Persistent Link:
http://hdl.handle.net/10150/554341
Title:
Seed Coat Treatments Influence Germination of Taxodium mucronatum
Author:
St. Hilaire, Rolston
Affiliation:
Department of Agronomy and Horticulture, New Mexico State University
Publisher:
University of Arizona (Tucson, AZ)
Journal:
Desert Plants
Rights:
Copyright © Arizona Board of Regents. The University of Arizona.
Collection Information:
Desert Plants is published by The University of Arizona for the Boyce Thompson Southwestern Arboretum. For more information about this unique botanical journal, please email the College of Agriculture and Life Sciences Publications Office at pubs@cals.arizona.edu.
Issue Date:
20-May-2015
Abstract:
The range of Taxodium mucronatum Ten. (Mexican bald cypress) is declining rapidly, yet relatively little is known about the propagation of this valuable ornamental tree. The objective of this study was to determine whether seed coat treatments could enhance the germination of Mexican bald cypress. Seeds of Mexican bald cypress were collected from Las Cruces and the Gila National Forest, New Mexico. In one experiment, seed coats were knicked or left intact, then germinated on moist filter paper or flooded with water. In another experiment, seed coats from the Las Cruces provenance were treated with sulfuric acid, knicked, left intact, or removed (excised embryos) and germinated on moist filter paper. Knicked and moist seeds had a greater mean cumulative germination percentage (13.5 %) than intact and flooded seeds (4.2 %). Final germination percentage of the Las Cruces source was similar among knicked seeds, intact seeds, and excised embryos, but intact seeds took a longer time (15 days) to reach 50% of final germination percentage than did excised embryos (10 days) and knicked seeds (8 days). Seeds treated with sulfuric did not germinate. Results indicate seed coat pretreatments are needed to release physical dormancy and promote efficient germination of Mexican bald cypress.
Type:
Article
ISSN:
0734-3434

Full metadata record

DC FieldValue Language
dc.contributor.authorSt. Hilaire, Rolstonen
dc.date.accessioned2015-05-20T18:00:11Zen
dc.date.available2015-05-20T18:00:11Zen
dc.date.issued2015-05-20en
dc.identifier.issn0734-3434en
dc.identifier.urihttp://hdl.handle.net/10150/554341en
dc.description.abstractThe range of Taxodium mucronatum Ten. (Mexican bald cypress) is declining rapidly, yet relatively little is known about the propagation of this valuable ornamental tree. The objective of this study was to determine whether seed coat treatments could enhance the germination of Mexican bald cypress. Seeds of Mexican bald cypress were collected from Las Cruces and the Gila National Forest, New Mexico. In one experiment, seed coats were knicked or left intact, then germinated on moist filter paper or flooded with water. In another experiment, seed coats from the Las Cruces provenance were treated with sulfuric acid, knicked, left intact, or removed (excised embryos) and germinated on moist filter paper. Knicked and moist seeds had a greater mean cumulative germination percentage (13.5 %) than intact and flooded seeds (4.2 %). Final germination percentage of the Las Cruces source was similar among knicked seeds, intact seeds, and excised embryos, but intact seeds took a longer time (15 days) to reach 50% of final germination percentage than did excised embryos (10 days) and knicked seeds (8 days). Seeds treated with sulfuric did not germinate. Results indicate seed coat pretreatments are needed to release physical dormancy and promote efficient germination of Mexican bald cypress.en
dc.language.isoen_USen
dc.publisherUniversity of Arizona (Tucson, AZ)en
dc.rightsCopyright © Arizona Board of Regents. The University of Arizona.en_US
dc.sourceCALS Publications Archive. The University of Arizona.en_US
dc.titleSeed Coat Treatments Influence Germination of Taxodium mucronatumen_US
dc.typeArticleen
dc.contributor.departmentDepartment of Agronomy and Horticulture, New Mexico State Universityen
dc.identifier.journalDesert Plantsen
dc.description.collectioninformationDesert Plants is published by The University of Arizona for the Boyce Thompson Southwestern Arboretum. For more information about this unique botanical journal, please email the College of Agriculture and Life Sciences Publications Office at pubs@cals.arizona.edu.en_US
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