Article | . 2017 Vol. 35, Issue. 6
Comparison of Growth, Development, and Photosynthesis of Petunia Grown Under White or Red-blue LED lights



Program in Agricultural Interdisciplinary, Graduate School, Maejo University1
Program in Horticulture, Faculty of Agricultural Production, Maejo University2




2017.. 689:699


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Red-blue (RB) LED lighting systems are widely used for plant cultivation because red and blue light are effectively absorbed by photosynthetic pigments. However, numerous studies have shown that RB LED light is either comparable to or less effective than white light in supporting plant growth. In this study, we compared the effects of RB or white LED light on growth, development, and photosynthesis of petunia (Petunia × hybrida Vilm.) plants. The plants in both treatments had similar shoot fresh weights, but the plants grown under white LED light had significantly higher shoot dry weight than those grown under RB LED light. Petunia plants grown continuously under RB light exhibited the higher single-leaf CO2 assimilation rate at 9 weeks after sowing but the lower maximum quantum efficiency and operating efficiency of PSII than those grown under white LED light. In another experiment, petunia plants were grown continuously under white LED light before measurements of single leaf CO2 assimilation rate and canopy apparent photosynthesis (CAP) under RB or white LED light. It was found that single leaf CO2 assimilation rates under RB light were higher than those under white light. However, CAP measured under RB light was either similar to or lower than that in plants measured under white LED light. White LED light had higher percentages of light transmission through the leaves than RB LED light. Results from this study suggest that white LED light could be more effective at supporting petunia plant growth than RB LED light because of its greater ability to transmit through leaves and drive photosynthesis at the canopy level.



1. Bourget CM (2008) An introduction to light-emitting diodes. HortScience 43:1944–1946  

2. Fujiwara K (2016). Light sources. In T Kozai, G Niu, M Takagaki, eds, Plant Factory: An Indoor Vertical Farming System for Efficient Quality Food Production, Ed 1, Academic Press, Elsevier, Amsterdam, The Netheranlds, pp 118-127   

3. Fukuyama T, Ohashi-Kaneko K, Watanabe H (2015) Estimation of optimal red light intensity for production of the pharmaceutical drug components, vindoline and catharanthine, contained in Catharanthus roseus (L.) G. Don. Environ Control Biol 53:217-220  

4. Gautam P, Terfa MT, Olsen JE, Torre S (2015) Red and blue light effects on morphology and flowering of petunia × hybrida. Sci Hortic 184:171-178  

5. Haliapas S, Yupsanis TA, Syros TD, Kofidis G, Economou AS (2008) petunia × hybrida during transition to flowering as affected by light intensity and quality treatments. Acta Physiol Plant 30: 807-815  

6. Heo JW, Lee CW, Murthy HN, Paek KY (2003) Influence of light quality and photoperiod on flowering of Cyclamen persicum Mill. cv. Dixie White. Plant Growth Regul 40:7-10  

7. Kang HW, Park JS, Park KS, Son JE (2016) Leaf photosynthetic rate, growth, and morphology of lettuce under different fractions of red, blue, and green light from light-emitting diodes (LEDs). Hortic Environ Biotechnol 57:573-579  

8. Kim HH, Goins GD, Wheeler RM, Sager JC (2004a) Green-light supplementation for enhanced lettuce growth under red- and bluelight-emitting diodes. HortScience 39:1617-22  

9. Kim SJ, Hahn EJ, Heo JW, Paek KY (2004b) Effects of LEDs on net photosynthetic rate, growth and leaf stomata of chrysanthemum plantlets in vitro. Sci Hortic 101:143-151  

10. Kozai T, Niu G (2016a) Introduction. In Kozai T, Niu G, Takagaki M, ed, Plant Factory: An Indoor Vertical Farming System for Efficient  

11. Kozai T, Niu G (2016b) Challenges for the next-generation PFAL. In T Kozai, G Niu, M Takagaki, eds, Plant Factory: An Indoor Vertical  

12. Lee I, Amasino RM (1995) Effect of vernalization, photoperiod, and light quality on the flowering phenotype of arabidopsis plants containing the FRIGIDA gene. Plant Physiol 108:157-16  

13. Lee SH, Tewari RK, Hahn EJ, Paek KY (2007) Photon flux density and light quality induce changes in growth, stomatal development, photosynthesis and transpiration of Withania somnifera (L.) Dunal plantlets. Plant Cell Tiss Organ Cult 90:141-151  

14. Lin KH, Huang MY, Huang WD, Hsu MH, Yang ZW, Yang CM (2013) The effects of red, blue, and white light-emitting diodes on the growth, development, and edible quality of hydroponically grown lettuce (Lactuca sativa L. var. capitata) . Sci Hortic 150:86–91  

15. Liu T, Wang Z, Cai T (2016) Canopy apparent photosynthetic characteristics and yield of two spike-type wheat cultivars in response to row spacing under high plant density. PLoS ONE 11:e0148582  

16. Massa GD, Kim H, Wheeler RM, Mitchell CA (2008) Plant productivity in response to LED lighting. HortScience 43:1951-1956  

17. Park IS, Cho KJ, Kim J, Cho JY, Lim TJ, Oh W (2016) Growth and flowering responses of petunia to various artificial light sources with different light qualities. Korean J Hortic Sci Technol 34:55-66  

18. Runkle ES, Heins RD (2001) Specific functions of red, far red, and blue light in flowering and stem extension of long-day plants. J Am Soc Hortic Sci 126:275-282  

19. Sabzalian MR, Heydarizadeh P, Zahedi M, Boroomand A, Agharokh M, Sahba MR, Schoefs B (2014) High performance of vegetables, flowers, and medicinal plants in a red-blue LED incubator for indoor plant production. Agron Sustain Dev 34:879-886  

20. Sakhonwasee S, Thummachai K, Nimnoi N (2017) Influences of LED light quality and intensity on stomatal behavior of three petunia cultivars grown in a semi-closed system. Environ Control Biol 55:93-103  

21. Shimokawa A, Tonooka Y, Matsumoto M, Ara H, Suzuki H, Yamauchi N, Shigyo M (2014) Effect of alternating red and blue light irradiation generated by light emitting diodes on the growth of leaf lettuce. bioRxiv 003103. doi: http://dx.doi.org/10.1101/003103  

22. Sink KC (1984) Anatomy and orphology. In KC Sink, ed, petunia, Ed 1, Springer-Verlag, Berlin Heidelberg, Germany, pp 10-20  

23. Son KH, Oh M (2015) Growth, photosynthetic and antioxidant parameters of two lettuce cultivars as affected by red, green, and blue light-emitting diodes. Hortic Environ Biotechnol 56:639-653  

24. Terashima I, Fujita T, Inoue T, Chow WS, Oguchi R (2009) Green light drives leaf photosynthesis more efficiently than red light in strong white light: revisiting the enigmatic question of why leaves are green. Plant Cell Physiol 50:684-97  

25. Watanabe H (2011) Light-controlled plant cultivation system in Japan - development of a vegetable factory using LEDs as a ligh  

26. Xiaoying L, Shirong G, Taotao C, Zhigang X, Tezuka T (2012) Regulation of the growth and photosynthesis of cherry tomato seedlings  

27. Yamori W (2016) Photosynthesis and respiration. In T Kozai, G Niu, M Takagaki, eds, Plant Factory: An Indoor Vertical Farming System  

28. Yorio NC, Goins GD, Kagie HR, Wheeler RM, Sager JC (2001) Improving spinach, radish and lettuce growth under red light-emitting diodes (LEDs) with blue light supplementation. HortScience 36:380-383