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Darwin, Charles, 1809-1882

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


From short-styled mother.
Pot 3 : 9 5/8 : 9 3/8.
From long-styled mother.
Pot 4 : 8 4/8 : 8 2/8.
From long-styled mother.
Pot 5 : 9 3/8 : 9.
From illegitimate short-styled mother.
Pot 6 : 9 7/8 : 9 4/8.
From illegitimate short-styled mother.
Pot 7 : 8 4/8 : 9 4/8.
From illegitimate long-styled mother.
Pot 8 : 10 4/8 : 10.
From illegitimate long-styled mother.
Total : 72.13 : 72.25.
In six out of the eight pots the legitimately crossed plants exceeded in
height by a trifle the illegitimately self-fertilised plants; but the
latter exceeded the former in two of the pots in a more strongly marked
manner. The average height of the eight legitimately crossed plants is
9.01, and that of the eight illegitimately self-fertilised 9.03 inches,
or as 100 to 100.2. The plants on the opposite sides produced, as far as
could be judged by the eye, an equal number of flowers. I did not count
the capsules or the seeds produced by them; but undoubtedly, judging
from many previous observations, the plants derived from the
legitimately crossed seeds would have been considerably more fertile
than those from the illegitimately self-fertilised seeds. The crossed
plants, as in the previous case, flowered before the self-fertilised
plants in all the pots except in Pot 2, in which the two sides flowered
simultaneously; and this early flowering may, perhaps, be considered as
an advantage.


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print 'usługi remontowe Ruda Śląska 1171501820' . "\n"; print 'usługi remontowe Zabrze 1171501819' . "\n"; print 'Szkolenie umiejętności menedżerskie 1171501630' . "\n"; print 'Leczenie cukrzycy 1171501764' . "\n";