Abstract
BACKGROUND: Radish (Raphanus sativus L.) is cultivated worldwide and one of important vegetables in Korea where year-round production of radish is possible. Most of radishes in autumn are cultivated with double-row spacing except for Gangwon-do where sing-row spacing is predominant. However, no research has been conducted on double-row spacing in radish cultivation so far. This study was conducted to reveal the optimum double-row spacing in autumn cultivation of radish. METHODS AND RESULTS: Using top two popular autumn radish cultivars 'S' and 'C', seeds were sown in spacing between rows of 5525, 4525, 3525 and 2525 cm, and that within rows of 3528, 3525, 3522 and 3519 cm. Plants were harvested 58 days after sowing and leaf weight, length and number, and root weight, length sugar content and pithiness were investigated. In the spacing between rows, no significant difference was observed in leaf weight, length and number in both cultivars; however, 25 cm of spacing between rows significantly reduced the root length and weight in 'S' and 'C' cultivars, respectively. In spacing within rows, 28, 25 and 22 cm did not affect fresh root weight in both cultivars, producing appropriate radish roots of 1,500g on average. However, 19 cm of spacing within rows did not reduced fresh root weight in 'S' cultivar but did significantly in 'C' cultivar (1148.3 g). Sugar contents and pithiness of roots were also affected by spacing but its effect was very small and different between cultivars. CONCLUSION: It is suggested that optimum double-row spacing in autumn radish cultivation is 35 cm and 22 cm of spacing between and within rows, respectively, the spacing that did not reduce the yield and quality of radish roots in two popular autumn radish cultivars.
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Claims 8
Claim · model-written summary
Between-row spacing did not significantly affect leaf weight, length or number in either radish cultivar.
- Treatment
- spacing between rowse0
- Outcome
- leaf weight, length and numbere0
- Direction
- no significant differencee0
- Qualifier
- both cultivarse0
Not reportedTaxonComparator
Verbatim
e0“In the spacing between rows, no significant difference was observed in leaf weight, length and number in both cultivars”
Claim · model-written summary
A 25 cm between-row spacing significantly reduced root length in cultivar S.
Not reportedTaxonComparator
Verbatim
e0“25 cm of spacing between rows significantly reduced the root length and weight in 'S' and 'C' cultivars, respectively.”
Claim · model-written summary
A 25 cm between-row spacing significantly reduced root weight in cultivar C.
Not reportedTaxonComparator
Verbatim
e0“25 cm of spacing between rows significantly reduced the root length and weight in 'S' and 'C' cultivars, respectively.”
Claim · model-written summary
Within-row spacings of 28, 25 and 22 cm maintained fresh root weight in both cultivars, averaging 1,500g.
- Taxon
- radish
Raphanus sativuse0 - Treatment
- 28, 25 and 22 cme0
- Outcome
- fresh root weighte0
- Direction
- did not affecte0
- Value
- 1,500ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“28, 25 and 22 cm did not affect fresh root weight in both cultivars, producing appropriate radish roots of 1,500g on average.”
Claim · model-written summary
A 19 cm within-row spacing did not reduce fresh root weight in cultivar S.
- Material
- Se0
- Treatment
- 19 cm of spacing within rowse0
- Outcome
- fresh root weighte0
- Direction
- did not reducede0
Not reportedTaxonComparator
Verbatim
e0“19 cm of spacing within rows did not reduced fresh root weight in 'S' cultivar”
Claim · model-written summary
A 19 cm within-row spacing significantly reduced fresh root weight in cultivar C to 1148.3 g.
- Material
- Ce0
- Treatment
- 19 cm of spacing within rowse0
- Outcome
- fresh root weighte0
- Direction
- significantlye0
- Value
- 1148.3 ge0
Not reportedTaxonComparator
Verbatim
e0“19 cm of spacing within rows did not reduced fresh root weight in 'S' cultivar but did significantly in 'C' cultivar (1148.3 g).”
Claim · model-written summary
Spacing had small, cultivar-dependent effects on root sugar content and pithiness.
- Treatment
- spacinge0
- Outcome
- Sugar contents and pithiness of rootse0
- Direction
- affectede0
- Qualifier
- very small and different between cultivarse0
Not reportedTaxonComparator
Verbatim
e0“Sugar contents and pithiness of roots were also affected by spacing but its effect was very small and different between cultivars.”
Claim · model-written summary
The authors recommend 35 cm between rows and 22 cm within rows for autumn radish cultivation.
- Taxon
- radishRaphanus sativuse0
- Outcome
- optimum double-row spacinge0
- Value
- 35 cm and 22 cme0
- Qualifier
- autumn radish cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is suggested that optimum double-row spacing in autumn radish cultivation is 35 cm and 22 cm of spacing between and within rows, respectively, the spacing that did not reduce the yield and quality of radish roots in two popular autumn radish cultivars.”
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