• Title/Summary/Keyword: 생장해석

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Studies on Physiological and Ecological Responses of Barley I. Growth Analysis of Barley Varieties under the Constant Temperature Condition (대맥의 물질생산에 관한 기초적연구 I. 일정한 온도환경조건하에서 생육한 대맥품종의 생육해석)

  • Chang-Hwan Cho;Wan-Sik Ahn
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.21 no.1
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    • pp.65-70
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    • 1976
  • To evaluate growth pattern of barley, dry matter productions of two barley varieties with different winter habits were compared under same temperature and day length conditions.

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Tree-Ring Growth Characteristics of Pinus thunbergii Parl. after Replanting on the Reclaimed Land from the Sea in Gwangyang Bay (광양만 임해매립지의 곰솔 이식 이후의 연륜생장 특성)

  • 김도균;박원규;서정욱
    • Korean Journal of Environment and Ecology
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    • v.16 no.1
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    • pp.1-9
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    • 2002
  • This study was carried out to examine the tree-ring growth characteristics of Pinus thunbergii Parl. after replanting on the reclaimed land from the sea in Kwangyang bay, The factors, mostly affecting the growths of Pinus thunbergii Parl. , were the replanting stress and drought. The growth reduction due to replanting occurred in the replanting year and following year, but that due to drought after 2-3 years of replanting. The growth recovery after replanting differed with soil condition. The sites showing fast recovery were the covered ground of improve soil, the ground of medium mounding, the top and the slope ground of big mounding sites. The filled ground of improve soil and the lower ground of big mounding sites showed retarded growths. The mean sensitivity(year-to-year variation) and the coefficient of variation(tree-to-tree variation in a certain year) in tree rings of Pinus thunbergii Parl. were higher in the poor soil sites than in the favourable soil ones. The physical characteristics of the soil, especially soil hardness, were the most crucial. The mean sensitivity and the coefficient of variation were also low in the salty soil environment.