Time-resolved ultra-weak photon emission as germination performance indicator in single seedlings.
Time-resolved ultra-weak photon emission as germination performance indicator in single seedlings.
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DOI：
10.1016/j.jpap.2020.100001
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发表时间：
2020-03-01
影响因子：
--
通讯作者：
Robert, Daniel
中科院分区：
文献类型：
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作者：
Gallep, Cristiano de Mello;Robert, Daniel
植物幼苗在生长过程中会发出非常少量的光，即所谓的超弱光子发射(UPE)。以每秒数十或数百个光子计数，这种UPE辐射已经在一起生长的10到1000棵幼苗的组上进行了测量。在这里，我们开始测量单个萌发种子的UPE，从而实现对单个种子的评估。在这里，UPE是在低噪声实验室中测量的，使长期、稳定和可重复的测试条件成为可能。UPE记录实际上可以在绿豆、玉米和小麦的单一萌发幼苗上进行，也可以与绿豆的10粒种子样本进行比较。这些数据揭示了苗木和植物物种之间的差异。幼苗的发育-根和叶的总长度-与UPE数据之间的关系是以总光子计数作为苗木生长的时间函数的形式给出的。这些数据被线性内插，用于绿豆试验时与UPE斜率(R2~0.834)的关系。在单株绿豆幼苗(R2)上进行的测试中，UPE与生长相关性较弱
As they grow, plant seedlings emit very small amount of light, the so-called ultraweak photon emissions (UPE). Numbering tens or hundreds of photons per second, this UPE radiation has been measured on groups of 10 to 1000s of seedlings growing together. Here, we set out to measure UPE on single germinating seeds, enabling the assessment of individual seeds. Here, UPE were measured in low-noise laboratories, enabling long-term, stable and reproduceable testing conditions. UPE recordings could in effect be performed on single germinating seedlings of mung beans, corn and wheat, also comparing measurements to 10-seed sample of mung beans. The data reveal differences between seedlings and plant species. The relation between the seedling's development - total length of roots plus leaflet - and the UPE data is presented in terms of the total photon counts as a function of seedling growth in time. These data were fitted in linear interpolation, for the tests with mung beans when related to the UPE slope (R2 ~0.834). UPE versus growth correlation was weaker for tests conducted with single mung seedlings (R2