RefDoc
Haut

Faire une nouvelle recherche
Make a new search
Lancer la recherche


Titre du document / Document title

Germination and Early Seedling Growth of Rare Zamia spp. in Organic and Inorganic Substrates: Advancing Ex Situ Conservation Horticulture

Auteur(s) / Author(s)

CALONJE Claudia (1) ; HUSBY Chad (1) ; CALONJE Michael (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Montgomery Botanical Center, 11901 Old Cutler Road, Miami, FL 33156, ETATS-UNIS

Résumé / Abstract

Improved propagation methods greatly benefit conservation of rare cycads. Appropriate substrate conditions, especially excellent root aeration, are crucial to successful cultivation of most cycads. Typical cycad substrates include substantial portions of organic materials that will decompose over time, reducing drainage and increasing water retention. In this study, two inorganic substrates, arcillite (Turface® MVP@) and coarse silica sand, and one mixed cycad substrate (with organic and inorganic components) were evaluated for germination and growth of three rare Zamia species: Z. fairchildiana L.D. Gómez, Z. cunaria Dressler & D.W. Stev., and Z. aff. portoricensis Urb. over a period of 14 months from seed sowing. Substrate type affected leaves per seedling and leaf length. These factors also varied by species as did taproot length and germination rate. There were also significant interactions between substrate and species for caudex diameter and leaf variables, likely reflecting ecological differences among the species, two of which are from rainforest habitats and one from dry forest. All three substrates performed adequately for germination, survival, and growth of Zamia. Turface® and possibly the silica sand likely require additional watering to improve their performance as cycad substrates.

Revue / Journal Title

HortScience    ISSN  0018-5345   CODEN HJHSAR 

Source / Source

2010, vol. 45, no4, pp. 679-683 [5 page(s) (article)] (1/4 p.)

Langue / Language

Anglais

Editeur / Publisher

American Society for Horticultural Science, Alexandria, VA, ETATS-UNIS  (1966) (Revue)

Mots-clés anglais / English Keywords

Mineral matter

;

Developmental stage

;

Spermatophyta

;

Gymnospermae

;

Aeration

;

Clay

;

Sand

;

Inorganic compound

;

Cycadales

;

Container growing

;

Horticulture

;

Conservation

;

Substrate

;

Organic compounds

;

Plant juvenile growth stage

;

Early phase

;

Growth

;

Germination

;

Mots-clés français / French Keywords

Matière minérale

;

Stade développement

;

Spermatophyta

;

Gymnospermae

;

Aération

;

Argile

;

Sable

;

Composé minéral

;

Cycadales

;

Culture en conteneur

;

Horticulture

;

Conservation

;

Substrat

;

Composé organique

;

Stade juvénile plante

;

Phase initiale

;

Croissance

;

Germination

;

Mots-clés espagnols / Spanish Keywords

Materia mineral

;

Grado desarrollo

;

Spermatophyta

;

Gymnospermae

;

Aeración

;

Arcilla

;

Arena

;

Compuesto inorgánico

;

Cycadales

;

Cultivo en contenedor

;

Horticultura

;

Conservación

;

Substrato

;

Compuesto orgánico

;

Estado juvenil planta

;

Fase inicial

;

Crecimiento

;

Germinación

;

Mots-clés d'auteur / Author Keywords

container cultivation

;

sand

;

arcillite

;

calcined clay

;

Turface® MVP®

;

aeration

;

cycads

;

inert substrates

;

Localisation / Location

INIST-CNRS, Cote INIST : 13300, 35400018972944.0300

Nº notice refdoc (ud4) : 22700747



Faire une nouvelle recherche
Make a new search
Lancer la recherche
Bas