1. Hayden A. Aeroponic and hydroponic system for medicinal herb, rhizome and root crop. Hort Sci. 2006;41:536-538.
2. Soffer H, Burger DW. Effects of dissolved oxygen concentrations in aero-hydroponics on the formation and growth of adventitious roots. J Am Soc Hortic Sci. 1988;113:218-221.
3. Biddinger EJ, Liu C, Joly RJ, Raghothama K. Physiological and molecular responses of aeroponically grown tomato plants to phosphorus deficiency. J Am Soc Hortic Sci. 1998;123:330-333.
4. Molitor HD, Fischer M, Popadopoulos AP. Effect of several parameters on the growth of chrysanthemum stock plants in aeroponics. Acta Hort. 1999;481:179-186.
5. Ritter E, Angulo B, Riga P, Herran C, Relloso J, San Jose M. Comparison of hydroponic and aeroponic cultivation systems for the production of potato minitubers. Potato Res. 2001;44:127-135.
6. Asao T. Hydroponic- a standard methodology for plant biological researches. 2012; In Tech Press.
7. Penzkofer M, Ziegler E, Heuberger H. Contents of essential oil, valerenic acids and extractives indifferent parts of the rootstock of medicinal valerian (Valeriana officinalis L) .J Appl Res Med Aromat Plants. 2014;1:98-106.
8. Resh HM. Hydroponic Food Production: A Definitive Guidebook for the Advanced Home Gardener and the Commercial Hydroponic Grower; CRC Press: Boca Raton, FL, USA. 2012.
9. Buckseth T, Sharma AK, Pandey KK, Singh BP, Muthuraj R. Methods of pre-basic seed potato production with special reference to aeroponics-A review. Sci Hortic. 2016;204:79-87.
10. Margaret C. Potential of aeroponics system in the production of quality potato (Solanum tuberosum L.) seed in developing countries. Afr J Biotech. 2012;11:3993-3999.
11. Hayden A, Yokelsen T, Giacomelli G, Hoffmann J. Aeroponics: An alternative production system for high-value root crops. Acta Hort. 2004;629:207–213.
12. Hayden AL, Brigham LA, Giacomelli GA. Aeroponic cultivation of ginger (Zingiber officinale) rhizomes. Acta Hort. 2004;659:397-402.
13. Souret FF, Weathers PJ. The Growth of Saffron (Crocus sativus L.) in Aeroponics and Hydroponics. J. Herbs, Spices Med. Plants. 2000;7:25-35.
14. Tabatabaei SJ. Effects of cultivation systems on the growth, and essential oil content and composition of Valerian. J Herbs Spices Med Plants. 2008;14:54-67.
15. Mehandru P, Shekhawat NS, Rai MK, Kataria V, Gehlot HS. Evaluation of aeroponics for clonal propagation of Carallumaedulis, Leptadeniareticulata and Tylophoraindica-Three threatened medicinal Asclepiads. Physiol. Mol Biol Plants. 2014;20:365-373.
16. Jones JB, Jr. Complete guide for growing plants hydroponically; CRC Press: Boca Raton, FL, USA. 2014.
17. Vavilov NL. The origin, variation, immunity and breeding of cultivated plants. Chronica Botonica. 1951;13:1-366.
18. Pyrek J S. Sesquiterpene lactones of Cichorium intybus and Leontodo nautumnalis. Phytochem. 1985;24:186-188.
19. Malarz J, Stojakowska A, Kisiel W. Sesquiterpene lactones in a hairy root culture of Cichorium intybus. Z. Naturforsch. 2002;57:994-997.
20. Gupta V, Keshari BB. Withania coagulans Dunal. (paneerdoda): A review. Int J Ayurvedic Herb Med. 2013;3:1330-1336.
21. Giles JR, Palat CT, Chien SH, Chang ZG, Kennedy DT. Evaluation of Echinaceafor treatment of common colds. Pharmacoth. 2000;20:690-697.
