Abstract
Two-year trials are discussed on the effects of different spacings, planting pattern and row orientation, stopping the plants, and time of harvest on the cropping, habit and root growth of the hybrid brussels sprouts variety Thor. Yields of dry matter per sq.m. rose sharply with increasing plant density up to about 4 plants per sq.m., above which there was little further increase. The average weight per plant, however, showed the reverse trend, and declined with closer spacing. The total yields of sprouts from unstopped plants attained a maximum at a density of about 1 plant per sq.m., but the maximum yields and numbers of marketable sprouts were obtained with densities of about 2 and 2 plants per sq.m., respectively. Plants grown at high densities were taller and more slender than low-density plants, a habit well suited to mechanical stripping. Moreover, the sprouts from high-density plants were more uniform, which facilitated grading. There was little difference between the number and distribution of the roots, including depth of rooting, over a wide range of plant densities. However, high-density plants had fewer thick roots, and at the widest spacings the total number of roots per sq.m. declined. The pattern of planting had a slight influence on the height of the low-density plants, but differential effects of various row orientations were negligible. Stopping the plants greatly increased the total yields of sprouts at all densities; the numbers of marketable sprouts from the stopped plants were also greater, especially at densities of 3 plants per sq.m. and above. Harvesting stopped plants in late October instead of late September resulted in much higher yields of sprouts at all densities except the lowest, despite a decline in the fresh weights of the plants during this period.-I.T.T., Wageningen. (Abstract retrieved from CAB Abstracts by CABI’s permission)
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Claims 16
Claim · model-written summary
Dry matter yield rose with density to about 4 plants per sq.m., then changed little.
- Taxon
- brussels sprouts
Brassica oleracea var. gemmiferat0 - Treatment
- increasing plant densitye0
- Outcome
- Yields of dry matter per sq.m.e0
- Direction
- rose sharplye0
- Value
- about 4 plants per sq.m.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields of dry matter per sq.m. rose sharply with increasing plant density up to about 4 plants per sq.m., above which there was little further increase”
t0“brussels sprouts”
Claim · model-written summary
Average plant weight declined with closer spacing.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- closer spacinge0
- Outcome
- average weight per plante0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average weight per plant, however, showed the reverse trend, and declined with closer spacing”
t0“brussels sprouts”
Claim · model-written summary
Unstopped sprout yield peaked at about 1 plant per sq.m.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- unstopped plantse0
- Outcome
- total yields of sproutse0
- Direction
- maximume0
- Value
- about 1 plant per sq.m.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total yields of sprouts from unstopped plants attained a maximum at a density of about 1 plant per sq.m.”
t0“brussels sprouts”
Claim · model-written summary
Marketable sprout yield peaked at about 2 plants per sq.m.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Outcome
- maximum yieldse0
- Direction
- maximume0
- Value
- 2 plants per sq.m.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum yields and numbers of marketable sprouts were obtained with densities of about 2 and 2 plants per sq.m., respectively”
t0“brussels sprouts”
Claim · model-written summary
Marketable sprout number peaked at about 2 plants per sq.m.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Outcome
- numbers of marketable sproutse0
- Direction
- maximume0
- Value
- 2 plants per sq.m.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum yields and numbers of marketable sprouts were obtained with densities of about 2 and 2 plants per sq.m., respectively”
t0“brussels sprouts”
Claim · model-written summary
High-density plants were taller and more slender.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- high densitiese0
- Outcome
- taller and more slendere0
- Direction
- taller and more slendere0
- Comparator
- low-density plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants grown at high densities were taller and more slender than low-density plants”
t0“brussels sprouts”
Claim · model-written summary
High-density sprouts were more uniform.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- high-density plantse0
- Outcome
- sproutse0
- Direction
- more uniforme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the sprouts from high-density plants were more uniform, which facilitated grading”
t0“brussels sprouts”
Claim · model-written summary
Root number and distribution differed little across densities.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- wide range of plant densitiese0
- Outcome
- number and distribution of the roots, including depth of rootinge0
- Direction
- little differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was little difference between the number and distribution of the roots, including depth of rooting, over a wide range of plant densities”
t0“brussels sprouts”
Claim · model-written summary
High-density plants had fewer thick roots.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- high-density plantse0
- Outcome
- thick rootse0
- Direction
- fewere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high-density plants had fewer thick roots”
t0“brussels sprouts”
Claim · model-written summary
At widest spacing, roots per area declined.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- widest spacingse0
- Outcome
- total number of roots per sq.m.e0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the widest spacings the total number of roots per sq.m. declined”
t0“brussels sprouts”
Claim · model-written summary
Planting pattern slightly influenced low-density plant height.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- pattern of plantinge0
- Outcome
- height of the low-density plantse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pattern of planting had a slight influence on the height of the low-density plants”
t0“brussels sprouts”
Claim · model-written summary
Row orientations had negligible differential effects.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- various row orientationse0
- Outcome
- differential effectse0
- Direction
- negligiblee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“differential effects of various row orientations were negligible”
t0“brussels sprouts”
Claim · model-written summary
Stopping greatly increased total sprout yield at all densities.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- Stopping the plantse0
- Outcome
- total yields of sproutse0
- Direction
- greatly increasede0
- Qualifier
- at all densitiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stopping the plants greatly increased the total yields of sprouts at all densities”
t0“brussels sprouts”
Claim · model-written summary
Stopped plants had more marketable sprouts, especially above 3 plants per sq.m.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- stopped plantse0
- Outcome
- numbers of marketable sproutse0
- Direction
- greatere0
- Qualifier
- especially at densities of 3 plants per sq.m. and abovee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the numbers of marketable sprouts from the stopped plants were also greater, especially at densities of 3 plants per sq.m. and above”
t0“brussels sprouts”
Claim · model-written summary
Late October harvest increased sprout yield versus late September at all but lowest density.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Treatment
- late Octobere0
- Outcome
- yields of sproutse0
- Direction
- much highere0
- Qualifier
- at all densities except the loweste0
- Comparator
- late Septembere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Harvesting stopped plants in late October instead of late September resulted in much higher yields of sprouts at all densities except the lowest”
t0“brussels sprouts”
Claim · model-written summary
Plant fresh weight declined during the later harvest interval.
- Taxon
- brussels sproutsBrassica oleracea var. gemmiferat0
- Outcome
- fresh weights of the plantse0
- Direction
- declinee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“despite a decline in the fresh weights of the plants during this period”
t0“brussels sprouts”
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