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Darwin, Charles, 1809-1882

"Effects of Cross and Self Fertilisation in the Vegetable Kingdom"


Ipomoea purpurea--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 4th generation yielded seeds as: 94.
Ipomoea purpurea--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 5th generation yielded seeds as: 107.
Mimulus luteus--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 3rd generation yielded seeds as (by
weight): 65.
Mimulus luteus--same plants of the 3rd generation treated in the same
manner on the following year yielded seeds as (by weight): 34.
Mimulus luteus--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 4th generation yielded seeds as (by
weight): 40.
Viola tricolor--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 1st generation yielded seeds as: 69.
Dianthus caryophyllus--crossed and self-fertilised flowers on the
crossed and self-fertilised plants of the 1st generation yielded seeds
as: 65.
Dianthus caryophyllus--flowers on self-fertilised plants of the 3rd
generation crossed by intercrossed plants, and other flowers again
self-fertilised yielded seeds as: 97.
Dianthus caryophyllus--flowers on self-fertilised plants of the 3rd
generation crossed by a fresh stock, and other flowers again
self-fertilised yielded seeds as: 127.
Lathytus odoratus--crossed and self-fertilised flowers on the crossed
and self-fertilised plants of the 1st generation yielded seeds as: 65.


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