Rooting of liberica and excelsa cuttings in different plant growth regulators and commercial organic rooting mix

Date

8-2016

Degree

Bachelor of Science in Agriculture

Major Course

Major in Horticulture

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Calixto M. Protacio

Abstract

Effective propagation of hard-to-root species of coffee by nodal cuttings has not been developed. Effect of different auxins and auxin concentrations, plant growth regulators, and organic rooting mix on rooting ability of Liberica and Excelsa coffee cuttings was determined. Four to six cm long single-node cuttings with halved pair of leaves were prepared from the harvested young orthotropic shoots bearing 5-7 internodes. The cuttings were made to root either on beds with river sand as medium (experiment I) or in black plastic trays and small plastic pots with Folia Tropica® organic rooting mix as medium (experiment II). In experiment I, % survival was generally low and there is no significant differences among the auxin type, auxin concentrations, and coffee species (Liberica and Excelsa). Robusta coffee cuttings gave the best rooting response with 8-9 fold higher percentage rooting than the two species. Rooting was only observed in 40 ppm napthalene acetic acid (NAA) in Excelsa, and distilled water (control), 40 ppm NAA, and 400 ppm indole butyric acid in Liberica. In experiment II, cuttings treated with 40 ppm NAA gave the highest % survival (36.67) and callusing (20). On the other hand, cuttings treated with 200 ppm paclobutrazol gave lower % callusing and survival. Although not statistically analyzed, % survival was observed higher in cuttings planted in ?kulob? system with organic rooting mix as medium (0-40) than in those planted in mist bed with river sand as medium (0-16.67).

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2015 A3 /R36

Document Type

Thesis

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