Root and shoot responses of Taxodium distichum seedlings subjected to saline flooding

Ken W. Krauss, Jim L. Chambers, James A Allen, Brian P. Luse, Antoinette S. DeBosier

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Variation among progeny of five half-sib family collections of baldcypress (Taxodium distichum) from three freshwater and two brackish-water seed sources subjected to saline flooding was evaluated Mini-rhizotrons (slant tubes) were used to monitor root elongation for a period of 99 days. Salinity level produced significant effects across all baldcypress half-sib families, with root elongation averaging 1594.0, 956.8, and 382.1 mm, respectively, for the 0, 4, and 6 g l-1 treatments. Combined mean root elongation for families from brackish-water seed sources was greater (1236.7 mm) than for families from freshwater seed sources (794.6 mm). Considerable variation occurred at the highest salinity treatment, however, with one freshwater family maintaining more than 28% more root growth than the average of the two brackish-water collections. Hence, results indicate that short-term evaluation of root elongation at these salinity concentrations may not be a reliable method for salt tolerance screening of baldcypress. Species-level effects for height and diameter, which were measured at day 62, were significant for both parameters. Height increment in the control (7.4 cm), for example, was approximately five times greater than height increment in the 6 g l-1 salinity treatment (1.5 cm). Family-level variation was significant only for diameter, which had an incremental range of 0.2 to 1.5 mm across all salinity levels.

Original languageEnglish (US)
Pages (from-to)15-23
Number of pages9
JournalEnvironmental and Experimental Botany
Volume41
Issue number1
DOIs
StatePublished - Feb 1999
Externally publishedYes

Fingerprint

Taxodium distichum
root growth
flooding
shoot
seedling
salinity
shoots
brackish water
seedlings
seed
seeds
salt tolerance
family
screening
tolerance
monitoring
salt

Keywords

  • Baldcypress
  • Intraspecific variation
  • Salinity
  • Salt tolerance
  • Selection
  • Wetlands

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science
  • Environmental Science(all)

Cite this

Root and shoot responses of Taxodium distichum seedlings subjected to saline flooding. / Krauss, Ken W.; Chambers, Jim L.; Allen, James A; Luse, Brian P.; DeBosier, Antoinette S.

In: Environmental and Experimental Botany, Vol. 41, No. 1, 02.1999, p. 15-23.

Research output: Contribution to journalArticle

Krauss, Ken W. ; Chambers, Jim L. ; Allen, James A ; Luse, Brian P. ; DeBosier, Antoinette S. / Root and shoot responses of Taxodium distichum seedlings subjected to saline flooding. In: Environmental and Experimental Botany. 1999 ; Vol. 41, No. 1. pp. 15-23.
@article{5f8a34b74d284297bd083f2c374bd222,
title = "Root and shoot responses of Taxodium distichum seedlings subjected to saline flooding",
abstract = "Variation among progeny of five half-sib family collections of baldcypress (Taxodium distichum) from three freshwater and two brackish-water seed sources subjected to saline flooding was evaluated Mini-rhizotrons (slant tubes) were used to monitor root elongation for a period of 99 days. Salinity level produced significant effects across all baldcypress half-sib families, with root elongation averaging 1594.0, 956.8, and 382.1 mm, respectively, for the 0, 4, and 6 g l-1 treatments. Combined mean root elongation for families from brackish-water seed sources was greater (1236.7 mm) than for families from freshwater seed sources (794.6 mm). Considerable variation occurred at the highest salinity treatment, however, with one freshwater family maintaining more than 28{\%} more root growth than the average of the two brackish-water collections. Hence, results indicate that short-term evaluation of root elongation at these salinity concentrations may not be a reliable method for salt tolerance screening of baldcypress. Species-level effects for height and diameter, which were measured at day 62, were significant for both parameters. Height increment in the control (7.4 cm), for example, was approximately five times greater than height increment in the 6 g l-1 salinity treatment (1.5 cm). Family-level variation was significant only for diameter, which had an incremental range of 0.2 to 1.5 mm across all salinity levels.",
keywords = "Baldcypress, Intraspecific variation, Salinity, Salt tolerance, Selection, Wetlands",
author = "Krauss, {Ken W.} and Chambers, {Jim L.} and Allen, {James A} and Luse, {Brian P.} and DeBosier, {Antoinette S.}",
year = "1999",
month = "2",
doi = "10.1016/S0098-8472(98)00051-3",
language = "English (US)",
volume = "41",
pages = "15--23",
journal = "Environmental and Experimental Botany",
issn = "0098-8472",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Root and shoot responses of Taxodium distichum seedlings subjected to saline flooding

