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Darwin, Charles, 1809-1882

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

. : .. : .. : .. : 3.
Mimulus luteus--offspring of plants self-fertilised for eight
generations and then crossed by a fresh stock, compared with the
offspring of a plant self-fertilised for eight generations, and then
intercrossed with another self-fertilised plant of the same generation:
28 : 21.62 : 27 : 12.20 : 56.
Mimulus luteus--offspring of plants self-fertilised for eight
generations and then crossed by a fresh stock, compared with the
offspring of a plant self-fertilised for eight generations, and then
intercrossed with another self-fertilised plant of the same generation,
in fertility:
.. : .. : .. : .. : 4.
Brassica oleracea--offspring of plants self-fertilised for two
generations and then crossed by a fresh stock, compared with plants of
the third self-fertilised generation, by weight:
6 : : 6 : : 22.
Iberis umbellata--offspring from English variety crossed by slightly
different Algerine variety, compared with the self-fertilised offspring
of the English variety:
30 : 17.34 : 29 : 15.51 : 89.
Iberis umbellata--offspring from English variety crossed by slightly
different Algerine variety, compared with the self-fertilised offspring
of the English variety, in fertility:
.. : .. : .. : .. : 75.
Eschscholtzia californica--offspring of a Brazilian stock crossed by an
English stock, compared with plants of the Brazilian stock of the second
self-fertilised generation:
19 : 45.


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