Effects of Cross and Self Fertilisation in the Vegetable Kingdom  by Charles Darwin
page 65 of 636 (10%)
page 65 of 636 (10%)
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			[THE DESCENDANTS OF THE SELF-FERTILISED PLANT, NAMED HERO, WHICH APPEARED IN THE SIXTH SELF-FERTILISED GENERATION. In the five generations before the sixth, the crossed plant of each pair was taller than its self-fertilised opponent; but in the sixth generation (Table 2/7, Pot 2) the Hero appeared, which after a long and dubious struggle conquered its crossed opponent, though by only half an inch. I was so much surprised at this fact, that I resolved to ascertain whether this plant would transmit its powers of growth to its seedlings. Several flowers on Hero were therefore fertilised with their own pollen, and the seedlings thus raised were put into competition with self-fertilised and intercrossed plants of the corresponding generation. The three lots of seedlings thus all belong to the seventh generation. Their relative heights are shown in Tables 2/14 and 2/15. TABLE 2/14. Ipomoea purpurea. Heights of Plants in inches: Column 1: Number (Name) of Pot. Column 2: Self-fertilised Plants of the Seventh Generation, Children of Hero. Column 3: Self-fertilised Plants of the Seventh Generation. Pot 1 : 74 : 89 4/8. Pot 1 : 60 : 61. Pot 1 : 55 2/8 : 49. |  | 


 
