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: Growth, carbon assimilation and biochemical changes of oil palm seedlings (Elaeis guineensis Jacq.) in climate change factors with potassium fertilisation
  title info:
    title: x
  name:
    name part: Tuan Syaripah Najihah binti Tuan Mohd Razali
    role:
      role term: creator
    role:
      role term: author
  name:
    name part: Universiti Putra Malaysia
    name part: School of Graduate Studies
  type of resource: text
  genre: Dissertations, Academic
  origin info:
    place:
      place term: my
    date issued: 2021
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xvi, 123 leaves : illustrations (some color) ; 30 cm.
  abstract: The demand for palm oil is expected to increase due to the increase in world population. However, climate change poses significant challenges to the production of oil palm as its output can be directly affected by abiotic stress, especially water and temperature stress. Potassium (K) is a crucial element in oil palm plantation as it is directly involved in the crop physiological processes. Thus this research was designed to determine how the use of the evapotranspiration replacement (ER) method and potassium fertiliser could be used to alleviate water and heat stress in oil palm seedlings. In tile first experiment, four irrigation regimes [100% ER (well -watered), 75% ER (moderate water stress), 50% ER (high water stress), and 25% ER (severe water stress)] were used to investigate the effect of different water stress regimes on the physiology of 4-montlls old oil palm seedlings. Results showed that severe water stress decreased vegetative plant growth, plant water status, leaf gas exchange, water use efficiency (WUE), and fv/fm (maximwn efficiency of photosystem II), but the malondialdehyde (MDA) and proline levels of oil palm seedlings were increased. In the second experiment, tluee levels of potassium rates (Kl, K2, and K3) with five times applications (170, 340, and 510 kg KCI ha "), (480 960, and 1440 kg KCI ha") (170,340, and 510 kg KCI ha-I), (960, 1920, and 2880 KCI kg ha "), and (960, 1920, and 2880 kg KCI ha-I) under three different levels of water stress (100% ER, 75% and 25% ER) were exposed on oil palm seedlings to identify the best rate of potassium fertiliser under water stress application and to understand the interaction between drought impacts and potassium application on oil palm seedlings. The result revealed that water stress hampered the growth of oil palm seedlings. As potassium fertiliser rates increased, no significant differences in the physiology of the seedlings were observed except for height, net photosynthesis, and intercellular C02 (C)…
  table of contents: 1. Introduction -- 2. Literatur review -- 3. General materials and methods -- 4. Effects of water stress on oil palm carbon assimilations, growth, and biochemical changes -- 5. Activity of the oil palm seedlings exposed to a different rate of potassium fertiliser under water stress condition -- 6. Growth analysis, leaf gas exchange and biochemical response of elaeis guineensis as affected by irrigation regimes and different sources of potassium fertilisers -- 7. The effect of high temperatures under under water stress condition with potassium supplementation on oil palm carbon assimilation, growth, and biochemical changes -- 8. General conclusion and recommendation for future studies
  note: Tuan Syaripah Najihah binti Tuan Mohd Razali
  note: x
  note: Theses (Degree of Doctor of Philosophy) - Universiti Putra Malaysia,2021
  note: Includes bibliographical references (pages 81-106)
  subject:
    name:
      name part: x
  subject:
    name:
      name part: Universiti Putra Malaysia
    topic: Dissertations
  subject:
    name:
      name part: Universiti Putra Malaysia
    topic: School of Graduate Studies
    genre: Dissertations
  subject:
    topic: Oil palm
  subject:
    geographic: on order
  classification: SB299 .T83 2021
  classification: x
  identifier: UniSZA
  record info:
    record content source: UniSZA
    record creation date: 210927
    record change date: 20220610093000.0
    record identifier: 0000100425