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Jaimin S. Patel, Shouan Zhang, and Maria I. Costa de Novaes

Sweet basil ( Ocimum basilicum L.; Lamiales: Lamiaceae) is commercially the most important culinary herbal crop grown in the United States. Basil, a member of the mint family, is native to central Asia and northwest India and is grown for both

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Valtcho D. Zheljazkov, Charles L. Cantrell, M. Wayne Ebelhar, Dennis E. Rowe, and Christine Coker

Sweet basil ( Ocimum basilicum L.) is the most widely grown species of the genus Ocimum L. ( Javanmardi et al., 2002 ; Simon et al., 1990 , 1999 ). Recent research demonstrated that sweet basil could be a feasible essential oil crop for

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Carolyn F. Scagel and Jungmin Lee

Many plant species in the Lamiaceae (mint family), including basil ( Ocimum basilicum ), contain high amounts of phenolics ( Dragland et al., 2003 ; Gutierrez et al., 2008 ; Hussain et al., 2008 ; Javanmardi et al., 2002 ; Lee, 2010

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Elisa Solis-Toapanta and Celina Gómez

Oecologia 124 476 486 Chang, X. Alderson, P.G. Wright, C.J. 2008 Solar irradiance level alters the growth of basil ( Ocimum basilicum L.) and its content of volatile oils J. Environ. Expt. Bot. 63 216 223 Currey, C.J. Kopsell, D.A. Mattson, N.S. Craver, J

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Ana Regia Alves de Araújo Hendges, Jose Wagner da Silva Melo, Marcelo de Almeida Guimaraes, and Janiquelle da Silva Rabelo

pimentão ( Capsicum annuum L.) orgânico em cultivo protegido associado a manjericão ( Ocimum basilicum L.). Universidade Federal de Lavras, Lavras, Minas Gerais, PhD Diss Stoetzer, A. 2013 Afídeos vetores de vírus em trigo e cevada em Guarapuava

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Danielle D. Treadwell, George J. Hochmuth, Robert C. Hochmuth, Eric H. Simonne, Lei L. Davis, Wanda L. Laughlin, Yuncong Li, Teresa Olczyk, Richard K. Sprenkel, and Lance S. Osborne

basil ( Ocimum basilicum L.) J. Hort. Sci. Biotechnol. 80 593 598 Changa, C.M. Wang, P. Watson, M.E. Hoitink, H.A.J. Michel F.C. Jr 2003 Assessment of the reliability of a commercial maturity test for composted manures Compost Sci. Util. 11 125 143

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Hunter A. Hammock, Dean A. Kopsell, and Carl E. Sams

products or extracts ( Succop and Newman, 2004 ). Sweet basil ( Ocimum basilicum var. ‘Genovese’) is a specific high-value culinary herb that stands out in terms of consumer demand. Greenhouse operations growing this valuable crop have excellent potential

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John E. Montoya Jr., Michael A. Arnold, Juliana Rangel, Larry R. Stein, and Marco A. Palma

), zinnias ( Zinnia ×marylandica ), and basil ( Ocimum basilicum ) ( Arnold, 2008 ). Cucumber is highly dependent on pollinators for fruit set ( University of Georgia Honey Bee Program, 2019 ). Increased visitation of pollinators has been shown to increase

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Christopher J. Currey, Vincent C. Metz, Nicholas J. Flax, Alex G. Litvin, and Brian E. Whipker

herb growth. While not common for many annual herbs, there are compact sweet basil and dill cultivars, although the selection is limited ( Currey and Mazur, 2018 ). Sweet basil ( Ocimum basilicum ) grown with a zero-difference between the day and night

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Daniel P. Gillespie, Chieri Kubota, and Sally A. Miller

Rootzone pH affects nutrient availability for plants. Hydroponic leafy greens are grown in nutrient solutions with pH 5.5 to 6.5. Lower pH may inhibit plant growth, whereas pathogenic oomycete growth and reproduction may be mitigated. General understanding of pH effects on nutrient availability suggests likely toxicity and deficiency of specific micronutrients. We hypothesized that if adjustments are made to the micronutrient concentrations in solution, plants will grow in lower-than-conventional pH without nutrient disorders, while oomycete disease incidence and severity may be reduced. To develop a new nutrient solution management strategy, we examined pH of 4.0, 4.5, 5.0, and 5.5 with or without micronutrient adjustments for growing two cultivars of basil plants Dolce Fresca and Nufar in a greenhouse hydroponic deep-water culture (DWC) system. Micronutrient adjustments included reduced concentrations of copper, zinc, manganese, and boron by one-half and doubled molybdenum concentration. Plants harvested 20 to 28 days after transplanting did not show significant effects of pH or the micronutrient adjustment. Phosphorus, calcium, magnesium, sulfur, boron, manganese, and zinc concentrations in leaves significantly declined, while potassium and aluminum concentrations increased with decreasing pH. However, these changes and therefore micronutrient adjustments did not affect basil plant growth significantly. ‘Nufar’ basil plants were then grown in a growth chamber DWC system at pH 4.0 or a conventional 5.5 with and without inoculation of Pythium aphanidermatum zoospores. Fourteen days after inoculation, P. aphanidermatum oospore production was confirmed only for the inoculated plants in pH 5.5 solution, where a significant reduction of plant growth was observed. The results of the present study indicate that maintaining nutrient solution pH at 4.0 can effectively suppress the severity of root rot caused by P. aphanidermatum initiated by zoospore inoculation without influencing basil growth.