Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial
Chinese kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>), a native Chinese vegetable, is usually grown for its bolting stems as the common edible part. However, the tender leaves of the vegetable have higher nutritional value. To investigate the effects of cultivation s...
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MDPI AG
2025-03-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/15/3/671 |
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| author | Yating Wang Huiying Miao Fen Zhang Bo Sun Qiaomei Wang |
| author_facet | Yating Wang Huiying Miao Fen Zhang Bo Sun Qiaomei Wang |
| author_sort | Yating Wang |
| collection | DOAJ |
| description | Chinese kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>), a native Chinese vegetable, is usually grown for its bolting stems as the common edible part. However, the tender leaves of the vegetable have higher nutritional value. To investigate the effects of cultivation seasons on the nutritional substances in leafy Chinese kale, we conducted a pilot trial to analyze the differences in the content of nutritional substances, including glucosinolates, in five varieties of leafy Chinese kale (JLYC-01, JLYC-02, JLYC-03, JLYC-04, JLYC-05) cultured in fall, winter, and spring. The plant weight was 27.2 g–40.4 g in spring, 20.0 g–38.6 g in winter, and 20.3 g–34.0 g in fall, and the JLYC-05 variety showed superiority among the varieties, with weights of 34.0 g in fall, 38.6 g in winter, and 39.7 g in winter. Overall, the nutritional substance content in leafy Chinese kale cultivated in spring and fall was better than that of those cultivated in winter, providing a key reference for leafy Chinese kale planting. Among the five varieties, JLYC-04 and JLYC-05 are excellent candidates for future breeding programs, since JLYC-04 has a higher content of total phenols (10.1 mg GAE g<sup>−1</sup> DW–10.7 mg GAE g<sup>−1</sup> DW) and glucosinolates (5.8 μmol g<sup>−1</sup> DW–7.1 μmol g<sup>−1</sup> DW), exhibiting strong antioxidant capacity, while JLYC-05 contains more chlorophyll (157 mg 100 g<sup>−1</sup> FW–214 mg 100 g<sup>−1</sup> FW) and carotenoids (31.8 mg 100 g<sup>−1</sup> FW–39.1 mg 100 g<sup>−1</sup> FW). |
| format | Article |
| id | doaj-art-3c44dbd871384e28bc424ef947ccc654 |
| institution | DOAJ |
| issn | 2073-4395 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj-art-3c44dbd871384e28bc424ef947ccc6542025-08-20T02:41:58ZengMDPI AGAgronomy2073-43952025-03-0115367110.3390/agronomy15030671Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot TrialYating Wang0Huiying Miao1Fen Zhang2Bo Sun3Qiaomei Wang4Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, ChinaKey Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Horticulture, Sichuan Agricultural University, Chengdu 611130, ChinaKey Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Department of Horticulture, Zhejiang University, Hangzhou 310058, ChinaChinese kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>), a native Chinese vegetable, is usually grown for its bolting stems as the common edible part. However, the tender leaves of the vegetable have higher nutritional value. To investigate the effects of cultivation seasons on the nutritional substances in leafy Chinese kale, we conducted a pilot trial to analyze the differences in the content of nutritional substances, including glucosinolates, in five varieties of leafy Chinese kale (JLYC-01, JLYC-02, JLYC-03, JLYC-04, JLYC-05) cultured in fall, winter, and spring. The plant weight was 27.2 g–40.4 g in spring, 20.0 g–38.6 g in winter, and 20.3 g–34.0 g in fall, and the JLYC-05 variety showed superiority among the varieties, with weights of 34.0 g in fall, 38.6 g in winter, and 39.7 g in winter. Overall, the nutritional substance content in leafy Chinese kale cultivated in spring and fall was better than that of those cultivated in winter, providing a key reference for leafy Chinese kale planting. Among the five varieties, JLYC-04 and JLYC-05 are excellent candidates for future breeding programs, since JLYC-04 has a higher content of total phenols (10.1 mg GAE g<sup>−1</sup> DW–10.7 mg GAE g<sup>−1</sup> DW) and glucosinolates (5.8 μmol g<sup>−1</sup> DW–7.1 μmol g<sup>−1</sup> DW), exhibiting strong antioxidant capacity, while JLYC-05 contains more chlorophyll (157 mg 100 g<sup>−1</sup> FW–214 mg 100 g<sup>−1</sup> FW) and carotenoids (31.8 mg 100 g<sup>−1</sup> FW–39.1 mg 100 g<sup>−1</sup> FW).https://www.mdpi.com/2073-4395/15/3/671cultivation seasonagronomic traitsbioactive compoundsantioxidantsglucosinolates |
| spellingShingle | Yating Wang Huiying Miao Fen Zhang Bo Sun Qiaomei Wang Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial Agronomy cultivation season agronomic traits bioactive compounds antioxidants glucosinolates |
| title | Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial |
| title_full | Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial |
| title_fullStr | Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial |
| title_full_unstemmed | Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial |
| title_short | Seasonal Variation in Nutritional Substances in Varieties of Leafy Chinese Kale (<i>Brassica oleracea</i> var. <i>alboglabra</i>): A Pilot Trial |
| title_sort | seasonal variation in nutritional substances in varieties of leafy chinese kale i brassica oleracea i var i alboglabra i a pilot trial |
| topic | cultivation season agronomic traits bioactive compounds antioxidants glucosinolates |
| url | https://www.mdpi.com/2073-4395/15/3/671 |
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