SEARCH
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Prev | Current Page 180 | Next

Darwin, Charles, 1809-1882

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


These seeds after germinating on sand were planted in pairs on the
opposite sides of five pots. The plants were trained up sticks, and
measured to the summits of their leafy stems--the flower-stems not being
included. We here have the result:--
TABLE 4/37. Reseda odorata (seedlings from a highly self-fertile plant).
Heights of plants to the summits of the leafy stems, flower-stems not
included, measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 1 : 20 7/8 : 22 4/8.
Pot 1 : 34 7/8 : 28 5/8.
Pot 1 : 26 6/8 : 23 2/8.
Pot 1 : 32 6/8 : 30 4/8.
Pot 2 : 34 3/8 : 28 5/8.
Pot 2 : 34 5/8 : 30 5/8.
Pot 2 : 11 6/8 : 23.
Pot 2 : 33 3/8 : 30 1/8.
Pot 3 : 17 7/8 : 4 4/8.
Pot 3 : 27 : 25.
Pot 3 : 30 1/8 : 26 3/8.
Pot 3 : 30 2/8 : 25 1/8.
Pot 4 : 21 5/8 : 22 6/8.
Pot 4 : 28 : 25 4/8.
Pot 4 : 32 5/8 : 15 1/8.
Pot 4 : 32 3/8 : 24 6/8.
Pot 5 : 21 : 11 6/8.
Pot 5 : 25 2/8 : 19 7/8.
Pot 5 : 26 6/8 : 10 4/8.
Total : 522.25 : 428.50.
The average height of the nineteen crossed plants is here 27.48, and
that of the nineteen self-fertilised 22.55 inches; or as 100 to 82. All
these plants were cut down in the early autumn and weighed: the crossed
weighed 11.5 ounces, and the self-fertilised 7.75 ounces, or as 100 to
67.


Pages:
168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192
The request /download_links.php was not found on this server.