Growth induction of orthotropic buds on icatu coffee

Abstract

The objective of this work was to evaluate the growth induction on 'Icatu-coffee' buds. Rods cut at 5 cm-long, with only one node and come from orthotropic branchs were placed in a recipient containing vermiculit under intermitent water sprinkling, with a completely randomized blocks design. The treatments constituted of 0, 250, 500 and 1,000 mg/l of 6-benzylaminopurine (BAP) and incisions were made under or above the plagiotropic branchs insertion. The best sproutings of orthotropic buds were registered at 1,000 mg/l BAP and the best proliferation resulted of the incision realized under the plagiotropic branchs insertions. There were no differences between red 'Icatu' and yellow 'Icatu-coffee'. But yellow 'Icatu-coffee' shootings showed better survival rates. Enlargement and proliferation of shoots showed independent behaviour.