The effect of two asepsis protocols, scion type (apical shoot tips and brachyblast
), gathering season (autumn and summer) and insertion position of the scion in the ortet (apical and basal) upon the micrograft establishment and consolidation of Pinus radiata D.
Shrubs; leaves alternate, more or less evenly distributed along the stem or clustered on brachyblasts
(short shoots) Pertya 22b.
They are succulent plants with reduced leaves, spines (making the scrub absolutely impenetrable), and brachyblasts
(short vegetative shoots with closely spaced leaves), in addition to the thickened stems-all adaptations to store water or reduce water losses.
From the Greek brachys, short, and klados, branch, with reference to the short shoots or brachyblasts.
Shrubs stout to cushion-like, with brachyblasts and macroblasts.
Leaves clustered on brachyblasts; subsessile; blades ovate-elliptic, palmately, pinnately to three-veined, margin entire, slightly pubescent on both surfaces.
Leaves alternate or clustered on brachyblasts; sessile to petiolate; blades commonly ovate, oblong, elliptic, lanceolate to linear, palmately, pinnately to three-veined, margin entire to lobed, subglabrous to pubescent beneath.
Herbs perennial, subshrubs or shrubs, sometimes cushion-like, frequently with brachyblasts and macroblasts.
Shrubs or little trees, erect or scandent, some branches modified in thorns to unarmed, stems with brachyblasts and macroblasts.
with different leaves: 0, absent; 1, present.
A simple example of these is brachyblasts or short shoots.
In this case brachyblasts form in the leaf axils, with some or all formation of the unit inflorescences taking place on these short shoots.