Regulación química de la floración y fructificación en ajonjolí (Sesamum indicum L.).
The object of this research was to increase the harvested seed in sesame (Sesamum indicum L.). Microscopical observations showed that seeds mature far before the capsules open so it is possible to fasten plant maturity without interrupting seed development. Best results were obtained with the mixture of ethephon 25 ppm + paraquat 3%, both applied at "field harvest point" when plants begin to defoliate at the basis of branches This treatment increased seed (weight) 40% over the control treatment because plants were harvested and threshed the same day, 4 days after treatment, instead of harvested and left to dry out in the field during 2 weeks after the traditional way The treatment makes feasible the mechanical harvest of sesame. Also folcistein (Ergostim) was tried. Applied at a 42% at budding and again 15 days later determined and increase in seed (weight) of 66% over the control treatment. This was due to a better flower setting as shown by counting flowers and fruits at several dates.
| Main Authors: | , |
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| Format: | biblioteca |
| Language: | spa |
| Published: |
San José, Costa Rica Instituto Interamericano de Cooperación para la Agricultura (IICA)
(Jul
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| Subjects: | SESAMUM INDICUM, QUIMICA, FLORACION, FRUCTIFICACION, SESAMO, |
| Online Access: | https://repositorio.catie.ac.cr/handle/11554/12190 |
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| Summary: | The object of this research was to increase the harvested seed in sesame (Sesamum indicum L.). Microscopical observations showed that seeds mature far before the capsules open so it is possible to fasten plant maturity without interrupting seed development. Best results were obtained with the mixture of ethephon 25 ppm + paraquat 3%, both applied at "field harvest point" when plants begin to defoliate at the basis of branches This treatment increased seed (weight) 40% over the control treatment because plants were harvested and threshed the same day, 4 days after treatment, instead of harvested and left to dry out in the field during 2 weeks after the traditional way The treatment makes feasible the mechanical harvest of sesame. Also folcistein (Ergostim) was tried. Applied at a 42% at budding and again 15 days later determined and increase in seed (weight) of 66% over the control treatment. This was due to a better flower setting as shown by counting flowers and fruits at several dates. |
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