biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 8:281-287, 1966 | DOI: 10.1007/BF02930663

Polyploidy and pollen variability in Pimpinella monoecia

Sheila Joshi1, S. S. Raghuvanshi1
1 Cytogenetics Laboratory, Department of Botany, University of Lucknow, Lucknow, India

Treatment of seedlings ofPimpinella monoecia with colchicine-gammexane lead to the production of tetraploids. The tetraploids besides showing the meiotic anomalies like univalents, split spindles, multiple spindles, micro-nuclei, nondisjunction, strays, etc., exhibited pollen grains which were triradiate, triangular and quadriradiate while the controls had only one type of bipolar radiosymmetric grains. They have been classified into different types and their frequency has been determinod. A scheme has been presented representing the development of these variable grains from the control type A, which is based on the observation of grains showing intermediate stages. Explanation of this pollen variability has been presented.

Received: July 20, 1965; Published: July 1, 1966  Show citation

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Joshi, S., & Raghuvanshi, S.S. (1966). Polyploidy and pollen variability in Pimpinella monoecia. Biologia plantarum, 8(4), 281-287. doi: 10.1007/BF02930663
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    References

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