Claim · model-written summary
NaN(3) dormancy breaking is pH dependent, with the highest germination where uncharged species form.
- Taxon
- red rice (Oryza sativa)
Oryza sativae0 - Treatment
- NaN(3) (0.5 millimolar)e0
- Outcome
- germination percentagese0
- Direction
- higheste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of NaN(3) (0.5 millimolar), hydroxylamine-HCl (10-18 millimolar), and potassium cyanide (1 millimolar) as dormancy-breaking agents of dehulled red rice (Oryza sativa) is pH-dependent such that medium pH values favoring formation of the uncharged chemical species resulted in the highest germination percentages.”
Title
Marc Alan Cohn; John A. Hughes PLANT PHYSIOLOGY 1986. doi:10.1104/pp.80.2.531
Other claims from this paper (9)
- Intervention effect Hydroxylamine-HCl dormancy breaking is pH dependent, with highest germination where uncharged species form.
- Intervention effect Potassium cyanide dormancy breaking is pH dependent, with highest germination where uncharged species form.
- Intervention effect pH alone did not promote germination between pH 3 and 10.
- Intervention effect NaN(3) required 8 hours at pH 4 for at least 90% germination.
- Intervention effect KCN required 24 hours at pH 8 for at least 90% germination.
- Intervention effect NH(2)OH-HCl required 72 hours at pH 6 or 7 for at least 90% germination.
- Intervention effect Dehulled seeds first imbibed in water had only slightly reduced germination after chemical treatment.
- Observation Intact seeds stayed dormant under NaN(3), KCN, or NH(2)OH-HCl unless partially dry-afterripened.
- Observation pH dependence of dormancy-breaking chemicals was reduced in intact afterripening seeds.