rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Development and characterization of Texas bluegrass x Kentucky bluegrass interspecific hybrids for the Southern United States
  name:
    name part: Meeks, Meghyn Brianne
    role:
      role term: creator
    role:
      role term: author.
  name:
    name part: Chandra, Ambika
    role:
      role term: thesis advisor.
  name:
    name part: Wherley, Benjamin G.
    role:
      role term: thesis advisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2015
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Kentucky bluegrass (Poa pratensis L.) and tall fescue (Festuca arundinacea Schreb.) are commonly grown cool-season grasses in the United States for home lawns and various sports turf applications. However, environmental conditions such as prolonged periods of drought and heat as well as heavy shade often result in a loss of visual appeal, early dormancy, or death of the turf stand. Hybrid bluegrass (Poa spp.) cultivars derived from Texas bluegrass (P. arachnifera Torr.) x Kentucky bluegrass interspecific crosses may serve as viable alternatives for perennial turfgrass in the southern United States. Methods to aid in the breeding and selection of Texas x Kentucky bluegrasses for these environmental conditions would be useful. The goals of this research were to 1) develop new interspecific hybrid bluegrasses and optimize a seed germination technique, 2) use flow cytometry and molecular markers for the characterization of hybrid progeny, and 3) evaluate the growth response and performance of hybrid bluegrasses maintained in shade. In 2012 and 2013, controlled pollinations were made between different Poa species. Seed from these crosses were germinated through two different techniques that resulted in 61 new interspecific hybrids. A higher percentage of individuals (89%) were recovered through germination on nutrient agar medium than soil. In addition to these hybrids, 52 Texas x Kentucky hybrids created in 2001 were tested for three years in multiple locations across the southern states and the transition zone. Experimental hybrid TAES 5653, registered as DALBG 1201, was the superior genotype. Flow cytometry was used to estimate the DNA content of 19 Texas bluegrass genotypes, and four Texas x Kentucky bluegrass hybrids from two different pedigrees. Variability in DNA content suggested variability in the ploidy levels of Texas bluegrass. Texas x Kentucky bluegrass interspecific hybrids had an intermediate DNA content demonstrating flow cytometry can identify true hybri…
  note: by Meghyn Brianne Meeks.
  note: "Major Subject: Plant Breeding."
  note: Includes vita.
  note: Doctor of Philosophy Texas A & M University 2015 http://hdl.handle.net/1969.1/155246
  note: Includes bibliographical references.
  note: Text (Dissertation)
  subject:
    topic: Major Plant Breeding
  subject:
    topic: Poa pratensis
  subject:
    topic: Poa arachnifera
  subject:
    topic: bluegrass
  subject:
    topic: trinexapac-ethyl
  subject:
    topic: interspecific hybrids
  identifier: http://hdl.handle.net/1969.1/155246
  record info:
    record content source: TXA
    record creation date: 160211
    record change date: 20170928111609.0
    record identifier: in00003604415
    language of cataloging:
      language term: eng