New Zealand Journal of Botany · 1994 · 14 citations · 4 references
AgriculturePlant BiologyPlant SciencesPlant PhysiologySeed ScienceSeed TechnologySeed BiologySeed GerminationSeed PhysiologySeed StorageSeedling SurvivalGermination CharacterizationGibberellic Acid TreatmentGibberellin-mediated Seed GerminationInterspecific ComparisonsSeed Germination BiologySeed Germination PhysiologyStratificationTemperature Effects On Germination
Abstract Imbibed seeds of Pittosporum eugenioides, P. obcordatum, P. tenuifolium , and P. crassifolium showed almost no germination and a marked loss of viability after 3–4 months moist storage in light at 21°C. In contrast, 8 weeks or more of low temperature stratification resulted in almost complete germination of seeds of P. eugenioides and P. obcordatum , and increased germination in seeds of P. tenuifolium , although stratified seeds of P. crassifolium failed to germinate. Application of 10 ‐3 M gibberellic acid substituted for the stratification requirement only in seeds of P. obcordatum . Interspecific differences in the response to stratification of these four species are apparent.
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