Scientific Reports includes a TPU article in top 100 publications

The article Improving Color Rendering of LED Lighting for the Growth of Lettuce by the scientists from Tomsk Polytechnic University was included in the top 100 research studies about plants, published in the highly rated journal Scientific Reports (IF 4.259, Q1) in 2017.

Scientific Reports is one the scientific journals published by the international publishing company Nature Publishing Group (NPG). The main and most famous journal released by NPG is Nature. A series of Nature journals (Nature Physics, Nature Photonics and others), a series of Nature Reviews journals, including a series of biological journals and a series of journals devoted to clinical practice in various sections of medicine, a number of academic journals, and popular science magazines also belong to the company.

According to the editors of Scientific Reports, in 2017 the journal published nearly 700 research articles devoted to plant science. The top 100 articles include research outcomes obtained by scientists from leading universities across the globe.

‘It is an extraordinary achievement to be positioned in the top 100 most highly read articles– your science is of real value to the research community. You can access all the highly rated articles within this category by visiting our Top 100 in plant science page’, says the report.

The authors of the article are Director of TPU School of Advanced Manufacturing Technologies, Ass.Prof. Alexey Yakovlev from Division of Materials Science and Assistant Vitaliy Vaganov from Division of Materials Science. The research was jointly conducted with scientists from Chongqing University of Arts and Sciences (China) and Southwest University (China).

The scientists propose a novel method for evaluating and searching for optimized LED lighting for plant growth using lettuce cultivation.

‘Light plays a vital role in the growth and development of plants. We proposed improving color rendering of LED lighting to accelerate lettuce growth through white lighting with high color rendering. Seven spectral LED lights were adopted to irradiate the lettuces under 150 μmol·m−2·s−1 for a 16 hd−1 photoperiod for the irradiation period of 16 hours per day,’ the authors explain.

The leaf area and number profiles, plant biomass, and photosynthetic rate under the as-prepared LED light treatments were investigated.

‘We assumed the absorption spectrum of fresh leaf to be the emission spectrum of ideal light and then evaluated the “color rendering” of as-prepared LED lights against the Pearson product-moment correlation coefficient and CIE chromaticity coordinates. Under the irradiation of red-yellow-blue light with high correlation coefficient of 0.587, the dry weights and leaf growth rate are 2–3 times as high as the sharp red-blue light.  The optimized LED light for lettuce growth can be presumed to be limited to the angle (about 75°) between the vectors passed through the ideal light in the CIE chromaticity coordinates,’ the article reports.