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Variation in pollen viability in the onion (Allium cepaL.)

✍ Scribed by D. J. Ockendon; P. J. Gates

Book ID
104619441
Publisher
Springer
Year
1976
Tongue
English
Weight
398 KB
Volume
25
Category
Article
ISSN
0014-2336

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✦ Synopsis

The pollen viability of onions in a glasshouse was recorded from May to October 1975, using the fluorescein test. The average viability was 60-95 % for most of this period but fell to less than 1% during the last two weeks of August. There was great variation in pollen viability between anthers within a flower and between flowers within a head. Attempts to induce pollen inviability by low temperature treatments at various stages of inflorescence development were unsuccessful. Low levels of pollen inviability appear to be a characteristic feature of onions, but the high level ofinviability which was found both in this and in a previous season was associated particularly with the August period.

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