli.
- Intervention effect Water stress did not affect measured parameters for common bean leaf callus or tepary leaf and root calli.
- Intervention effect Common bean root callus osmotic potential decreased under water stress and remained low after recovery.
- Intervention effect Common bean root callus relative growth rate decreased.
- Intervention effect Common bean root callus dry matter increased.
- Intervention effect Stress significantly reduced leaf, stem and root dry mass and leaf area in both bean types.
- Observation Mass reduction was especially high in common bean stem, leaf and root.
- Observation Tepary roots penetrated deeper in soil.
- Intervention effect Common bean root depth did not significantly change with drought.
- Observation Substantial common bean root mass occurred in the upper 10 to 20 cm of soil.
- Observation Common bean had higher stomatal conductance and transpiration than tepary under both watering regimes.
- Observation Soil moisture near common bean roots was higher than near tepary roots during stress.
- Intervention effect Stressed common bean produced no seed yield in the production field.
- Intervention effect Stressed tepary retained 60 to 64% of potential dry seed yield.
- Recommendation The authors recommend the root osmotic potential assay for common bean drought resistance improvement.
Azolla pinnata
Triticum aestivum