Effect of travel speed and suction carried by a pneumatic planter on seed dosage and germination Efecto de la velocidad de avance y de la succión de una sembradora neumática en la dosiï¬cación y germinación de semillas
<p class="Texto" align="justify">The effect of the travel speed and suction carried by the John Deere 7300 pneumatic planterʼs vacuum pump on ICA-305 corn, FUNKʼS HW-1758 sorghum, and Soyica P-34 soybean seeds dosage, germination, and vigor was studied; ï¬ve trave...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional de Colombia
2006-09-01
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| Series: | Acta Agronómica |
| Subjects: | |
| Online Access: | http://revistas.unal.edu.co/index.php/acta_agronomica/article/view/238 |
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| Summary: | <p class="Texto" align="justify">The effect of the travel speed and suction carried by the John Deere 7300 pneumatic planterʼs vacuum pump on ICA-305 corn, FUNKʼS HW-1758 sorghum, and Soyica P-34 soybean seeds dosage, germination, and vigor was studied; ï¬ve travel speeds were assessed (2, 4, 6, 8 and 10 km/h) and two vacuum pump work pressures (-1241.4 and -1738.0 Pa), at the sprocket combination 16/28. Seed weight (g) supplied and seed of variance distribution in two lineal meters, seed feasibility by germination and vigor tests, were determined. Analysis of variance for means of the variable and four regression models (linear, quadratic, cubic and quadruple) were applied. The linear regression model selected to explain correlation lead to conclude that travel speed of plant equipment do not affect seed dosage at two working pressures. No effect was found of planting work pressure on seed dosage. No effect was found of planting work pressure and travel speed on corn, sorghum, and soybean seed germination and germinated plantules vigor.</p><p class="Texto" align="justify"><strong>Key words:</strong> corn, sorghum and soybean planting; pneumatic planter; planting travel speed; planting work pressure; seeds dosage and germination.</p><br><p class="Texto" align="justify">Se estudi&oacute; el efecto en ma&iacute;z (ICA-305), sorgo (FUNKʼS HW-1758) y soya (Soyica P-34), de cinco (5) velocidades de marcha (2, 4, 6, 8 y 10 km/h) y dos presiones de trabajo de la bomba de vac&iacute;o (-1241.4 y -1738.0 Pa); en la relaci&oacute;n de pi&ntilde;ones 16/28 de la caja de cambios de la sembradora neum&aacute;tica John Deere 7300. Se determin&oacute; el peso dosiï¬cado y la distribuci&oacute;n de la semilla en dos metros lineales; la viabilidad mediante pruebas de germinaci&oacute;n y el vigor de pl&aacute;ntulas germinadas. Se emple&oacute; an&aacute;lisis de varianza para las medias de las variables y se probaron cuatro modelos de regresi&oacute;n (lineal, cuadr&aacute;tico, c&uacute;bico y cu&aacute;rtico). En el modelo de regresi&oacute;n lineal elegido para examinar la correlaci&oacute;n velocidad/dosiï¬caci&oacute;n, se encontr&oacute; que el aumento de la velocidad de avance del equipo de siembra no afect&oacute; la dosiï¬caci&oacute;n de semillas en las dos presiones de trabajo. No se encontr&oacute; efecto de la velocidad de avance de la sembradora sobre la germinaci&oacute;n de las semillas y el vigor de las pl&aacute;ntulas; ni de las dos presiones de trabajo sobre la dosiï¬caci&oacute;n, germinaci&oacute;n de las semillas y vigor de las pl&aacute;ntulas.</p><p class="Texto" align="justify"><strong>Palabras claves:</strong> siembra de ma&iacute;z, sorgo y soya; sembradora neum&aacute;tica; velocidad de siembra; presi&oacute;n de trabajo; dosiï¬caci&oacute;n y germinaci&oacute;n de semillas.</p> |
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| ISSN: | 0120-2812 |