22. Miller SC, Yu HC. Echinacea: the genus Echinacea: London. 2004; CRC Press.
23. Thygesen L, Thulin J, Mortensen A, Skibsted LH, Molgaard P. Antioxidant activity of chicoric acid and alkamides from Echinacea purpurea, alone and in combination. Food Chem. 2007;101:74-81.
24. Movahedi Z, Moeini A, Soroushzadeh A. Comparison of aeroponics and conventional soil systems for potato minitubers production and evaluation of their quality characters. J Plant Physiol Breed. 2012;2:13-21.
25. Zhongfu N I,Eun-Deok K, Jeffrey Chen, Z. Chlorophyll and starch assays. Chen Lab (The University of Texas at Austin). 2009.
26. Schwarz M. Soilless Culture Management, Springer. Berlin Heidelberg, Germany. 1995.
27. Cowling SA, Field CB. Environmental control of leaf area production: implications for vegetation and land‐surface modeling. Global Biogeochem Cycles. 2003;17:1-7.
28. Taiz L, Zeiger E. Plant physiology. Sinaur associate, Inc . Publisher Sunderland, USA. 2002.
29. Dorais M, Papadopoulos AP, Luo X, Leonhart S, Gosselin A, Pedneault K, Angers P, Gaudreau L. Soilless greenhouse production of medicinal plants in North Eastern Canada. Acta. Hort. 2001;554:297-304.
30. Pagilarulo CL, Hayden AL, Giacomelli GA. Potential for greenhouse aeroponic cultivation of Urtica dioica. In VII International Symposium on Protected Cultivation in Mild Winter Climates: Production. Pest Management and Global Competition. 2005;659:61-69.
31. Tabatabaie SJ, Azarmi F, Dadpour MR, Nazemiyeh H, Nazari J. Evaluation of valerian and lemon verbena production using different soilless and soil cultivations under glasshouse. Acta. Hort. 2007;747:465-470
32. Chang DC, Park CS, Kim SY, Lee YB. Growth and tuberization of hydroponically grown potatoes. Potato Res. 2012;55:69-81.
33. Dannehl D, Taylor Z, Suhl J, Miranda L, Ulrichs R, Salazar C, Fitz-Rodriguez E, Lopez-Cruz I, Rojano-Aguilar A, Navas-Gomez G, Schmidt U. Sustainable Cities: viability of a hybrid aeroponic/nutrient film technique system for cultivation of Tomatoes. Int J Agric Bios. Eng. 2017;11:470-477.
34. Thomaier S, Specht K, Henckel D, Dierich A, Siebert R, Freisinger UB, Sawicka M. Farming in and on urban buildings: Present practice and specific novelties of Zero-Acreage Farming (Z Farming). Renew Agric Food Syst. 2015;30:43-54.
35. AlShrouf A. Hydroponics, aeroponic and aquaponic as compared with conventional farming. Am Sci Res J Eng. Technol Sci. 2017;27:247-255
36. Gysi C, Von Allmen F. Balance of water and nutrients in tomatoes grown on soilless systems. Agrarforschung. 2017;4:25-28.
37. Cho YD, Kang SG, Kim YD, Shin GH, Kim KT. Effects of culture systems on growth and yield of cherry tomatoes in hydroponics. RDAJ Agric Sci. 1996;38:563-567.
38. Salachas G, Savvas D, Argyropoulou K, Tarantillis PA, Kapotis G. Yield and nutritional quality of aeroponically cultivated basil as affected by the available root-zone volume. Em J Food Agric. 2015;27:911-918.
39. Jie H, Kong LS. Growth and photosynthetic responses of three aeroponically grown lettuce cultivars (Lactuca sativa L.) to different root zone temperatures and growth irradiances under tropical aerial conditions. J Hortic Sci Biotechnol. 1998;73:173-180.
40. Park HS, Chiang MH, Park HS. Effects of form and concentration of nitrogen in aeroponic solution on growth, chlorophyll, nitrogen contents and enzyme activities in Cucumis sativum L. plant. J Korean Soc Hortic Sci. 1997;38:642-646.