A Comparison of the Quantitative Effects of Seed Moisture Content and Temperature on the Accumulation of Chromosome Damage and Loss of Seed Viability in Lettuce

    Rao, N K and Roberts, E H and Ellis, R H (1988) A Comparison of the Quantitative Effects of Seed Moisture Content and Temperature on the Accumulation of Chromosome Damage and Loss of Seed Viability in Lettuce. Annals of Botany, 62 (3). pp. 245-248. ISSN 0305-7364

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    Abstract

    The rate of accumulation of cells containing chromosome aberrations in lettuce (Lactuca sativa L.) seeds is a positive function of temperature and moisture content. It may be described by an equation similar to that for loss of seed viability. The relative effect of temperature on the rates of loss of viability and accumulation of chromosome aberrations is the same. In contrast, the relative effect of moisture on the rate of loss of viability is greater than that for the rate of accumulation of aberrations. Hence considerably more chromosome damage accumulates before death in drier lettuce seeds

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Uncontrolled Keywords: Lactuca sativa, lettuce, seed storage, seed viability, seed longevity, chromosomal aberrations temperature, moisture content
    Subjects: Others > Genetics and Genomics
    Depositing User: Ms K Syamalamba
    Date Deposited: 29 Nov 2011 11:08
    Last Modified: 29 Nov 2011 11:08
    URI: http://oar.icrisat.org/id/eprint/4498
    Official URL: http://aob.oxfordjournals.org/content/62/3/245.abs...
    Projects: UNSPECIFIED
    Funders: Association of Commonwealth Universities
    Acknowledgement: This work was undertaken while N.K. Rao was on leave from the International Crops Research Institute for the Semi-Arid Tropics, Hyderabad (ICRISAT) under the sponsorhip of the Association of Commonwealth Universities. It complements work at Reading supported by the International Board for Plant Genetic Resources, Rome (IBPGR). We are most grateful to these organizations for their support
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