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Effects of Growing Cycle and Genotype on the Morphometric Properties and Glucosinolates Amount and Profile of Sprouts, Microgreens and Baby Leaves of Broccoli (Brassica oleracea L. var. italica Plenck) and Kale (B. oleracea L. var. acephala DC.)

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Department of Agriculture, Food and Environment (Di3A), Università degli Studi di Catania, Via Valdisavoia 5, 95123 Catania, Italy
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CEBAS-CSIC, Phytochemistry and Healthy Foods Lab, Food Science and Technology Department, Campus Universitario de Espinardo-25, E-30100 Murcia, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Nikolaos Tzortzakis
Agronomy 2021, 11(9), 1685; https://doi.org/10.3390/agronomy11091685
Received: 21 July 2021 / Revised: 19 August 2021 / Accepted: 22 August 2021 / Published: 24 August 2021
(This article belongs to the Section Crop Breeding and Genetics)
Some new foods (sprouts, microgreens and baby leaf) of the brassica genus are appreciated for their nutritional and nutraceutical values. The aim of this experimental trial was to improve the nutraceutical traits of these foods by evaluating the effects of the climatic condition, genotype, and plant growth stage on the development of greater quality in relation to these new foods. The morphometric and glucosinolates (GLSs) traits of three traditional Italian cultivars of Brassica oleracea crops, such as broccoli (B. oleracea var. italica), namely the traditional Sicilian landrace ‘Broccolo Nero’ (BN) and the commercial ‘Cavolo Broccolo Ramoso Calabrese’ (CR), as well as the commercial kale cultivar ‘Cavolo Laciniato Nero di Toscana’ (CL) (B. oleracea var. acephala DC.), were evaluated in an unheated greenhouse in Catania during the end of 2019 and the beginning of 2020. Plant growth was studied at different phenological stages—from seeds to sprouts, microgreens, and baby leaves—over two growing cycles, one in autumn–winter and the other in spring–summer. ‘Broccolo Nero’ (BN) broccoli showed more rapid growth and biomass production than the other two cultivars evaluated (i.e., weight, hypocotyl length, and leaf width). The GLS profile varied significantly (p < 0.05), in relation both to plant’s growth stage and to genotype. The highest amount of glucoraphanin was detected for BN microgreens and baby leaves, about 8 µmol g−1 d.w., whereas glucobrassicin and its related derivatives were about 14 µmol g−1 d.w. in microgreens and baby leaves of CL and about 15 µmol g−1 d.w. and 10 µmol g−1 d.w. for glucoraphanin in CR, respectively. These new foods can also be produced at home with simple and cheap equipment View Full-Text
Keywords: Brassicaceae; vegetable crops; germplasm exploitation; new foods; greens Brassicaceae; vegetable crops; germplasm exploitation; new foods; greens
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MDPI and ACS Style

Di Bella, M.C.; Toscano, S.; Arena, D.; Moreno, D.A.; Romano, D.; Branca, F. Effects of Growing Cycle and Genotype on the Morphometric Properties and Glucosinolates Amount and Profile of Sprouts, Microgreens and Baby Leaves of Broccoli (Brassica oleracea L. var. italica Plenck) and Kale (B. oleracea L. var. acephala DC.). Agronomy 2021, 11, 1685. https://doi.org/10.3390/agronomy11091685

AMA Style

Di Bella MC, Toscano S, Arena D, Moreno DA, Romano D, Branca F. Effects of Growing Cycle and Genotype on the Morphometric Properties and Glucosinolates Amount and Profile of Sprouts, Microgreens and Baby Leaves of Broccoli (Brassica oleracea L. var. italica Plenck) and Kale (B. oleracea L. var. acephala DC.). Agronomy. 2021; 11(9):1685. https://doi.org/10.3390/agronomy11091685

Chicago/Turabian Style

Di Bella, Maria C., Stefania Toscano, Donata Arena, Diego A. Moreno, Daniela Romano, and Ferdinando Branca. 2021. "Effects of Growing Cycle and Genotype on the Morphometric Properties and Glucosinolates Amount and Profile of Sprouts, Microgreens and Baby Leaves of Broccoli (Brassica oleracea L. var. italica Plenck) and Kale (B. oleracea L. var. acephala DC.)" Agronomy 11, no. 9: 1685. https://doi.org/10.3390/agronomy11091685

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