actividad del azimsulfuron + metsulfuron-metil en cyperus rotundus l. bajo condiciones controladas azimsulfuron + metsulfuron-metil activity in cyperus rotundus l. under controlled conditions
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ID: 211998
2002
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Abstract
Se realizaron tres experimentos bajo condiciones controladas de invernadero con el fin de evaluar la actividad de la mezcla herbicida formulada azimsulfuron (14,0 g i.a./Ha)+ metsulfuron metil (4,0 g i.a./Ha) en aplicaciones foliares o al suelo sobre plantas de coquito (Cyperus rotundus L.). Plantas de coquito fueron tratadas en tres estados de desarrollo: plántula, plantas juveniles y plantas maduras. El número y materia seca de brotes aéreos, y la producción de estructuras subterráneas (tubérculos y bulbos basales) 28 días después del tratamiento fue reducido en los tres estados de desarrollo<br />de la maleza. Sin embargo, plantas en estado de plántula fueron las más susceptibles. En otro experimento se trataron plantas maduras que ya habían producido un sistema subterráneo de cadenas de rizomas, tubérculos y bulbos. Tres semanas después del tratamiento los bulbos y tubérculos fueron separados y sembrados en arena. La brotación de estas estructuras vegetativas fue casi completamente inhibida, indicando que el herbicida se transloca hasta el sistema subterráneo. Se comprobó que la mezcla herbicida no tiene efecto preemergente sobre la brotación de tubérculos de la maleza sembrados a 1 y 3 cm de profundidad. El máximo valor registrado de inhibición<br />de la brotación fue de solo 11%. <br />
Three experiments were carried out under glasshouse conditions with the aim of evaluating the activity of azimsulfuron (14,0 g i.a./ Ha)+ metsulfuron methyl (4,0 g<br />La./Ha.) herbicide mixture in foliar and soil treatments on purple nutsedge (Cyperus rotundus L.). Purple nutsedge plants were treated in three development stages: Seedling,<br />young plants and mature plants. Shoot and underground<br />structures (tubers and basal bulbs) number and dry matter<br />28 days after treatment was reduced in the three stages<br />of development. However, seedling plants were the most<br />sensitive. In other experiment mature plants that had already produced an underground system of rhizome chains, tubers and bulbs were treated with the herbicide mixture. Three weeks after treatment bulbs and tubers were separated and sown in sand. Bulb and tuber sprouting was almost completely inhibited, indicating that the herbicide translocated until the underground system. On the other hand, the herbicide mixture doesn't have any soil activity on purple nutsedge tubers. In this case, the maximum sprout tuber inhibition was 11 percent. <br />
Three experiments were carried out under glasshouse conditions with the aim of evaluating the activity of azimsulfuron (14,0 g i.a./ Ha)+ metsulfuron methyl (4,0 g<br />La./Ha.) herbicide mixture in foliar and soil treatments on purple nutsedge (Cyperus rotundus L.). Purple nutsedge plants were treated in three development stages: Seedling,<br />young plants and mature plants. Shoot and underground<br />structures (tubers and basal bulbs) number and dry matter<br />28 days after treatment was reduced in the three stages<br />of development. However, seedling plants were the most<br />sensitive. In other experiment mature plants that had already produced an underground system of rhizome chains, tubers and bulbs were treated with the herbicide mixture. Three weeks after treatment bulbs and tubers were separated and sown in sand. Bulb and tuber sprouting was almost completely inhibited, indicating that the herbicide translocated until the underground system. On the other hand, the herbicide mixture doesn't have any soil activity on purple nutsedge tubers. In this case, the maximum sprout tuber inhibition was 11 percent. <br />
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cilia2002agronomaactividad
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| Authors | ;Fuentes Cilia;Ferrucho Julian |
| Journal | Indian journal of pediatrics |
| Year | 2002 |
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