Abstract
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).
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Claims 9
Claim · model-written summary
Largardo had a weak response to nitrogen rates.
- Taxon
- cauliflower
Brassica oleracea var. botrytist0 - Material
- Largardoe0
- Outcome
- weak responsee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Variety ‘Largardo’ showed weak response to N application rates”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Lower nitrogen rates did not affect Largardo curd fresh and dry mass or size relative to the other varieties.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Material
- Largardoe0
- Treatment
- 60 and 90 kg/hae0
- Outcome
- Curd fresh and dry mass and sizee0
- Direction
- not affectede0
- Comparator
- the other two varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“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”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Lower nitrogen rates raised L* colour value in all three varieties.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Treatment
- <90 kg N/hae0
- Outcome
- L*e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L*, b* colour value and ascorbic acid content was higher at lower N application rates <90 kg N/ha in all three varieties”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Lower nitrogen rates raised b* colour value in all three varieties.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Treatment
- <90 kg N/hae0
- Outcome
- b* colour valuee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L*, b* colour value and ascorbic acid content was higher at lower N application rates <90 kg N/ha in all three varieties”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Lower nitrogen rates raised ascorbic acid content in all three varieties.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Treatment
- <90 kg N/hae0
- Outcome
- ascorbic acid contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L*, b* colour value and ascorbic acid content was higher at lower N application rates <90 kg N/ha in all three varieties”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Increasing nitrogen rates darkened curds.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Treatment
- increasing N application ratese0
- Outcome
- curd became darkere0
- Direction
- darkere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing N application rates, curd became darker”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Increasing nitrogen rates reduced yellow colour intensity.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Treatment
- increasing N application ratese0
- Outcome
- yellow coloure0
- Direction
- less intensee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing N application rates, curd became darker and less intense in yellow colour”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
Increasing nitrogen rates reduced ascorbic acid content.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Treatment
- Increasing rates of N applicatione0
- Outcome
- ascorbic acid contente0
- Direction
- negative effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing rates of N application clearly posed a negative effect on ascorbic acid content”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
Claim · model-written summary
The authors recommend Largardo at 60 or 90 kg N/ha for yield and ascorbic acid.
- Taxon
- cauliflowerBrassica oleracea var. botrytist0
- Material
- Largardoe0
- Outcome
- suitable variety that produces higher yield and ascorbic acid content at 60 or 90 kg N/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Largardo’ can be recommended as a suitable variety that produces higher yield and ascorbic acid content at 60 or 90 kg N/ha”
t0“cauliflower varieties (Brassica oleracea var. botrytis)”
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See all 40 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.