Growth, yield, plant quality and nutrition of basil (Ocimum basilicum L.) under soilless agricultural systems

Saha, Subhrajit; Monroe, Amber; Day, Martin

doi:10.1016/j.aoas.2016.10.001

Cited by 120 publications

(93 citation statements)

References 23 publications

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“…To the best of our knowledge, few studies are available on aquaponics basil production. Besides UVI studies (Rakocy et al, 2004a(Rakocy et al, , 2004b(Rakocy et al, , 2006(Rakocy et al, , 2011, most references compare aquaponics to hydroponics (Saha et al, 2016) or cultivate different basil cultivars in hydroponics systems (Walters and Currey, 2015), limiting data comparison.…”

Section: Resultsmentioning

confidence: 99%

“…Walters and Currey (2015) recently compared hydroponics systems and basil cultivars in greenhouse conditions with environmental control. Saha et al (2016) cultivated basil under soilless agricultural systems (aquaponics vs. hydroponics), without indicating how different cultivars perform. The evaluation of plant adaptation in tropical conditions is essential to recommend new cultivars for the UVI Commercial Aquaponics System.…”

Section: Variety Trialsmentioning

confidence: 99%

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Basil Performance Evaluation in Aquaponics

Ferrarezi

Bailey

2019

hortte

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Basil (Ocimum sp.) is a fast-growing, high-value cash crop for aquaponics. Plant suitability evaluation in tropical conditions is critical to recommend new cultivars, increasing grower portfolio and minimizing the production risks associated with untested selections. Two trials were conducted to identify suitable basil cultivars for tropical outdoor aquaponics production using the University of the Virgin Islands (UVI) Commercial Aquaponics System in the U.S. Virgin islands. We evaluated five basil cultivars in Summer 2015 (Genovese, Lemon, Purple Ruffles, Red Rubin, and Spicy Globe), and seven cultivars in Fall 2015 (Cinnamon, Genovese, Lemon, Purple Ruffles, Red Rubin, Spicy Globe, and Thai). In both trials, 3-week-old seedlings were transplanted in net pots at a density of 1.5 plants/ft2 (16.15 plants/m2). The 6-inch portions and upper portions of the canopy were harvested as a salable product and the resultant material (leaves and stems) considered as total yield per square meter. In the summer, yield was higher in ‘Genovese’ (14.91 kg·m−2) and ‘Spicy Globe’ (13.99 kg·m−2); ‘Purple Ruffles’ resulted in the lowest yield (4.18 kg·m−2). Leaf anthocyanin was greater for the red cultivars Red Rubin [28.35 anthocyanin content index (ACI)] and Purple Ruffles (34.36 ACI) compared with the other cultivars. Chlorophyll content was the highest in ‘Genovese’ [48.59 chlorophyll content index (CCI)]. In the fall, ‘Cinnamon’ (6.60 kg·m−2), ‘Genovese’ (6.70 kg·m−2), and ‘Spicy Globe’ (6.35 kg·m−2) showed the highest yield and ‘Purple Ruffles’ the lowest (1.68 kg·m−2). Leaf anthocyanin differed in all cultivars, with the higher values in Purple Ruffles (80.5 ACI) and Red Rubin (36.5 ACI). Chlorophyll content was a response of plant growth and cultivar, with values increasing over time and ranging from 12.06 (Lemon) to 17.99 CCI (Cinnamon). Plant growth index (PGI) was higher than that of other cultivars in Genovese and Lemon on day 58 (summer), and higher in Cinnamon on day 87 (fall). Yield was greater during the summer, which was calculated from May to August, in comparison with the fall, calculated from September to November. Yield declined for the fourth harvest in the summer, indicating that growers may need to end production after the third harvest and replant the crop. The results of this experiment indicate that basil has potential as a specialty, short-season, and high-value crop in the UVI Commercial Aquaponics System. Of the cultivars tested, Genovese and Spicy Globe were the highest yielding cultivars within the environmental and geographical conditions of this study for two consecutive seasons (summer and fall).

