Abstract
Many of the perennial prairie grasses that are used in restoration plantings in the central Great Plains have seed appendages such as awns and pubescence that make seed flow through planters difficult. We have developed a rotary seed processor that efficiently processes small breeder or experimental lots of seed that can then be easily planted with small plot cone planters or conventional planters. The processor consists of a metal cylinder that is lined with corrugated rubber and a rotating center shaft with rubber paddles. Processing can be controlled by varying shaft rotation speed and processing time. A top-opening, full length trap door allows for easy loading and the cylinder can be inverted to dump out processed seed. The processor has been used successfully for several years on big bluestem [Andropogon gerardii Vitman], indiangrass [Sorghastrum nutans (L.) Nash], little bluestem [Schizachyrium scoparium (Michaux) Nash], prairie sandreed [Calamovilfa longifolia (Book.) Scribner], and blue grama [Boureloua gracilis (Willd. ex Kunth) Lagascaex Griffiths] seed. By removing seed appendages and pubescence, seed bulk is reduced and seed density and flow ability are improved. The processing operation is relatively gentle and seed germination per unit weight of seed is improved. Semillas de muchos pastos perennes que son usados en la restauracion de praderas en las Grandes Planicies centrales, poseen accesorios coma aristas y/o pubescencias que difcultan el paso de las semillas a traves de sembradoras convencionales. Para efectuar siembras con btas semillas, las semhradoras tendrian que estar especificamente diieiiadas para plantar material relativamente voluminoso y sin peso, al menos que las semillas scan procesadas para remover tales cuerpos accesorios. Nosotros hemos desarrollado un procesador de semilla que process eticientemente pequeiios lotes de semillas con fries de reproduction de germoplasma o experimentales. De &a manera, las semillas podran ser facilmente sembrados con un sembrador de cone para pequefias parcelas, o con sembradoras convencionales. El procesador consiste de un cilindro o tambor de metal forrado en su interior con hule corrugado. Paletas de hule adjuntas a un eje que atraviesa el cilindro y que son rotadas por polea, golpean las semillas. El proceso puede ser controlado variando el tamaiio de polea y la velocidad de rotacibn, y por el tiempo que la semilla permanece rotando dentro de la unidad. El cilindro cuenta con una puerta en la parte superior que permite el facil acceso de la semilla dentro de la unidad. Cuando la semilla ha sido procesada, el cilindro puede ser invertido para retirar la semilla de la unidad. El procesador ha sido exitosamente usado por varios aiios en big bluestem (Andropogon gerardii Vitman), indiangrass [Sorghastrum nutans (L.) Nash], little bluestem [Schizachyrium scoparium (Michx.) Nash], prairie sandreed [Calamovilfa longifolia (Hook.) Scribn.], and blue grama [Bouteloua gracilis (Wiid. ex Kunth) Lagasca ex Griffiths] seed. La remocion de las aristas y pubescencias disminuyen el volumen de la semi&, y la densidad y flujo dentro de la sembradora son entonces mejorados. El proceso de operation es relativamente suave para las semillas y la genninacion por unidad de peso es mejorada.
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Claims 10
Claim · model-written summary
The rotary processor efficiently processes small breeder or experimental seed lots for planting.
Not reportedComparatorValue
Verbatim
e0“We have developed a rotary seed processor that efficiently processes small breeder or experimental lots of seed that can then be easily planted with small plot cone planters or conventional planters”
t0“Prairie Grasses”
Claim · model-written summary
Processing can be controlled by shaft speed and processing time.
Not reportedComparatorValue
Verbatim
e0“Processing can be controlled by varying shaft rotation speed and processing time”
t0“Prairie Grasses”
Claim · model-written summary
The processor has been used successfully on big bluestem seed.
Not reportedComparatorValue
Verbatim
e0“The processor has been used successfully for several years on big bluestem [Andropogon gerardii Vitman]”
t0“Prairie Grasses”
Claim · model-written summary
The processor has been used successfully on indiangrass seed.
Not reportedComparatorValue
Verbatim
e0“on big bluestem [Andropogon gerardii Vitman], indiangrass [Sorghastrum nutans (L.) Nash]”
t0“Prairie Grasses”
e1“The processor has been used successfully for several years”
Claim · model-written summary
The processor has been used successfully on little bluestem seed.
Not reportedComparatorOutcomeValue
Verbatim
e0“little bluestem [Schizachyrium scoparium (Michaux) Nash]”
t0“Prairie Grasses”
Claim · model-written summary
The processor has been used successfully on prairie sandreed seed.
Not reportedComparatorOutcomeValue
Verbatim
e0“prairie sandreed [Calamovilfa longifolia (Book.) Scribner]”
t0“Prairie Grasses”
Claim · model-written summary
The processor has been used successfully on blue grama seed.
Not reportedComparatorOutcomeValue
Verbatim
e0“blue grama [Boureloua gracilis (Willd. ex Kunth) Lagascaex Griffiths] seed”
t0“Prairie Grasses”
Claim · model-written summary
Removing appendages and pubescence reduces seed bulk.
- Taxon
- Prairie Grassest0
- Treatment
- removing seed appendages and pubescencee0
- Outcome
- seed bulke0
- Direction
- reducede0
Not reportedComparatorValue
Verbatim
e0“By removing seed appendages and pubescence, seed bulk is reduced and seed density and flow ability are improved”
t0“Prairie Grasses”
Claim · model-written summary
Removing appendages and pubescence improves seed density and flow ability.
- Taxon
- Prairie Grassest0
- Treatment
- removing seed appendages and pubescencee0
- Outcome
- seed density and flow abilitye0
- Direction
- improvede0
Not reportedComparatorValue
Verbatim
e0“By removing seed appendages and pubescence, seed bulk is reduced and seed density and flow ability are improved”
t0“Prairie Grasses”
Claim · model-written summary
Processing improves seed germination per unit seed weight.
- Taxon
- Prairie Grassest0
- Treatment
- processing operatione0
- Outcome
- seed germination per unit weight of seede0
- Direction
- improvede0
Not reportedComparatorValue
Verbatim
e0“The processing operation is relatively gentle and seed germination per unit weight of seed is improved”
t0“Prairie Grasses”