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Darwin, Charles, 1809-1882

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


Pot 5 : 53 : 30.
Crowded plants.
Total : 701.88 : 453.50.
The fifteen crossed plants average 46.79, and the fourteen (one having
died) self-fertilised plants 32.39 inches in height; or as 100 to 69. So
that the crossed plants in this generation had recovered their wonted
superiority over the self-fertilised plants; though the parents of the
latter in Pot 1, Table 6/79, were a little taller than their crossed
opponents.
CROSSED AND SELF-FERTILISED PLANTS OF THE FOURTH GENERATION (RAISED FROM
THE PLANTS IN POT 4, TABLE 6/79).
Two similar lots of seeds, obtained from the plants in Pot 4 in Table
6/79, in which the single crossed plant was at first shorter, but
ultimately much taller than its self-fertilised opponent, were treated
in every way like their brethren of the same generation in the last
experiment. We have in Table 6/81 the measurements of the present
plants. Although the crossed plants greatly exceeded in height the
self-fertilised; yet in three out of the five pots a self-fertilised
plant flowered before any one of the crossed; in a fourth pot
simultaneously; and in a fifth (namely Pot 2) a crossed plant flowered
first.
TABLE 6/81. Petunia violacea (fourth generation; raised from plants of
the third generation in Pot 4, Table 6/79).
Heights of plants measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.


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print 'Prawo jazdy Dąbrowa Górnicza 1171501733' . "\n"; print 'Nauka jazdy Dąbrowa Górnicza 1171501732' . "\n"; print 'Przeprowadzki firm 1171501945' . "\n"; print 'Ducati 1171501802' . "\n"; print 'szkolenie trenerskie 1171501626' . "\n";