Video evaluation of ethylene sensitivity after anthesis in carnation (Dianthus caryophyllus L.) flowers
Video evaluation of ethylene sensitivity after anthesis in carnation (Dianthus caryophyllus L.) flowers
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DOI：
10.1016/s0304-4238(03)00094-3
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发表时间：
2004-02-06
影响因子：
4.3
通讯作者：
Shibata, M
中科院分区：
文献类型：
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作者：
Onozaki, T;Ikeda, H;Shibata, M
香石竹对乙烯敏感性的差异使用延时视频记录系统评估栽培品种。用1-20 μ l ~（-1）乙烯处理的“白色Sim”、“Nora”、“Chinera”和64-54系花的花瓣卷内时间的测定表明，10 μ l ~（-1）是用我们的视频系统进行敏感性评价的最佳浓度。利用该系统，我们发现10个品种和一个系之间的乙烯敏感性存在明显差异。‘Candy’、‘Pallas’、‘Chinera’和‘64-54’对乙烯的敏感性较低。品系64-54具有最长的乙烯响应时间（20.6小时至开始花瓣卷入）。视频监测是评价乙烯敏感性的一种简单、准确的方法。我们还利用该系统研究了康乃馨花后乙烯敏感性的变化。我们能够检测到乙烯反应性的变化，这是以前的方法无法检测到的。在模拟型香石竹品种测试（'白模拟'，'斯堪尼亚'，'U康恩模拟'，和'诺拉'），开花后乙烯敏感性下降，随着年龄的早期和后期切割的花。这些结果清楚地表明，乙烯敏感性的下降是由于生理年龄的增加。开花后的乙烯敏感性下降，随着年龄的增长，在正常的西姆型康乃馨以同样的方式在长瓶插寿命的变种，如“Sandrosa”。(C)2003 Elsevier B. V.保留所有权利。
Differences in ethylene sensitivity among carnation (Dianthus caryophyllus L.) cultivars were evaluated using a time-lapse video recording system. Measurement of time to petal inrolling of 'White Sim', 'Nora', 'Chinera', and line 64-54 flowers subjected to a range of 1-20 mul1(-1) ethylene showed that 10 mul1(-1) was the optimum concentration for sensitivity evaluation with our video system. With this system we found clear differences in ethylene sensitivity among 10 cultivars and one line. 'Candy', 'Pallas', 'Chinera', and line 64-54 had lower ethylene sensitivities than the other seven cultivars. Line 64-54 had the longest ethylene response time (20.6 h to start of petal inrolling). Video monitoring is a simple and accurate way of evaluating ethylene sensitivity. We have also used the system to study changes in the ethylene sensitivity of carnation flowers after anthesis. We were able to detect a shift in responsiveness to ethylene that was impossible to detect by previous methods. In the Sim-type carnation cultivars tested ('White Sim', 'Scania', 'U Conn Sim', and 'Nora'), ethylene sensitivity after anthesis decreased significantly with age in both early-cut and late-cut flowers. These results clearly showed that decline of ethylene sensitivity is caused by the increasing physiological age of flowers. Ethylene sensitivity after anthesis decreased with age in normal Sim-type carnations in the same way as in long-vase-life variants such as 'Sandrosa'. (C) 2003 Elsevier B.V. All rights reserved.