Abstract
The objective was to provide results to optimize the production of table beet ( Beta vulgaris L.) with respect to yield and quality. Field experiments were carried out over 2 years, where the effects of nitrogen (N) supply, sowing date, and cultivar were tested in a block design with four replications. In addition to yield, soluble solids and nitrate N contents of roots were measured to assess quality. Sowing date was an important factor for determining yield and quality of table beet. Sowing dates later than June at the experimental site are not recommended because they resulted in an increase in nitrate N content in fresh weight of up to 3027 mg·kg -1 and an average yield loss of 46% compared to sowings in April. Soluble solids content (SSC) was only slightly affected by planting date. Nitrogen supply did not affect SSC, but increasing N supply led to a major increase in nitrate N content, especially if combined with late sowing dates. It was concluded for early sowing dates that N supply be determined to achieve the maximum yield. With an early sowing date, nitrate N content in fresh weight at harvest was <563 mg·kg -1 , even with a high N supply of 250 kg·ha -1 . Late sowing dates required a reduced N supply to keep harvest nitrate contents below the 2500 mg·kg -1 required by the processing industry. Recommendations for optimizing N supply, sowing date, and cultivars for table beet should always take into account strong interactions between these factors.
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Claims 10
Claim · model-written summary
Sowing later than June increased fresh weight nitrate N content to as much as 3027 mg·kg -1.
- Taxon
- table beet
Beta vulgaris subsp. vulgarist0 - Treatment
- Sowing dates later than Junee0
- Outcome
- nitrate N content in fresh weighte0
- Direction
- increasee0
- Value
- 3027 mg·kg -1e0
- Comparator
- sowings in Aprile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing dates later than June at the experimental site are not recommended because they resulted in an increase in nitrate N content in fresh weight of up to 3027 mg·kg -1 and an average yield loss of 46% compared to sowings in April”
t0“Table Beet”
Claim · model-written summary
Sowing later than June reduced average yield by 46% against April sowing.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Treatment
- Sowing dates later than Junee0
- Outcome
- yielde0
- Direction
- losse0
- Value
- 46%e0
- Comparator
- sowings in Aprile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing dates later than June at the experimental site are not recommended because they resulted in an increase in nitrate N content in fresh weight of up to 3027 mg·kg -1 and an average yield loss of 46% compared to sowings in April”
t0“Table Beet”
Claim · model-written summary
Planting date slightly affected soluble solids content.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Treatment
- planting datee0
- Outcome
- Soluble solids content (SSC)e0
- Qualifier
- only slightlye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soluble solids content (SSC) was only slightly affected by planting date”
t0“Table Beet”
Claim · model-written summary
Nitrogen supply did not affect soluble solids content.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Treatment
- Nitrogen supplye0
- Outcome
- SSCe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen supply did not affect SSC”
t0“Table Beet”
Claim · model-written summary
Increasing nitrogen supply raised nitrate N content, particularly with late sowing.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Treatment
- increasing N supplye0
- Outcome
- nitrate N contente0
- Direction
- increasee0
- Qualifier
- especially if combined with late sowing datese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N supply led to a major increase in nitrate N content, especially if combined with late sowing dates”
t0“Table Beet”
Claim · model-written summary
Early sowing kept harvest nitrate N below 563 mg·kg -1 even with 250 kg·ha -1 nitrogen.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Treatment
- high N supply of 250 kg·ha -1e0
- Outcome
- nitrate N content in fresh weight at harveste0
- Value
- <563 mg·kg -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With an early sowing date, nitrate N content in fresh weight at harvest was <563 mg·kg -1 , even with a high N supply of 250 kg·ha -1”
t0“Table Beet”
Claim · model-written summary
Sowing later than June is not recommended.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Outcome
- Sowing dates later than June at the experimental site are not recommendede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sowing dates later than June at the experimental site are not recommended”
t0“Table Beet”
Claim · model-written summary
For early sowing, nitrogen supply should target maximum yield.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Outcome
- N supply be determined to achieve the maximum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for early sowing dates that N supply be determined to achieve the maximum yield”
t0“Table Beet”
Claim · model-written summary
Late sowing requires reduced nitrogen supply to keep harvest nitrate below 2500 mg·kg -1.
- Taxon
- table beetBeta vulgaris subsp. vulgarist0
- Outcome
- reduced N supply to keep harvest nitrate contents below the 2500 mg·kg -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Late sowing dates required a reduced N supply to keep harvest nitrate contents below the 2500 mg·kg -1 required by the processing industry”
t0“Table Beet”
Claim · model-written summary
Recommendations should consider strong interactions among nitrogen supply, sowing date and cultivar.
- Taxon
- table beetBeta vulgaris subsp. vulgarise0
- Outcome
- take into account strong interactions between these factorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recommendations for optimizing N supply, sowing date, and cultivars for table beet should always take into account strong interactions between these factors”
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