Claim · model-written summary
Corn pollen germination was only a trace below 50 p.p.m. calcium chloride.
- Taxon
- Corn
Zea mays subsp. mayse1 - Treatment
- below 50 p.p.m. CaCl 2 ∙2H 2 Oe0
- Outcome
- germinatione0
- Direction
- Only a tracee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only a trace of germination occurred below 50 p.p.m. CaCl 2 ∙2H 2 O”
e1“Corn pollen germination”
Title
F. S. Cook; D. B. Walden Canadian Journal of Botany 1967. doi:10.1139/b67-067
Other claims from this paper (14)
- Observation Corn pollen tubes initially grew at 12 μ/min at 30 °C.
- Observation After 30 to 60 minutes, corn pollen tube growth rates fell to about half.
- Association Early corn pollen tube elongation increased with Q 10 of 2 from 12 to 30 °C.
- Association Corn pollen germination initiation time was a hyperbolic function of temperature.
- Observation Corn pollen germination peaked at 20–23 °C.
- Observation Corn pollen tube elongation rate in the first hour peaked at 30–33 °C.
- Intervention effect Corn pollen germination peaked at 250–300 p.p.m. calcium chloride.
- Intervention effect Calcium level did not change corn pollen germination initiation time.
- Intervention effect Calcium level did not change corn pollen tube elongation rate at 30 °C.
- Intervention effect Calcium level did not change corn pollen tube lengths after 30 or 60 minutes.
- Association A pollen population effect on corn pollen germination was stronger at low calcium.
- Observation Tests found no corn pollen tube chemotropism toward a calcium gradient.
- Observation Style and endosperm pieces also did not induce corn pollen tube chemotropism.
- Observation Observed corn pollen tube growth did not sustain high growth rates.