The quantification of ageing and survival in orthodox seeds

  • Ellis R
  • Roberts E
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Abstract

Orthodox seed ageing, survival and longevity are discussed in relation to environmental factors during storage. It is explained why it has been necessary to introduce a new improved viability equation to quantify the relationship between seed longevity and storage environment. This new equation may be applied to the viability of seed lots of all cultivars of a species after any period under a very wide range of storage environments. Other symptoms of seed deterioration which occur before death are discussed in terms of both the individual and the population. Evidence is presented for a model which represents and quantifies the development of ageing symptoms in seed lots. Quantification du vieillissernent et de la survie chez les senzences orthodoxes Le vieillissement, la survie et la longtviti: des semences orthodoxes sont discutks en relation avec lec facteurs du milieu pendant la conservation. On explique pourquoi il a 6ti: ntcessaire d'introduire une nouvelle Cquation amtliorke de la viabiliti: pour quantifier la relation entre la longtvitt des semences et le milieu de conservation. Cette nouvell Cquation peut 6tre appliqute pour prkdire la viabilitt des lots desemences de tous les cultivars d'une espkce aprks n'importe quelle ptriode et pour une gamme tr&s ttendue de conditions de conservation. D'autres symptiimes de la dCterioration des semences, qui surviennent avant la mort, sont discutzs en termes d'individu et de population. On presente des preuves $ I'appui d'un modele qui reprtsente et quantifie le dtveloppement des sympt8mes de vieillisement dans les lots de semences.

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APA

Ellis, R. H., & Roberts, E. H. (1981). The quantification of ageing and survival in orthodox seeds. Seed Sci. & Technol (Vol. 9, pp. 373–409).

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