SHOOT ELONGATION IN SCOTS PINE - DIURNAL-VARIATIONS AND RESPONSE TO TEMPERATURE
SHOOT ELONGATION IN SCOTS PINE - DIURNAL-VARIATIONS AND RESPONSE TO TEMPERATURE
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DOI：
10.1093/jxb/36.11.1760
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发表时间：
1985-01-01
影响因子：
6.9
通讯作者：
KANNINEN, M
中科院分区：
文献类型：
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作者：
KANNINEN, M
采用时间序列分析方法研究了樟子松（PinussylvestrisL.）幼苗及其对温度的反应。1979年6月，在12天的时间内，以2小时的间隔测量了3个5岁的苏格兰松幼苗的枝条伸长。在同一时间段内连续记录用热电偶测量的环境温度。测量在现场进行。时间序列分析的数据进行了估计的自相关和偏自相关函数。一个乘法的“季节”模型被应用到输入和输出系列，以“预测”数据集。序列互相关分析的预白化序列被用来确定的温度和生长速率之间的传递函数模型的结构。气温与枝梢伸长之间存在相位差。互相关函数在2h滞后值处达到峰值。温度对生长速率的影响可用一阶传递函数模型来描述。该模型的特征是时间常数为3.3小时，基础温度为6.3 ℃。C为芽伸长对温度的反应。
Time series analysis is used to study the diurnal variations in the rate of shoot elongation of Scots pine (Pinus sylvestris L.) seedlings, and its response to temperature. The shoot elongation of three 5-year-old Scots pine seedling was measured at 2 h intervals over a 12 d period in June 1979. Ambient temperature, measured with a thermocouple, was continuously recorded during the same period. The measurements were carried out in field. Time series analysis of the data was carried out by estimated auto-correlation and partial auto-correlation functions. A multiplicative ''seasonal'' model was applied to both the input and output series to ''prewhiten'' the data set. Serial cross-correlation analysis of prewhitened series was used to identify the structure of the transfer function model between temperature and growth rate. There was a phase shift between the air temperature and shoot extension. The cross-correlation function peaked at 2 h lag value. The influence of temperature on the growth rate was adequately described by a first-order transfer function model. The characteristic feature of model was a time constant of 3.3 h and a base temperature of 6.3.degree. C for the response of shoot elongation to temperature.