Abstract
A three-year field trial was conducted to study the effect of plant population and harvesting dates on the yield of cleaned 2.0-6.0 mm seed and the seed yield (g) per plant. The highest seed yield was obtained with a spacing of 50 × 12 cm, or 160,000 plants/ha. A decrease in the plant-to-plant spacing to 9 cm decreased the yield by an average of 70 kg/ha over the three study years. The seed yield decreased to an even greater extent when the plant-to-plant spacing was 16 or 24 cm. The seed yields increased the most between the first and second harvesting dates: 400 kg/ha, or 50 kg/ha a day. On the last harvesting date, the seed yield was as low as 5-8 kg/ha. The yield loss was somewhat higher in the most densely sown treatment. The effect of spacing and harvesting date on seed yield per plant was similar to that on total seed yield.
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Claims 7
Claim · model-written summary
The highest seed yield was obtained at a spacing of 50 × 12 cm (160,000 plants/ha).
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- a spacing of 50 × 12 cme1
- Outcome
- seed yielde1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e1“The highest seed yield was obtained with a spacing of 50 × 12 cm, or 160,000 plants/ha”
Claim · model-written summary
Decreasing plant-to-plant spacing to 9 cm decreased yield by an average of 70 kg/ha over three years.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- A decrease in the plant-to-plant spacing to 9 cme2
- Outcome
- yielde2
- Direction
- decreasede2
- Value
- 70 kg/hae2
- Qualifier
- over the three study yearse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e2“A decrease in the plant-to-plant spacing to 9 cm decreased the yield by an average of 70 kg/ha over the three study years”
Claim · model-written summary
Seed yield decreased to a greater extent when plant-to-plant spacing was 16 or 24 cm.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- the plant-to-plant spacing was 16 or 24 cme3
- Outcome
- seed yielde3
- Direction
- decreasede3
- Qualifier
- to an even greater extente3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e3“The seed yield decreased to an even greater extent when the plant-to-plant spacing was 16 or 24 cm”
Claim · model-written summary
Seed yield increased most between the first and second harvesting dates, by 400 kg/ha.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- between the first and second harvesting datese4
- Outcome
- seed yieldse4
- Direction
- increasede4
- Value
- 400 kg/hae4
- Qualifier
- 50 kg/ha a daye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e4“The seed yields increased the most between the first and second harvesting dates: 400 kg/ha, or 50 kg/ha a day”
Claim · model-written summary
Seed yield on the last harvesting date was as low as 5-8 kg/ha.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- On the last harvesting datee5
- Outcome
- seed yielde5
- Direction
- lowerinferrede5
- Value
- 5-8 kg/hae5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e5“On the last harvesting date, the seed yield was as low as 5-8 kg/ha”
Claim · model-written summary
Yield loss was somewhat higher in the most densely sown treatment.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- most densely sown treatmente6
- Outcome
- yield losse6
- Direction
- highere6
- Qualifier
- somewhate6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e6“The yield loss was somewhat higher in the most densely sown treatment”
Claim · model-written summary
The effect of spacing and harvesting date on seed yield per plant was similar to that on total seed yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- spacing and harvesting datee7
- Outcome
- seed yield per plante7
- Comparator
- total seed yielde7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Seed yield of sugar beet”
e7“The effect of spacing and harvesting date on seed yield per plant was similar to that on total seed yield”
The same questions in other papers
harvest time · yield · Beta vulgaris (beet)Positive and negative results
1 paper in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
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See all 11 papers →density · yield · Beta vulgaris (beet)Positive and negative results
26 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
26 papers more in this group
See all 30 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.