RECORD: Darwin, C. R. [1866].10.30-12.30. Sion House Cucumber. CUL-DAR78.190-191. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.


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Sion House Cucumber: fertilised by male flowers borne by on the same plant, & crossed by Woods Prolific C. — Fruit ripened under in Hot house. — Planted

(Oct 30th 4° P. m on sand in Hothouse

Nov. 1' 7° A.m. Both lots equally well & much germinated.)

Nov. 9th In small pot the crossed plants are just forming first, rough leaves & these are more advanced then the crossed plants.

((Nov 10th) almost one inch taller in stems of beneath Cotyledons.)

(Dec. 2d In Sand the crossed much tallest. In small pot, one of the crossed about 1 inch taller. Of plants transplanted into big pots, & perhaps injured, one crossed taller than pair; two uncrossed much taller than their pairs. —)

(Dec 16th In small pot the crossed have multitude of flowers expanded; uncrossed not one. — In 2 of the larger pots, which have as yet flowered, the crossed alone have flowered, though one of the crossed is shorter than its pair. —

Dec 30. In the two large pots, the crossed plant were dwarf & did not flower before uncrossed.)

Dec 30 In small pot, crossed plants at top of stake have produced many more flower & are 5 inches taller than uncrossed.

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(Cucumber)

A fruit, ripened in Frame & crossed by Woods' Prolific contained 102 seed, weighing 55.8 gr. —: a fruit by pollen from same plant contained 111 seed, & 102 of these weighed only 41.72 gr. & were to the eye much poorer.

A fruit ripened in Hothouse & crossed as above contained 100 seed, 43 of which weighed 19.24 gr.; a fruit fertilised by pollen from same plant contained only 71 seed, 43 of which weighed only 17.56 gr & therefore a little poorer & lighter & less numerous. —(Pure Woods' Prolific & Sion House have about same sized seed; judging from a few saved.)


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 29 May, 2023