AU - Krauss, Ken W.

AU - Chambers, Jim L.

AU - Allen, James A

AU - Luse, Brian P.

AU - DeBosier, Antoinette S.

PY - 1999/2

Y1 - 1999/2

N2 - Variation among progeny of five half-sib family collections of baldcypress (Taxodium distichum) from three freshwater and two brackish-water seed sources subjected to saline flooding was evaluated Mini-rhizotrons (slant tubes) were used to monitor root elongation for a period of 99 days. Salinity level produced significant effects across all baldcypress half-sib families, with root elongation averaging 1594.0, 956.8, and 382.1 mm, respectively, for the 0, 4, and 6 g l-1 treatments. Combined mean root elongation for families from brackish-water seed sources was greater (1236.7 mm) than for families from freshwater seed sources (794.6 mm). Considerable variation occurred at the highest salinity treatment, however, with one freshwater family maintaining more than 28% more root growth than the average of the two brackish-water collections. Hence, results indicate that short-term evaluation of root elongation at these salinity concentrations may not be a reliable method for salt tolerance screening of baldcypress. Species-level effects for height and diameter, which were measured at day 62, were significant for both parameters. Height increment in the control (7.4 cm), for example, was approximately five times greater than height increment in the 6 g l-1 salinity treatment (1.5 cm). Family-level variation was significant only for diameter, which had an incremental range of 0.2 to 1.5 mm across all salinity levels.

AB - Variation among progeny of five half-sib family collections of baldcypress (Taxodium distichum) from three freshwater and two brackish-water seed sources subjected to saline flooding was evaluated Mini-rhizotrons (slant tubes) were used to monitor root elongation for a period of 99 days. Salinity level produced significant effects across all baldcypress half-sib families, with root elongation averaging 1594.0, 956.8, and 382.1 mm, respectively, for the 0, 4, and 6 g l-1 treatments. Combined mean root elongation for families from brackish-water seed sources was greater (1236.7 mm) than for families from freshwater seed sources (794.6 mm). Considerable variation occurred at the highest salinity treatment, however, with one freshwater family maintaining more than 28% more root growth than the average of the two brackish-water collections. Hence, results indicate that short-term evaluation of root elongation at these salinity concentrations may not be a reliable method for salt tolerance screening of baldcypress. Species-level effects for height and diameter, which were measured at day 62, were significant for both parameters. Height increment in the control (7.4 cm), for example, was approximately five times greater than height increment in the 6 g l-1 salinity treatment (1.5 cm). Family-level variation was significant only for diameter, which had an incremental range of 0.2 to 1.5 mm across all salinity levels.

KW - Baldcypress

KW - Intraspecific variation

KW - Salinity

KW - Salt tolerance

KW - Selection

KW - Wetlands

UR - http://www.scopus.com/inward/record.url?scp=0032996806&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032996806&partnerID=8YFLogxK

U2 - 10.1016/S0098-8472(98)00051-3

DO - 10.1016/S0098-8472(98)00051-3

M3 - Article

AN - SCOPUS:0032996806

VL - 41

SP - 15

EP - 23

JO - Environmental and Experimental Botany

JF - Environmental and Experimental Botany

SN - 0098-8472

IS - 1

ER -