Seed Germination Variation among Crop Years from a Pinus sylvestris Clonal Seed Orchard
作者: Melusi Rampart
作者单位: 1Botswana University of Agriculture and Natural Resources, Faculty of Natural Resources, Private Bag 0027, Gaborone, Botswana and School of Environment, Natural Resources and Geography, Bangor University, Bangor, LL57 2UW, Gwynedd, UK.
刊名: Asian Journal of Research in Agriculture and Forestry, 2019, pp.1-14
来源数据库: SCIENCEDOMAIN international
DOI: 10.9734/ajraf/2019/v3i130031
关键词: Seed germinationPinus sylvestrisThermal timeChilling unitsDormancy
原始语种摘要: Maternal effects were assessed by germinating seeds sourced over multiple years from the same cloned mother trees, comparing germination capacity and rate between crop years. The relationships between climatic variables, seed characteristics and germination capacity were determined, and thermal time parameters were used to predict seed dormancy release and germination under the climatic conditions in the year after seed collection. There were significant differences in seed weight (P < 0.05), seed length and embryo occupancy (both P < 0.001) among crop years. Temperature during the seed development period explained 70% of the variation in seed weight and 63% of the variation in embryo occupancy. Germination capacity was significantly (P <0.001) different among crop years, among...
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关键词翻译
关键词翻译
  • among 在当中
  • germination 发芽
  • chilling 冷硬
  • germinating 发芽
  • significantly 较大地
  • dormancy 休眠
  • conditions 条件式
  • occupancy 占有
  • eight 
  • variation 变异