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Darwin, Charles, 1809-1882

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


These seeds were also conspicuously larger than those from the cross
between two individuals of the same red variety, and germinated much
more freely. The flowers on most of the plants produced by the cross
between the two-coloured varieties (of which several were raised), took
after their mother, and were red-coloured. But on two of the plants the
flowers were plainly stained with blue, and to such a degree in one case
as to be almost intermediate in tint.
The crossed seeds of the two foregoing kinds and the self-fertilised
were sown on the opposite sides of two large pots, and the seedlings
were measured when fully grown, as shown in Tables 6/92a and 6/92b.
TABLE 6/92a. Anagallis collina: Red variety crossed by a distinct plant
of the red variety, and red variety self-fertilised.
Heights of plants measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 1 : 23 4/8 : 15 4/8.
Pot 1 : 21 : 15 4/8.
Pot 1 : 17 2/8 : 14.
Total : 61.75 : 45.00.
TABLE 6/92b. Anagallis collina: Red variety crossed by blue variety, and
red variety self-fertilised.
Heights of plants measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 2 : 30 4/8 : 24 4/8.
Pot 2 : 27 3/8 : 18 4/8.
Pot 2 : 25 : 11 6/8.


Pages:
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print 'domy drewniane 1171501864' . "\n"; print 'domy z drewna 1171501863' . "\n"; print 'energetyka wiatrowa 1171501719' . "\n"; print 'Dochodzenie roszczeń 1171501934' . "\n"; print 'masowa wysyłka sms 1171501829' . "\n";