Claim · model-written summary
At higher anther and carpel boron concentrations, cross pollination had a smaller but significant effect.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- cross pollinatione0
- Outcome
- effect of cross pollinatione0
- Direction
- smallere0
- Value
- 9 mg B kg-1e0
- Qualifier
- 8 mg B kg-1e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In ears with 9 mg B kg-1 in the anthers and 8 mg B kg-1 in the carpel the effect of cross pollination was smaller, but still significant”
t0“wheat”
Title
Boron requirement for reproductive development in wheat
B. Rerkasem; S. Lordkaew; B. Dell Soil Science & Plant Nutrition 1997. doi:10.1080/00380768.1997.11863698
Other claims from this paper (19)
- Intervention effect Boron levels had no detectable effect on vegetative growth.
- Intervention effect Grains per ear increased from 7 at BO to 21 at B3.
- Intervention effect Grain Set Index increased from 22 to 60% with boron.
- Observation Ear boron content at ear emergence ranged from 2.2 to 3.1 mg B kg-1 DW.
- Observation Flag leaf boron content at ear emergence ranged from 4.1 to 4.7 mg B kg-1 DW.
- Association Ear and flag leaf boron content had little relationship with grain number or GSI.
- Observation Boron concentration was higher in the carpel and higher still in the anthers.
- Association Grain set correlated closely with carpel boron concentration (R2 = 0.86).
- Association Grain set correlated closely with anther boron concentration (R2 = 0.77).
- Association A larger dataset confirmed a significant correlation between GSI and carpel and anther boron.
- Intervention effect Cross pollination with Fang 60 doubled grain number at lower anther and carpel boron concentrations.
- Observation The critical boron deficiency concentration in anthers was 10 mg B kg-1.
- Observation The critical boron deficiency concentration in the carpel was 8 mg B kg-1.
- Observation Microsporogenesis in boron-deficient SW41 proceeded normally at least through the uninucleate vacuolate stage.
- Intervention effect Boron deficiency severely affected pollen maturation and produced shrivelled pollen.
- Observation Tapetum and endothecial layer development appeared normal even in sterile anthers.
- Observation Wheat reproduction required more boron than vegetative growth.
- Observation The anthers required more boron than the carpel.
- Observation Female gamete development may require less boron than the apparent carpel requirement.