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Agronomy 2019, 9(4), 194; https://doi.org/10.3390/agronomy9040194

Production, Leaf Quality and Antioxidants of Perennial Wall Rocket as Affected by Crop Cycle and Mulching Type

1
Department of Agricultural Sciences, University of Naples Federico II, via Università 100, 80055 Portici (Naples), Italy
2
Faculty of Horticulture, University of Agriculture and Veterinary Medicine, Aleea Mihail Sadoveanu 3, 700490 Iasi, Romania
3
CREA–Research Center for Cereal and Industrial Crops, via Torrino 2, 81100 Caserta, Italy
*
Authors to whom correspondence should be addressed.
Received: 6 March 2019 / Revised: 2 April 2019 / Accepted: 13 April 2019 / Published: 16 April 2019
(This article belongs to the Section Horticultural and Floricultural Crops)
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Abstract

The plastic mulch has raised a disposal issue, which has been diverting the research focus on biodegradable film as an alternative. Research was carried out in southern Italy in 2016–2017 and 2017–2018 in order to assess the effects of three crop cycles (autumn-winter, winter, spring) in factorial combination with three soil mulching types (a MaterBi biodegradable black film; a brown photoselective low density polyethylene (LDPE) film; a black-standard LDPE film) and a non-mulched control, on leaves yield, quality and antioxidants of greenhouse grown Diplotaxis tenuifolia (L.) D.C. The spring cycle was the shortest and best enhanced plant growth and yield. The non-mulched control caused an 11% yield reduction compared to the mulching treatments average (12.4 t ha−1). The soil temperature was highest under photoselective and standard LDPE films. The Soil Plant Analysis Development (SPAD) index was 17.4% higher in the leaves grown in mulched soil. Winter season and biodegradable mulch led to higher leaf dry residue and organic acids. Leaf nitrate content was highest in winter and under mulching. The spring cycle, the biodegradable and photoselective LDPE film resulted in the highest antioxidant compound content and activity. The biodegradable polymer improved leaf quality, showing suitable features for sustainable production. View Full-Text
Keywords: Diplotaxis tenuifolia (L.) D.C.; arugula; biodegradable film; production; polyphenols; ascorbic acid; antioxidant activity Diplotaxis tenuifolia (L.) D.C.; arugula; biodegradable film; production; polyphenols; ascorbic acid; antioxidant activity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Caruso, G.; Stoleru, V.; De Pascale, S.; Cozzolino, E.; Pannico, A.; Giordano, M.; Teliban, G.; Cuciniello, A.; Rouphael, Y. Production, Leaf Quality and Antioxidants of Perennial Wall Rocket as Affected by Crop Cycle and Mulching Type. Agronomy 2019, 9, 194.

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