Moreover, whenever complicated experiments are in progress, so careful an observer as Gartner would have castrated his hybrids, and this would have insured in each generation a cross with pollen from a distinct flower, either from the same plant or from another plant of the same hybrid nature. And thus, the strange fact of an increase of fertility in the successive generations of ARTIFICIALLY FERTILISED hybrids, in contrast with those spontaneously self-fertilised, may, as I believe, be accounted for by too close interbreeding having been avoided. Now let us turn to the results arrived at by a third most experienced hybridiser, namely, the Hon.
Gainera, esperimentu korapilatsuak egitean, Gärtner bezalako behatzaile zehatz batek irendu egin behar izan zituen bere hibridoak, eta honek belaunaldi bakoitzean landare beraren edo izaera hibrido bereko landareren baten beste lore baten polenaz gurutzatzea segurtatuko zuen. Eta horrela, artifizialki ernalaraziriko hibridoek, berez autoernalduekin konparaturik, hurrengo belaunaldietan ugalkortasuna gehitzea den egitate arraroa, espezie hurbilegien gurutzaketak ekidin izanak azal lezake, nik uste.