Evaluación de la ecofisiología y resistencia a herbicidas de la rottboellia cochinchinensis y su control en maíz
This research work was carried out in the second half of 2011, on the grounds of the Farm "San Pablo" belonging to the Faculty of Agricultural Sciences at the Technical University of Babahoyo in the area of field and greenhouse, located in the 7.5 km road Babahoyo - Montalvo, with geograph...
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| Format: | bachelorThesis |
| Language: | spa |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://dspace.utb.edu.ec/handle/49000/979 |
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Add Tag | Summary: | This research work was carried out in the second half of 2011, on the grounds of the Farm "San Pablo" belonging to the Faculty of Agricultural Sciences at the Technical University of Babahoyo in the area of field and greenhouse, located in the 7.5 km road Babahoyo - Montalvo, with geographical coordinates 01 º 49 '15 "south latitude and 79 º 32' W and an elevation of 8 m This area has a humid tropical climate, the average annual temperature of 25.6 º C, rainfall of 2791.4mm., relative humidity of 76% and 804.7 hours of heliophany. The clay loam suelo is regular and flat topography, a trial was testing Nicosulfuron herbicide, atrazine, 2,4 D Amine and Pendimentalin in the Rottboellia cochinchinensis, the control is use the genetic material of seed, certified seed of hybrid corn "INIAP 553", in order to evaluate the effects of herbicide application Nicosulfuro, atrazine, 2,4 D Amine and Pendimentalin, applied at 15 days after sowing, to identify resistance in the herbicide mentioned Rottboellia cochinchinensis, so does the economic analysis of grain yield considering the cost of treatments. The trial was conducted under the design "complete randomized blocks' with four replications and eight treatment field and greenhouse work with the design entirely to chance. The do semo is were Nicosulfuron 40gr/ha herbicides, atrazine Nicosulfuron 40gr/ha + 3kg/ha, Pendimentalin 3lts/ha Nicosulfuron 40gr/ha +, D + 2.4 Nicosulfuron 40gr/ha 1lt/ha Amina, Amina Atrazine 3kg/ha +2.4 D 1lt/ha, Atrazine 3kg/ha + 2.4 D + Nicosulfuron 40gr/ha 1lt/ha Amina and two manual control (weeding y 65 15-45 days) and the control variables toases absolute. They were subjected to analysis of variance, and test was used for statistical significance of Duncan al5% chance........ |
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