The effects of temperature on the flower size of pansy (Viola x wittrockiana Gams.)
The effects of temperature on the flower size of pansy (Viola x wittrockiana Gams.)
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温度对三色堇 (Viola x wittrockiana Gams.) 花朵大小的影响
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
D. May
中科院分区：
文献类型：
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作者：
S. Pearson;A. Parker;S. Adams;P. Hadley;D. May
在温室和控制环境条件下，通过两个实验研究了温度对三色紫罗兰花朵大小的影响。温室条件下，在9~31℃温度范围内，花朵大小(Mm2)随温度升高呈线性下降(R2=0.72)。转移实验表明，花朵大小的减小与温度升高的幅度和暴露时间成正比。因此，长期暴露在较高的温度下会导致花朵逐渐变小。可见蕾期之前的温度对最终花朵大小的影响不大，但随后的所有阶段对温度的升高都同样敏感。因此，无论花的发育阶段如何，一段时间的高温都有相同的影响。最终花大小与温度的比例减小可能归因于花发育持续时间随温度的变化。建立的模型表明，最终的花朵大小可以准确地预测出来。
SummaryThe effects of temperature on the flower size of pansy were investigated in two experiments under both glasshouse and controlled environment conditions. Under glasshouse conditions, flower size (mm2) decreased linearly with increasing temperature between 9 and 31°C (r2 = 0.72). A transfer experiment showed that the decrease in flower size was proportional to the magnitude of the increase in temperature and to the duration of exposure. Thus, prolonged exposures to higher temperatures led to progressively smaller flowers. Temperature prior to visible bud stage had little effect on final flower size, but all subsequent stages were equally sensitive to increased temperatures. Thus, a period of high temperature had the same affect regardless of the stage of floral development. A proportion of the reduction in final flower size to temperature could be attributed to changes in the duration of flower development with temperature. A model was developed which showed that final flower size could be accurately...