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Abstract
Effects induced by the exchange of embryos between normal grains and yellow-berries of « Cappelli » (Triticum durum Desf.). — Normal grains of « Cappelli » give seedlings, the shoots of which are longer than those coming from yellow-berries (Meletti e Onnis, 1961, a). The exchange of embryos between the two grain types shows the influence of endosperm on the seedling growth: the normal endosperm stimulates, while the yellow-berries endosperm depresses. The causes of this phenomenon are to research probably within the limits of the relationship, at biochemical level, between embryo end endosperm, with special regard to a likely different hormonic situation in normal grains and yellow-berries.