Effects of Cross and Self Fertilisation in the Vegetable Kingdom  by Charles Darwin
page 68 of 636 (10%)
page 68 of 636 (10%)
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|  | Pot 2 : 96 : 85. Pot 2 : 77 2/8 : 93. Pot 3 : 73 : 86 2/8. Pot 3 : 66 : 82 2/8. Pot 3 : 84 4/8 : 70 6/8. Pot 4 : 88 1/8 : 66 3/8. Pot 4 : 84 : 15 4/8. Pot 4 : 36 2/8 : 38. Pot 4 : 74 : 78 3/8. Pot 5 : 90 1/8 : 82 6/8. Pot 5 : 90 5/8 : 83 6/8. Total : 1037.00 : 973.16. The average height of the thirteen self-fertilised grandchildren of Hero is 79.76 inches, and that of the grandchildren from a cross between the self-fertilised children is 74.85; or as 100 to 94. But in Pot 4 one of the crossed plants grew only to a height of 15 1/2 inches; and if this plant and its opponent are struck out, as would be the fairest plan, the average height of the crossed plants exceeds only by a fraction of an inch that of the self-fertilised plants. It is therefore clear that a cross between the self-fertilised children of Hero did not produce any beneficial effect worth notice; and it is very doubtful whether this negative result can be attributed merely to the fact of brothers and sisters having been united, for the ordinary intercrossed plants of the several successive generations must often have been derived from the |  | 


 
