Factors affecting graniferous sorghum implantation: planting depth and cariopse size
The influence of seed weight, seeding depth and cultivar on grain sorghum establishment was tested in a factorial aplit-plot design. Seeds of three different size and weight from a hybrid and a non hybrid cultivar were planted at 2, 4, 6 and 8 cm seeding depht in orJer to asses the vigour of seedlin...
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| Format: | Online |
| Language: | spa |
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Facultad de Ciencias Agropecuarias
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| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/904 |
| _version_ | 1806647074879438848 |
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| author | Alessanria, Esteban Emilio |
| author_facet | Alessanria, Esteban Emilio |
| author_sort | Alessanria, Esteban Emilio |
| collection | Portal de Revistas |
| description | The influence of seed weight, seeding depth and cultivar on grain sorghum establishment was tested in a factorial aplit-plot design. Seeds of three different size and weight from a hybrid and a non hybrid cultivar were planted at 2, 4, 6 and 8 cm seeding depht in orJer to asses the vigour of seedling in each particular case and the influence each ene had upon establishment and be able to determine the best seeding depth and find out the results of seed size. Upon first and third full leaf expansion, the following were measured and assesed: - total dry weight - dry weight of different components of seedling - leaf area - coleoptile length - mesocotile length and dry weight - percentage of emergence - relative growth rate (R.G.R.) - not assimilation rate (N.A. R. ) -leaf area rate (L.A.R.) Conclusions were: a) Greater seeds produce more uniform stands and more vigorous seedlings. b) Deeper seeding produce thinner and weaker stand of seedlings. c) Regard the length and dry net weight of mesocotile as indicators of the ability of emergence of grain sorghum. It is recommended to seed grain sorghum at a depth osciláting between 2 and 6 cm according to environments and to direct selection towards the obtention of larger kernels to ensure better establishment and higher yields. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-904 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-9042019-06-19T15:29:18Z Factors affecting graniferous sorghum implantation: planting depth and cariopse size Factores que afectan la implantación del sorgo granífero: profundidad de siembra y tamaño el cariopse Alessanria, Esteban Emilio graniferous sorghum sowing cariopse sorgo granífero siembra cariopse The influence of seed weight, seeding depth and cultivar on grain sorghum establishment was tested in a factorial aplit-plot design. Seeds of three different size and weight from a hybrid and a non hybrid cultivar were planted at 2, 4, 6 and 8 cm seeding depht in orJer to asses the vigour of seedling in each particular case and the influence each ene had upon establishment and be able to determine the best seeding depth and find out the results of seed size. Upon first and third full leaf expansion, the following were measured and assesed: - total dry weight - dry weight of different components of seedling - leaf area - coleoptile length - mesocotile length and dry weight - percentage of emergence - relative growth rate (R.G.R.) - not assimilation rate (N.A. R. ) -leaf area rate (L.A.R.) Conclusions were: a) Greater seeds produce more uniform stands and more vigorous seedlings. b) Deeper seeding produce thinner and weaker stand of seedlings. c) Regard the length and dry net weight of mesocotile as indicators of the ability of emergence of grain sorghum. It is recommended to seed grain sorghum at a depth osciláting between 2 and 6 cm according to environments and to direct selection towards the obtention of larger kernels to ensure better establishment and higher yields. Granos de tres tamaños (chico, mediano y grande) de dos cultivares, uno híbrido y el otro no híbrido de sorgo granífero, fueron sembrados a 2, 4, 6 y 8 cm. de profundidad con el fin de evaluar el vigor de la plántala bajo esos distintos tratamientos y su efecto sobre la implantación, para establecer la profundidad óptima de siembra y conocer los efectos del tamaño de la semilla. A la aparición completa de la primera hoja y de la tercera hoja fueron medidos y evaluados una serie de parámetros (peso seco total y de las distintas partes que componen la plántula, superficie foliar, longitud de coleóptilo, longitud y peso seco de mesocótilo, porcentaje de emergencia, índice de crecimiento relativo, índice de asimilación neta y coeficiente de área foliar ) que permitieron arribar a lo siguiente: a) Semillas más grandes dan una mayor población de plántulas , las que resultan más vigorosas y de una mayor capacidad de crecimiento. b) Siembras más profundas originan menor cantidad de plántulas más débiles. e) Considerar a la longitud y al peso seco del mesocótilo como indicador del poder de emergencia del sorgo granífero- En base a ello se recomienda sembrar el sorgo granífero entre 2 y 6 cm. de profundidad según ambientes y orientar la selección en sorgo granífero a la obtención de cariopses más grandes a fin de asegurar una mejor implantación y un mayor rendimiento. Facultad de Ciencias Agropecuarias info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/904 AgriScientia; Vol. 3 (1982); 71-89 AgriScientia; Vol. 3 (1982); 71-89 1668-298X 10.31047/1668.298x.v3.n1 spa https://revistas.unc.edu.ar/index.php/agris/article/view/904/839 |
| spellingShingle | graniferous sorghum sowing cariopse sorgo granífero siembra cariopse Alessanria, Esteban Emilio Factors affecting graniferous sorghum implantation: planting depth and cariopse size |
| title | Factors affecting graniferous sorghum implantation: planting depth and cariopse size |
| title_alt | Factores que afectan la implantación del sorgo granífero: profundidad de siembra y tamaño el cariopse |
| title_full | Factors affecting graniferous sorghum implantation: planting depth and cariopse size |
| title_fullStr | Factors affecting graniferous sorghum implantation: planting depth and cariopse size |
| title_full_unstemmed | Factors affecting graniferous sorghum implantation: planting depth and cariopse size |
| title_short | Factors affecting graniferous sorghum implantation: planting depth and cariopse size |
| title_sort | factors affecting graniferous sorghum implantation planting depth and cariopse size |
| topic | graniferous sorghum sowing cariopse sorgo granífero siembra cariopse |
| topic_facet | graniferous sorghum sowing cariopse sorgo granífero siembra cariopse |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/904 |
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