Mendel's principles of heredity : a defence / by W. Bateson ; with a translation of Mendel's original papers on hybridisation.

Date:
1902
Catalogue details

Licence: In copyright

Credit: Mendel's principles of heredity : a defence / by W. Bateson ; with a translation of Mendel's original papers on hybridisation. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    22/239 (page 15)
    ERRATA. p. 22, par. 3, line 2, for falls read fall. p. 63, line 12, for AabbC read AaBbc. p. 66, in heading, for of hybrids read of the hybrids. Note to p. 125. None of the yellow seeds produced by Laxton's Alpha germinated, though almost all the green seeds sown gave healthy plants. The same was found in the case of Express, another variety which bore some yellow seeds. In the case of Blue Peter, on the contrary, the yellow seeds have grown as well as the green ones. Few however were wholly yellow. Of nine yellow seeds produced by crossing green varieties together (p. 131), six did not germinate, and three which did gave weak and very backward plants. Taken together, this evidence makes it scarcely doubtful that the yellow colour in these cases was pathological, and almost certainly due to exposure after ripening.