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N. W. Simmonds
Articles written in Journal of Genetics
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Volume 47 Issue 3 July 1946 pp 223-241
Genetical and cytological studies of
Musa - VIII. The formation of polyploid spores -
Volume 48 Issue 3 January 1948 pp 285-293
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Volume 49 Issue 1 May 1948 pp 57-68
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Volume 49 Issue 3 December 1949 pp 221-225
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Volume 51 Issue 1 July 1952 pp 32-40
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Volume 51 Issue 3 July 1953 pp 458-469
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Volume 57 Issue 2-3 July 1960 pp 269-278
Megasporogenesis and female fertility in three edible triploid bananas
The female cytology of three edible triploid banana clones (‘Mysore’, ‘Pisang awak’, ‘Bluggoe’) is described. Irregularities of meiosis and embryo-sac formation are numerous and development is often delayed in respect to ovary development or altogether arrested. Mature embryo-sacs are therefore rare. Comparison of seed fertilities of the three clones with their cytology suggests that embryo-sac formation is limiting to fertility in at least two of them. In ‘Gros Michel’, by contrast, embryo sac frequency far exceeds fertility, thus giving some encouragement to the banana breeder’s hope of manipulating the seed yield of this clone. The observations, for technical and statistical reasons, give little information about the origin of polyploid progeny; indirect inference suggests that both “Rosenberg” and “
Musa -type” restitutions are concerned.
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Journal of Genetics
Volume 101, 2022
All articles
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Journal of Genetics | News
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Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
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