Abstract
This study aimed to evaluate different spacings between rows on the development and yield of single-head broccoli under the soil and climate conditions of Seropédica, in the Baixada Fluminense region, the State of Rio de Janeiro (Brazil). Tests were carried out under field conditions using the Avenger hybrid. The experimental design adopted was randomized blocks with four treatments and four replications per treatment. Four spacings between rows were tested: 0.6 m, 0.7 m, 0.8 m, and 1.0 m. The spacing between plants in the rows was 0.6 m in all treatments. The number of leaves (NL), plant height (PHT), fresh leaf mass (FLM), stem fresh mass (SFM), inflorescence fresh mass (IFM), inflorescence longitudinal diameter (ILD), and estimated yield (YLD) were evaluated. Data were submitted to analysis of variance (ANOVA) and regression analysis (p<0.05). Spacing variations did not influence PHT and SFM. There was a linear increase in NL and FLM according to the increase in the spacing between rows. A quadratic effect of spacing was observed on ILD, IFM, and YLD. The spacing between the rows of 0.85 m ensured greater yield (6.97 Mg ha-1) and the production of inflorescences with characteristics compatible with those required by the consumer market (ILD = 9.83 cm; MFI = 347.15 g). It is concluded that the production of single-head broccoli under the conditions of Seropédica-RJ is possible, and the population density influences the development and yield of plants.
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Claims 7
Claim · model-written summary
Row spacing did not influence broccoli plant height or stem fresh mass.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- Spacing variationse0
- Outcome
- PHT and SFMe0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Spacing variations did not influence PHT and SFM”
e1“plant height (PHT), fresh leaf mass (FLM), stem fresh mass (SFM)”
t0“BROCCOLI”
Claim · model-written summary
Leaf number and fresh leaf mass increased linearly with wider broccoli row spacing.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- spacing between rowse0
- Outcome
- NL and FLMe0
- Direction
- linear increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“There was a linear increase in NL and FLM according to the increase in the spacing between rows”
t0“BROCCOLI”
Claim · model-written summary
Broccoli inflorescence longitudinal diameter, fresh mass and estimated yield showed quadratic responses to row spacing.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- spacinge0
- Outcome
- ILD, IFM, and YLDe0
- Direction
- quadratic effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“A quadratic effect of spacing was observed on ILD, IFM, and YLD”
t0“BROCCOLI”
Claim · model-written summary
A 0.85 m row spacing gave the greater broccoli yield of 6.97 Mg ha-1.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- spacing between the rows of 0.85 me0
- Outcome
- yielde0
- Direction
- greatere0
- Value
- 6.97 Mg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The spacing between the rows of 0.85 m ensured greater yield (6.97 Mg ha-1)”
t0“BROCCOLI”
Claim · model-written summary
At 0.85 m row spacing, broccoli inflorescence diameter was 9.83 cm.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- spacing between the rows of 0.85 me1
- Outcome
- ILDe0
- Value
- 9.83 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the production of inflorescences with characteristics compatible with those required by the consumer market (ILD = 9.83 cm; MFI = 347.15 g)”
e1“The spacing between the rows of 0.85 m ensured greater yield”
t0“BROCCOLI”
Claim · model-written summary
At 0.85 m row spacing, broccoli inflorescence mass was 347.15 g.
- Taxon
- BROCCOLI
Brassica oleracea var. italicat0 - Treatment
- spacing between the rows of 0.85 me1
- Outcome
- MFIe0
- Value
- 347.15 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“MFI = 347.15 g”
e1“The spacing between the rows of 0.85 m ensured greater yield”
t0“BROCCOLI”
Claim · model-written summary
Single-head broccoli production was feasible under Seropédica conditions.
Verbatim
e0“the production of single-head broccoli under the conditions of Seropédica-RJ is possible”
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