Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest
The influence of five nitrogen (N) application rates (60, 90, 120, 150 and 180 kg N/ha) were evaluated using limestone ammonium nitrate on the curd fresh and dry mass, size, chromaticity coordinates, L*, a*, b* and ascorbic acid content in cauliflower varieties (Largardo, Eskimo and CF-744) during t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-08-01
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| Series: | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/09064710.2018.1440002 |
| _version_ | 1797684398960672768 |
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| author | Madonna N. Mashabela Martin M. Maboko Puffy Soundy Dharini Sivakumar |
| author_facet | Madonna N. Mashabela Martin M. Maboko Puffy Soundy Dharini Sivakumar |
| author_sort | Madonna N. Mashabela |
| collection | DOAJ |
| description | The influence of five nitrogen (N) application rates (60, 90, 120, 150 and 180 kg N/ha) were evaluated using limestone ammonium nitrate on the curd fresh and dry mass, size, chromaticity coordinates, L*, a*, b* and ascorbic acid content in cauliflower varieties (Largardo, Eskimo and CF-744) during the 2015 and 2016 seasons. Commercial standard 120 kg N/ha was included as a control. Variety ‘Largardo’ showed weak response to N application rates and can be regarded as the least sensitive variety for lower N use. Curd fresh and dry mass and size were not affected at lower N application rates of 60 and 90 kg/ha in ‘Largardo’ compared to the other two varieties. However, L*, b* colour value and ascorbic acid content was higher at lower N application rates <90 kg N/ha in all three varieties. With increasing N application rates, curd became darker and less intense in yellow colour. Increasing rates of N application clearly posed a negative effect on ascorbic acid content. Therefore, ‘Largardo’ can be recommended as a suitable variety that produces higher yield and ascorbic acid content at 60 or 90 kg N/ha, with the application rates lower than the commercially recommended rate (120 kg N/ha). |
| first_indexed | 2024-03-12T00:29:05Z |
| format | Article |
| id | doaj.art-4c31ca2d41094545b8870834e55be01a |
| institution | Directory Open Access Journal |
| issn | 0906-4710 1651-1913 |
| language | English |
| last_indexed | 2024-03-12T00:29:05Z |
| publishDate | 2018-08-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Acta Agriculturae Scandinavica. Section B, Soil and Plant Science |
| spelling | doaj.art-4c31ca2d41094545b8870834e55be01a2023-09-15T10:26:23ZengTaylor & Francis GroupActa Agriculturae Scandinavica. Section B, Soil and Plant Science0906-47101651-19132018-08-0168654154510.1080/09064710.2018.14400021440002Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvestMadonna N. Mashabela0Martin M. Maboko1Puffy Soundy2Dharini Sivakumar3Tshwane University of TechnologyAgricultural Research Council-RoodeplaatTshwane University of TechnologyAgricultural Research Council-RoodeplaatThe influence of five nitrogen (N) application rates (60, 90, 120, 150 and 180 kg N/ha) were evaluated using limestone ammonium nitrate on the curd fresh and dry mass, size, chromaticity coordinates, L*, a*, b* and ascorbic acid content in cauliflower varieties (Largardo, Eskimo and CF-744) during the 2015 and 2016 seasons. Commercial standard 120 kg N/ha was included as a control. Variety ‘Largardo’ showed weak response to N application rates and can be regarded as the least sensitive variety for lower N use. Curd fresh and dry mass and size were not affected at lower N application rates of 60 and 90 kg/ha in ‘Largardo’ compared to the other two varieties. However, L*, b* colour value and ascorbic acid content was higher at lower N application rates <90 kg N/ha in all three varieties. With increasing N application rates, curd became darker and less intense in yellow colour. Increasing rates of N application clearly posed a negative effect on ascorbic acid content. Therefore, ‘Largardo’ can be recommended as a suitable variety that produces higher yield and ascorbic acid content at 60 or 90 kg N/ha, with the application rates lower than the commercially recommended rate (120 kg N/ha).http://dx.doi.org/10.1080/09064710.2018.1440002vegetable cropbioactive compoundschromaticity coordinatesfertiliser applicationfresh mass |
| spellingShingle | Madonna N. Mashabela Martin M. Maboko Puffy Soundy Dharini Sivakumar Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest Acta Agriculturae Scandinavica. Section B, Soil and Plant Science vegetable crop bioactive compounds chromaticity coordinates fertiliser application fresh mass |
| title | Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest |
| title_full | Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest |
| title_fullStr | Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest |
| title_full_unstemmed | Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest |
| title_short | Variety specific responses of cauliflower varieties (Brassica oleracea var. botrytis) to different N application rates on yield, colour and ascorbic acid content at harvest |
| title_sort | variety specific responses of cauliflower varieties brassica oleracea var botrytis to different n application rates on yield colour and ascorbic acid content at harvest |
| topic | vegetable crop bioactive compounds chromaticity coordinates fertiliser application fresh mass |
| url | http://dx.doi.org/10.1080/09064710.2018.1440002 |
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