Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Charles Darwin
page 51 of 636 (08%)
page 51 of 636 (08%)
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Column 3: Self-fertilised Plants. Pot 1 : 84 4/8 : 74 6/8. Pot 1 : 84 6/8 : 84. Pot 1 : 76 2/8 : 55 4/8. Pot 2 : 84 4/8 : 65. Pot 2 : 90 : 51 2/8. Pot 2 : 82 2/8 : 80 4/8. Pot 3 : 83 : 67 6/8. Pot 3 : 86 : 60 2/8. Pot 4 : 84 2/8 : 75 2/8. Total : 755.50 : 614.25. Each of these nine crossed plants is higher than its opponent, though in one case only by three-quarters of an inch. Their average height is 83.94 inches, and that of the self-fertilised plants 68.25, or as 100 to 81. These plants, after growing to their full height, became very unhealthy and infested with aphides, just when the seeds were setting, so that many of the capsules failed, and nothing can be said on their relative fertility. CROSSED AND SELF-FERTILISED PLANTS OF THE EIGHTH GENERATION. As just stated, the plants of the last generation, from which the present ones were raised, were very unhealthy and their seeds of |
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