but, as a general rule, it cannot be doubted that the continued selection of slight variations, either in the leaves, the flowers, or the fruit, will produce races differing from each other chiefly in these characters.
baina, oro har, ezin da dudarik egin oso aldakuntza arinen hautespen jarraikiak, hala hostoetan nola lore eta fruituetan, batez ere ezaugarri horiexetan elkarrengandik bereiziko diren arrazak sortuko dituela.