Mean germination time estimates the relative emergence of seed lots of three cucurbit crops under stress conditions

dc.authoridMavi, Kazim/0000-0003-0195-8539
dc.authoridDEMIR, IBRAHIM/0000-0003-4515-0689
dc.contributor.authorMavi, K.
dc.contributor.authorDemir, I.
dc.contributor.authorMatthews, S.
dc.date.accessioned2024-09-18T21:06:34Z
dc.date.available2024-09-18T21:06:34Z
dc.date.issued2010
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractA wide range of seedling emergence in commercial seed lots of watermelon (10 lots), melon (10 lots) and cucumber (9 lots), all with standard germinations above 98%, was seen in low temperature emergence (LTE). high temperature (HTE) and an 8 cm deep sowing (MSE) in the field and in salt stress conditions (SSE) in trays at 20 degrees C. Final emergence was closely related to both the rate of emergence, measured as mean emergence time (MET; the reciprocal of the rate of emergence), and to the mean germination time (MGT; the reciprocal of the rate of germination) for physiological germination (2 mm radicle) in the laboratory at 25 degrees C. Slower germinating and emerging lots, so-called low vigour lots, had lower levels of emergence in all sowings. Single early counts of physiological germination identified low vigour lots for all three species and are suggested as a quick routine test. The physiological age of the seed lots, determined using accelerated ageing (45 degrees C in 100% relative humidity) and controlled deterioration (45 degrees C and 20 or 24% moisture content), was significantly related to MGT which was higher (i.e. germination was slower) in physiologically older seed. Previous work suggests that cucurbit seeds appear to retain germination capacity over several years although ageing is reflected in a slower rate of germination (high MGT). MGT can also he described as the length of the lag period from the start of imbibition to radicle protrusion. We propose that this period is needed for the repair of the effects of ageing and is therefore longer in aged seeds.en_US
dc.identifier.doi10.15258/sst.2010.38.1.02
dc.identifier.endpage25en_US
dc.identifier.issn0251-0952
dc.identifier.issn1819-5717
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-77950643773en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage14en_US
dc.identifier.urihttps://doi.org/10.15258/sst.2010.38.1.02
dc.identifier.urihttps://hdl.handle.net/20.500.12483/13698
dc.identifier.volume38en_US
dc.identifier.wosWOS:000276490900002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIsta-Int Seed Testing Assocen_US
dc.relation.ispartofSeed Science and Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAccelerated Aging Testsen_US
dc.subjectMaize Zea-Maysen_US
dc.subjectControlled Deteriorationen_US
dc.subjectField Performanceen_US
dc.subjectVigor Differencesen_US
dc.subjectLongevityen_US
dc.subjectSeedlingsen_US
dc.subjectQualityen_US
dc.subjectStorageen_US
dc.subjectGrowthen_US
dc.titleMean germination time estimates the relative emergence of seed lots of three cucurbit crops under stress conditionsen_US
dc.typeArticleen_US

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