The effect of forcing temperature on peony shoot and flower development
The effect of forcing temperature on peony shoot and flower development
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DOI：
10.1016/j.scienta.2007.03.001
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发表时间：
2007-06-26
影响因子：
4.3
通讯作者：
Walton, E. F.
中科院分区：
文献类型：
--
作者：
Hall, A. J.;Catley, J. L.;Walton, E. F.
‘珊瑚日落’、‘Jules Elie先生’、‘Sarah Bernhardt’和‘Karl Rosenfeld’的预冷盆栽植物被放置在一系列受控温度范围内，以确定温度对新梢出苗和花发育时间的影响。对于所有品种来说，温度高达25摄氏度的温暖会导致更快的出苗和花发育。线性温度响应可以很好地描述从出芽到现蕾、从现蕾到开花的发育速度，但需要用曲线响应来描述出芽所需的时间。不同品种在出苗所需热量单位数上存在显著差异，发育最慢的品种‘Jules Elie’的出苗时间比发育最快的品种‘珊瑚日落’长50%。不同品种之间从出芽到开花的时间没有显著差异，尽管‘Karl Rosenfeld’的‘Split’阶段(花蕾充分开放，可以观察到花瓣的颜色)略早一些。(C)2007爱思唯尔B.V保留所有权利。
Pre-chilled potted plants of Paeonia `Coral Sunset', `Monsieur Jules Elie', `Sarah Bernhardt', and `Karl Rosenfeld' were placed in a range of controlled temperature regimes to ascertain the effect of temperature on the timing of shoot emergence and floral development. For all cultivars, warmer temperatures up to 25 degrees C lead to more rapid shoot emergence and flower development. Linear temperature responses adequately described the rate of development from shoot emergence to flower bud appearance, and from bud appearance to flower opening, but a curvilinear response was required to describe the time taken for shoots to emerge. There were significant differences between cultivars in the number of heat units required for shoot emergence, with the shoots of the slowest-developing cultivar, `Monsieur Jules Elie', taking 50% longer to emerge than those of the most rapid, `Coral Sunset'. No significant differences were found among cultivars in the time taken from shoot emergence to flower opening, although the `split' stage (when the bud opens sufficiently for petal colour to be observed) was slightly earlier in 'Karl Rosenfeld'. (c) 2007 Elsevier B.V All rights reserved.