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Section: Resultsmentioning

confidence: 99%

Section: Variety Trialsmentioning

confidence: 99%

Basil Performance Evaluation in Aquaponics

Ferrarezi

Bailey

2019

hortte

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“…Morphological measurements included; plant height (cm) from the compost surface to the top of the plants; leaf area LA (mm 2 ), using leaf an area image analyser HITACHI KP-D40 colordigital camera with a lightbox and WinDias 1.5 software (Delta-T Devices Ltd, Cambridge, UK); fresh weight (FW) and dry weight (DW) (g) after removing the root system, using a sensitive Fisher Scientific SG-402 laboratory balance; plants were dried at 60 • C for 96 h [31].…”

Section: Methodsmentioning

confidence: 99%

The Growth and Development of Sweet Basil (Ocimum basilicum) and Bush Basil (Ocimum minimum) Grown under Three Light Regimes in a Controlled Environment

et al. 2019

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Light is a crucial element for plant growth and production. In areas where natural light is not sufficient for optimal plant growth and production, high pressure sodium (HPS) light sources are widely used. However, HPS lamps are considered not very electrically efficient generating high radiant heat and as a consequence, there has been a lot of interest in replacing HPS lamps with new more efficient lighting sources in the form of light-emitting diodes (LEDs). The effects of three lighting sources (White LED, Blue/Red LED and HPS) on the growth, development and on the essential oil yield and quality of sweet basil and bush basil were investigated. There was a clear advantage to the Blue/Red (452 nm and 632 nm, respectively) LED on virtually all growth and physiological parameters measured for both basil species. The HPS lighting system always performed least effectively in all comparisons. Combining increases in plant yield and increases in oil yield the Blue/Red LED array outperformed the HPS lights by a factor of approximately double, with the white LED being intermediate between these two extremes.

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“…A decoupled three-loop system as described by consists of a recirculating aquaculture system (RAS) loop, a hydroponic (HP) loop, and a remineralization loop. The benefits of a decoupled approach is that environmental conditions of each loop can be adapted to the species-dependent requirements, and by reducing trade-offs, can lead to enhanced growth performance Goddek and Vermeulen, 2017;Saha et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Opportunities and Challenges of Multi-Loop Aquaponic Systems

Goddek

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v Preface Which of us is not familiar with this situation during the student time: on a Wednesday night, one wants to go out to grab a beer ("just one Duveltje") with friends. Until the end of the night (and several beers later) one was trapped in several discussions about religion, politics, and one's field of study. I have to admit, that I have been involved in plenty of such discussions, which also stems from the fact that I am a very discussion-friendly and curious person. However, I caught myself often saying the same sentence "well, the idea is great, but it actually does not really work as it should" with respect to two topics: Aquaponics and Communism. This might appear to be a somewhat far-fetched statement, however, for those who have neither read Marx nor followed the development of aquaponics the last 30 years: in a nutshell it can be stated that both of these ideas follow bottom-up (i.e. local and circular) approaches (i.e. for small farmers and individuals).Additionally to the above, I honestly believe that in times of the financial crisis -in which multinational corporations such as [think of big corporations that produce GMO seeds that are immune to their pesticides] increase their quasi-monopoly positions on the global food market -a paradigm shift back to human-centred and sustainable agricultural development is required to ensure both (1) healthy (i.e. pesticide free) diets and (2) food independence. In contrast, organic, fair trade, and GMO-free food have recently gained rapidly increasing popularity. Consumers want transparent and extensive information about the origin and manufacture of the foodstuffs they buy. The development of agriculture and how to use (finite) resources efficiently will be crucial with respect to the global development and the future of the earth in general. Right now, we are at a crossroads in our history that will determine whether either the people or the corporations will be empowered. I intended to provocatively illustrate this new class conflict on the book cover with the objective to polarize and thus energize the readers themselves to make thoughts and reflections.So far, I have dedicated over 4 years of my life to study and improve aquaponic systems in the hope that one day their production efficiency will be able to compete with state-of-theart hydroponic food production systems, while improving circularity. In this thesis, I will try to demonstrate why aquaponics does not face the same pitfalls as communism, while sharing the empowering people-minded and bottom-up qualities that are required in the 21st century.

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Growth, yield, plant quality and nutrition of basil (Ocimum basilicum L.) under soilless agricultural systems

Cited by 120 publications

References 23 publications

Basil Performance Evaluation in Aquaponics

Basil Performance Evaluation in Aquaponics

The Growth and Development of Sweet Basil (Ocimum basilicum) and Bush Basil (Ocimum minimum) Grown under Three Light Regimes in a Controlled Environment

Opportunities and Challenges of Multi-Loop Aquaponic Systems

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