Khattak Abdul Mateen, Pearson Simon
Department of Horticulture, NWFP Agricultural University, Peshawar, Pakistan.
J Zhejiang Univ Sci B. 2005 Feb;6(2):119-24. doi: 10.1631/jzus.2005.B0119.
An experiment was carried out to examine the effects of light quality on the growth and development of antirrhinum under three different temperatures 19 degrees C, 24 degrees C and 27 degrees C in glasshouses. Five different colour filters (i.e. 'Red absorbing', 'Blue absorbing', 'Blue and Red absorbing' and two 'partially Blue absorbing' materials) were tested, with one clear polythene as a control. Plant height, internode length and leaf area were significantly affected by the spectral filters as well as the temperature. Analysis of color filter's effect on presumed photoreceptors to exist indicated that antirrhinum plant height was regulated by the action of a blue acting photoreceptor (BAP) and not the phytochrome. There was no evidence for an effect of phytochrome or BAP on time to flowering, however, increasing temperature levels effectively decreased the time to flowering. To predict the effects of different spectral qualities and temperature, simple models were created from data on plant height, internode length and time to flowering. These models were then applied to simulate the potential benefits of spectral filters and temperature in manipulation of growth control and flowering in antirrhinum.
在温室中进行了一项实验，以研究在19摄氏度、24摄氏度和27摄氏度这三种不同温度下，光质对金鱼草生长发育的影响。测试了五种不同的滤光片（即“吸收红光”、“吸收蓝光”、“吸收蓝光和红光”以及两种“部分吸收蓝光”材料），并以一片透明聚乙烯薄膜作为对照。光谱滤光片以及温度对株高、节间长度和叶面积均有显著影响。对滤光片对假定存在的光感受器的作用分析表明，金鱼草的株高受蓝光作用光感受器（BAP）的调控，而非光敏色素。没有证据表明光敏色素或BAP对开花时间有影响，然而，温度升高有效地缩短了开花时间。为了预测不同光谱质量和温度的影响，根据株高、节间长度和开花时间的数据创建了简单模型。然后应用这些模型来模拟光谱滤光片和温度在控制金鱼草生长和开花方面的潜在益处。
