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Darwin, Charles, 1809-1882

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


Lobelia ramosa--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 1st generation yielded seeds as (by
weight): 60.
Petunia violacea--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 1st generation yielded seeds as (by
weight): 68.
Petunia violacea--crossed and self-fertilised flowers on the crossed and
self-fertilised plants of the 4th generation yielded seeds as (by
weight): 72.
Petunia violacea--flowers on self-fertilised plants of the 4th
generation crossed by a fresh stock, and other flowers again
self-fertilised yielded seeds as (by weight): 48.
Nicotiana tabacum--crossed and self-fertilised flowers on the crossed
and self-fertilised plants of the 1st generation yielded seeds as (by
weight): 97.
Nicotiana tabacum--flowers on self-fertilised plants of the 2nd
generation crossed by intercrossed plants, and other flowers again
self-fertilised yielded seeds as (by estimation): 110.
Nicotiana tabacum--flowers on self-fertilised plants of the 3rd
generation crossed by a fresh stock, and other flowers again
self-fertilised yielded seeds as (by estimation): 110.
Anagallis collina--flowers on red variety crossed by a blue variety, and
other flowers on the red variety self-fertilised yielded seeds as: 48.
Canna warscewiczi--crossed and self-fertilised flowers on the crossed
and self-fertilised plants of three generations taken together yielded
seeds as: 85.


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