Abstract
Abstract—In the nonchernozem zone of Russia, including the Ryazan oblast, spring camelina is a minor crop like other oilseeds, such as flax, rape, and mustard species. Expansion of this crop is constrained by lack of exhaustive recommendations on its cultivation technology. The aims were to study the productivity characteristics of the Yubilar spring camelina variety and to optimize the main elements of the variety-specific technology (seeding rate and sowing time) for obtaining high and stable yields of oilseeds in this region. The research was conducted at the Kostychev Ryazan State Agrotechnological University on the experimental fields of the Agrotechnopark Education and Scientific Innovation Center in Ryazan raion of Ryazan oblast on gray forest soils. To obtain stable sustainable yields of spring camelina, the crop density at harvesting time should be at least 420 plants/m2, while the optimal density is 400–450 plants m–2. Increasing the seeding rate above 8 million units of viable seeds per 1 ha led to a very dense crop stand, which led to a decrease in both yield and quality of seeds. The seeding rate of 7.0 million viable seeds per 1 ha should be considered optimal for spring camelina. Increasing the rate up to 8.0 million units per 1 ha did not significantly enhance crop productivity but caused an excessive seed discharge, while deteriorating the sprouting quality and increasing the risk of lodging and diseases. The best sowing period in our experiments was the first decade of May.
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Claims 11
Claim · model-written summary
The authors recommend at least 420 plants/m2 at harvest for stable yields.
CamelinaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“To obtain stable sustainable yields of spring camelina, the crop density at harvesting time should be at least 420 plants/m2”
Claim · model-written summary
The authors identify 400–450 plants m–2 as optimal crop density.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the optimal density is 400–450 plants m–2”
t0“To obtain stable sustainable yields of spring camelina”
Claim · model-written summary
Seeding above 8 million viable seeds per hectare produced a very dense stand.
- Treatment
- seeding rate above 8 million units of viable seeds per 1 hae0
- Outcome
- very dense crop stande0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the seeding rate above 8 million units of viable seeds per 1 ha led to a very dense crop stand”
t0“To obtain stable sustainable yields of spring camelina”
Claim · model-written summary
Seeding above 8 million viable seeds per hectare decreased seed yield.
- Treatment
- seeding rate above 8 million units of viable seeds per 1 hae0
- Outcome
- yielde0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the seeding rate above 8 million units of viable seeds per 1 ha led to a very dense crop stand, which led to a decrease in both yield and quality of seeds”
t0“To obtain stable sustainable yields of spring camelina”
Claim · model-written summary
Seeding above 8 million viable seeds per hectare decreased seed quality.
- Treatment
- seeding rate above 8 million units of viable seeds per 1 hae0
- Outcome
- quality of seedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the seeding rate above 8 million units of viable seeds per 1 ha led to a very dense crop stand, which led to a decrease in both yield and quality of seeds”
t0“To obtain stable sustainable yields of spring camelina”
Claim · model-written summary
The authors recommend 7.0 million viable seeds per hectare as the optimal seeding rate.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The seeding rate of 7.0 million viable seeds per 1 ha should be considered optimal for spring camelina”
Claim · model-written summary
Raising the rate to 8.0 million did not significantly enhance productivity.
- Treatment
- rate up to 8.0 million units per 1 hae0
- Outcome
- crop productivitye0
- Direction
- did not significantly enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the rate up to 8.0 million units per 1 ha did not significantly enhance crop productivity”
t0“To obtain stable sustainable yields of spring camelina”
Claim · model-written summary
Raising the rate to 8.0 million caused excessive seed use.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“caused an excessive seed discharge”
t0“To obtain stable sustainable yields of spring camelina”
e1“Increasing the rate up to 8.0 million units per 1 ha”
Claim · model-written summary
Raising the rate to 8.0 million worsened sprouting quality.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“deteriorating the sprouting quality”
t0“To obtain stable sustainable yields of spring camelina”
e1“Increasing the rate up to 8.0 million units per 1 ha”
Claim · model-written summary
Raising the rate to 8.0 million increased lodging and disease risk.
- Treatment
- rate up to 8.0 million units per 1 hae1
- Outcome
- risk of lodging and diseasese0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing the risk of lodging and diseases”
t0“To obtain stable sustainable yields of spring camelina”
e1“Increasing the rate up to 8.0 million units per 1 ha”
Claim · model-written summary
The first decade of May was the best sowing period.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best sowing period in our experiments was the first decade of May”
t0“To obtain stable sustainable yields of spring camelina”
The same questions in other papers
density · yield · CamelinaPositive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.