RECORD: Darwin, C. R. n.d. Table 103 / Relative fertility of the crossed & self-fertilised plants. CUL-DAR76.B131. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Text prepared and edited by John van Wyhe. 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.  The volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).


B131

Table 103 (Parent Plants)

 Relative fertility of the parent plant when first crossed & self-fertile crossed & self-fertilised parent plants of the first & sometimes of the succeeding again crossed & again self-fertilised generations, as judged by the number of the fruit, or by the average number of the seeds per fruit, or by the number of the fruit & seeds both data combined. The fertility of the crossed plants being taken as 100.

Italics

 

Ipomaea purpurea, crossed to self-fert. plant of the first generation, by number of capsules —number of capsule can be nothing to do with seeding

as 100 to 69

― ―    (same plants)    by average number of seeds per capsule

—93

 

         (same plants)    by number of capsule & seeds

—64

 

― ―    "    "    of the third generation by number of capsules & seeds

—35

 

― ―    " var Hero "    of the ninth gen. by number of capsules

—26

 

Mimulus luteus    "p100    ".    second third gen. by weight of seed per capsule

—65

 

         "p102    " (same plants on following year) do

—34

 

― ―    "    "    fourth gen. by weight of seeds per capsule

—40

 

― ―    "Omit?    " the [illeg] sixth gen. with long-[illeg] by number of capsules

؟—147

 

Dianthus caryophyllus "    "    "    " first gen. by number of seed per capsule

—65

 

― ― self-fert. plants of the 3rd gen. crossed by the intercrossed to the plants again self-fertilised self-fert. plants of the same gen, & the fourth generation — by number of seed per capsule

—97

 

― ― self-fert. plants of the 3d gen. crossed by fresh stock to plants again self-fertilised self-fert plants of the same gen. & the fourth gen. — by number of seeds per capsules

—127

 

Tropaeolum minus crossed to self-fert plants of the first gen.,— by number of seeds per capsule

—64

 

Lathyrus odorata / This comes in Tab D.

Lobelia ramosa    "    "    "    "    by weight of seeds per capsule

—60

 

Petunia violacea    "    "    "    of the 2d. gen. by weight of seeds per capsule

—68

 

― ―    "    "    "    of the 4th. gen,    do .    do

—72

 

― ― intercrossed plants of the 4th gen. crossed by fresh stock to self-fert. plants of the same generation,— by weight of seed per capsule

—48

 

― ― intercrossed plants of the 4th gen. crossed by fresh stock to self-fert plants of the same gen. (so both lots consist of crossed plants) by weight of seeds per capsule

—66

 

Nicotiana tabacum, crossed to self-fert plant of the first gen.— by weight of seeds per capsule

—97

 

― ― self-fert. plants of the 2nd. gen. crossed by intercrossed plants to self-fert. plants of the same generation, 

about —110?

 

― ― self-fert. plants of the 2d gen— crossed by fresh stock to self-fert plants of the same gen.—

abut —110?

 

Canna warscewiz, crossed to self-fert. plants, the parent-plants & three succeeding generations all included, by number of seeds per capsule

—85


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

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