Abstract
Sowing time is an important factor affecting crop yield and quality, especially in arid and semi-arid regions. The aim of this research was to investigate the effects of sowing time on the growth, yield, and quality of rapeseed genotypes and to determine genotype × sowing time interactions for grain yield and its related traits. The study was carried out using 8 winter rapeseed genotypes (H604049, H604038, H604041, Viking, Elan, Titan, Lorenz, and Trabant) and 4 sowing times (10 October, 20 October, 30 October and 10 November) during the 2005-2006 and 2006-2007 growing seasons. An NIRS system was used to determine oil, protein, glucosinolate and sinapic acid esters. Fatty acid analyses were done by the capillary gas chromatography method. Significant differences were found between sowing times for most of the traits measured. The lowest average seed yield (1027.40 kg ha^{-1}) was obtained from the latest sowing time, whereas the highest average seed yield (2437.50 kg ha^{-1}) was obtained from the earliest sowing time. The genotype H604038 produced the highest seed yield (1988.4 kg ha^{-1}), and it was followed by Trabant (1980.8 kg ha^{-1}) and Titan (1963.8 kg ha^{-1}). The highest oil content, at 42.0%, was obtained from genotype Lorenz at the first sowing time and from genotype Trabant at the second sowing time. No interaction was found between genotype and sowing time for oil content, but significant interactions were found for seed yield and glucosinolates. Seed yield significantly decreased as sowing time was delayed. The effects of sowing time on fatty acid composition were also significant. As a result, it was found that sowing time is an important factor for seed yield and quality in rapeseed.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Latest sowing time gave the lowest average seed yield of rapeseed, 1027.40 kg ha^{-1}.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- latest sowing timee1
- Outcome
- average seed yielde1
- Direction
- loweste1
- Value
- 1027.40 kg ha^{-1}e1
- Comparator
- earliest sowing timee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“The lowest average seed yield (1027.40 kg ha^{-1}) was obtained from the latest sowing time”
e2“the highest average seed yield (2437.50 kg ha^{-1}) was obtained from the earliest sowing time”
Claim · model-written summary
Earliest sowing time gave the highest average seed yield of rapeseed, 2437.50 kg ha^{-1}.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Treatment
- earliest sowing timee2
- Outcome
- average seed yielde2
- Direction
- higheste2
- Value
- 2437.50 kg ha^{-1}e2
- Comparator
- latest sowing timee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“The lowest average seed yield (1027.40 kg ha^{-1}) was obtained from the latest sowing time”
e2“the highest average seed yield (2437.50 kg ha^{-1}) was obtained from the earliest sowing time”
Claim · model-written summary
Genotype H604038 had the highest seed yield, 1988.4 kg ha^{-1}.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- H604038e3
- Outcome
- seed yielde3
- Direction
- higheste3
- Value
- 1988.4 kg ha^{-1}e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e3“The genotype H604038 produced the highest seed yield (1988.4 kg ha^{-1})”
Claim · model-written summary
Trabant was the second-highest seed yielding genotype, at 1980.8 kg ha^{-1}.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- Trabante4
- Outcome
- seed yielde3
- Direction
- followed bye4
- Value
- 1980.8 kg ha^{-1}e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e3“The genotype H604038 produced the highest seed yield (1988.4 kg ha^{-1})”
e4“followed by Trabant (1980.8 kg ha^{-1}) and Titan (1963.8 kg ha^{-1})”
Claim · model-written summary
Titan was the third-highest seed yielding genotype, at 1963.8 kg ha^{-1}.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- Titane4
- Outcome
- seed yielde3
- Direction
- followed bye4
- Value
- 1963.8 kg ha^{-1}e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e3“The genotype H604038 produced the highest seed yield (1988.4 kg ha^{-1})”
e4“followed by Trabant (1980.8 kg ha^{-1}) and Titan (1963.8 kg ha^{-1})”
Claim · model-written summary
Genotype Lorenz had the highest oil content, 42.0%, at the first sowing time.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- Lorenze5
- Treatment
- first sowing timee5
- Outcome
- oil contente5
- Direction
- higheste5
- Value
- 42.0%e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e5“The highest oil content, at 42.0%, was obtained from genotype Lorenz at the first sowing time”
Claim · model-written summary
Genotype Trabant had the highest oil content, 42.0%, at the second sowing time.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- Trabante6
- Treatment
- second sowing timee6
- Outcome
- oil contente5
- Direction
- higheste5
- Value
- 42.0%e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e5“The highest oil content, at 42.0%, was obtained from genotype Lorenz at the first sowing time”
e6“from genotype Trabant at the second sowing time”
Claim · model-written summary
Genotype and sowing time interacted significantly for seed yield and glucosinolates.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- genotypee1
- Treatment
- sowing timee1
- Outcome
- seed yield and glucosinolatese2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“No interaction was found between genotype and sowing time for oil content”
e2“but significant interactions were found for seed yield and glucosinolates”
Claim · model-written summary
Genotype and sowing time did not interact for oil content.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Material
- genotypee1
- Treatment
- sowing timee1
- Outcome
- oil contente1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“No interaction was found between genotype and sowing time for oil content”
Claim · model-written summary
Seed yield significantly decreased as sowing time was delayed.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Treatment
- sowing time was delayede1
- Outcome
- Seed yielde1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“Seed yield significantly decreased as sowing time was delayed”
Claim · model-written summary
Sowing time significantly affected fatty acid composition of rapeseed.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Treatment
- sowing timee1
- Outcome
- fatty acid compositione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“The effects of sowing time on fatty acid composition were also significant”
Claim · model-written summary
Sowing times significantly differed for most of the traits measured.
- Taxon
- rapeseed (Brassica napus subsp. oleifera)Brassica napus var. napust0
- Treatment
- sowing timese1
- Outcome
- most of the traits measurede1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rapeseed (Brassica napus subsp. oleifera)”
e1“Significant differences were found between sowing times for most of the traits measured”
The same questions in other papers
sowing time · yield · Brassica napus (oilseed rape)Positive and negative results
38 papers in the same direction as this paper · 32 in the opposite direction
- negative
- negative
- negative
67 papers more in this group
See all 71 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.