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: Effects of water supply on growth and allelopathic action of Dioscorea Hispida Dennst
  name:
    name part: Muhamad Azhar Abd Wahid
    role:
      role term: creator
    role:
      role term: author
  name:
    name part: Universiti Sultan Zainal Abidin
    name part: Graduate School
  type of resource: text
  origin info:
    place:
      place term: my
    date issued: 2014
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xvii, 129 leaves : ill. ; 29 cm.
  abstract: Effects of irrigation were studied in Dioscorea hispida Dennst. (ubi gadong) in Terengganu, Peninsular Malaysia, by quantifying selected aerial agro-morphology and underground agronomical parameters in automated irrigation system. The control treatment for the frequency of water supplied was 1) watering at one day interval (T1); 2) watering at every day (T2); 3) watering at two days interval (T3); 4) watering at five days interval (T4); and 5) watering at six days interval (T5). In this research, the results indicated that T2 showed no significant difference with T1 and T3 for all parameters. The phytochemical analysis confirmed that irrigation frequency gave effects to secondary metabolites of D. hispida, where T2 showed the highest green colour index value and lowest yellow colour index value at -5.82 + 0.40 and 30.99 + 1.23, respectively, whilst its aqueous extract was more acidic than other treatments at pH 5.36 + 0.003, respectively. For laboratory bioassay test, aqueous extracts of tubers from T1 and T4 irrigation frequency treatments of D. hispida showed high significant differences from distilled water (control) to stimulate radical length elongations of maize and mustard, respectively. Furthermore, field trial has confirmed that allelopathy of D. hispida tuber aqueous extract of T1 had significantly triggered the highest plant height, total biomass weight and number of kernel of maize than control (distilled water). On the other hand, T4 showed significantly highest weight of total biomass and number of leaf of mustard than distilled water (control). The optimum allelopathic effects of D. hispida that were showed by T1 (control) and T4 (irrigated at five days interval in a week), might be due to the optimum concentration of allelochemicals produced in D. hispida tuber that has triggered the highest radicle elongation of maize and mustard, respectively.
  table of contents: 1. Introduction -- 2. Literature review -- 3. Methodology -- 4. Results and discussion -- 5. Summary or conclusion
  note: Muhamad Azhar Abd Wahid
  note: Thesis (Degree of Master of Science) - Universiti Sultan Zainal Abidin, 2012
  note: Includes bibliographical references (leaves 107-117)
  subject:
    name:
      name part: Universiti Sultan Zainal Abidin
    topic: Graduate School
    genre: Dissertations
  subject:
    topic: Dissertations, Academic
  subject:
    topic: Water-supply, Agricultural
    topic: Management
  classification: S494.5 M84 2014
  record info:
    record content source: UniSZA
    record creation date: 140519
    record change date: 20200723093000.0
    record identifier: 0000086615