Some results of field experimentation with typica x nana (F1) hybrids 1. leaf production, flowering and yield

Abstract

The relative merits of the forms pumila, eburnea and regia of the variety nana (dwarf) as pollen parents for the production of typicaxnana(F1) hybrids are assessed. All three forms of dwarfs may be effectively used in the production of the above hybrid which is early bearing and which out yields the typica. However in view of the robustness of the form eburnea (dwarf ivory yellow), it is suggested that this form may be used for the mass production of typicaxnana(F1) hybrids for rapid commercial exploitation, supplimenting the current use of the form pumila (dwarf green) for this same purpose.