Summary
In an old logbook by L. Broekema about his wheat breeding work notes were found on the segregation for the characters chaff colour, awning and pubescence of the glume, in the F2 of the cross Dikkop (white chaff-awnless-hairy glume) x Blé d'automne rouge barbu (red chaff-awned-smooth glume). The first variety was better known as Rough-chaffed Essex. The F2's were grown at Wageningen in 1887. Later Broekema calculated the ratios between the alternatives per character. It is impossible to conclude whether he did this before or after the rediscovery of the laws of inheritance in 1900.
Broekema was troubled with the classification of the intermediate types for colour of chaff and awnless or awnleted. This may have resulted in the observation that present χ2 give a significant ratio only for pubescence of the glume.
It is concluded that Broekema could not have used his figures for a possible rediscovery of the laws of inheritance, but that his knowledge of true-to-seedness for white chaff plants and for smooth glumed plants may have stimulated others to investigate this matter.
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Zeven, A.C. L. Broekema's segregation ratios of three wheat characters in 1887. Euphytica 18, 286–292 (1969). https://doi.org/10.1007/BF00035700
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DOI: https://doi.org/10.1007/BF00035700