Resíduos agroindustrial da palmeira real da Austrália Archontophoenix alexandrae H. Wendl. & Drude, como componente para substratos de espécies ornamentais

by Filho, Eduardo Adenesky

Abstract (Summary)
The palm Brazilian agroindustry is responsible for the biggest world-wide production of canned palm, generating as consequence tons of residues in the environment. The palmextraction process is made by cutting the palm, using the internal sheath for food and leaving the stem, leaflets and external and internal sheaths for discarding which generatesenvironmental liabilities. In this context, the sheath residues, stem and leaflets that are generate in the palm agroindustry of the king palm, had been used in orchids culture of theDendrobium phalaenopsis and Phalaenopsis aphrodite. The composition of residues of the substrate that induced better resulted were B1 (400 ml of sheath, 150 ml of leaflets and250 ml of stem) and B2 (400 ml of sheath, 150 ml of leaflets and 100 ml of stem) because they had physical properties such as dry density with a 71 kg.m-3 value for both, 0,68 oftotal porosity and 0,69 m3.m-3, available water of 0,03 and 0,04 m3.m-3, respectively and, chemical properties such as total tenor of soluble salt of 0,77 kg.m-3 for both substrate and pH of 6,3 and 6,62, considered within the ideal range for substratum composition in the culture of ornamental plants in vase. Such characteristics lead to the height of the shoots toformation of the biggest development of the aerial part, root system and production of total mass of the two orchids. Compositions DB1 (400 ml of sheath, 150 ml of leaflets and 250ml of stem) and DB2 (400 ml of sheath, 150 ml of leaflets and 100 ml of stem), provided superior values in increment in the height of the biggest pseudo bulb to D. phalaenopsis,which values were 5,4 and 4,3 cm, length of leves of 2,67 and 2,49 cm, number buds of 1,4 and 1 and total dry mass of 15,37 and 11,60 g, respectively, when compared with thesubstratum composed by Xaxim and by the other compositions of residues. For P. aphrodite species, the residues compositions PB1 and PB2 had respectively induced the biggest heights of the aerial part which values were 1,64 and 1,68 cm and length of roots were 10,11 and 8,49 cm. Whereas composition PE3 provided the biggest diameter ofpseudo bulb, whose value was 5,68cm and 10,11g. of total dry mass. Therefore, Archontophoenix residues (king palm), had shown great potential to be used as componentof substrate used in the culture of specie D. phalaenopsis, proving to be also an alternative in the substitution of Xaxim, the most used substratum in the culture of epiphyte orchids
This document abstract is also available in Portuguese.
Bibliographical Information:

Advisor:Lorena Benathar Ballod Tavares; Eliséo Soprano; Lauri Amândio Schorn; Tatiele Anete Bergamo Fenilli; Rosete Pescador

School:Universidade Regional de Blumenau

School Location:Brazil

Source Type:Master's Thesis

Keywords:alternative substrata


Date of Publication:03/30/2007

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