Variación morfoagronómica y productiva de líneas F2 de arroz (Oryza sativa L.), derivadas de cruces con un progenitor femenino resistente al herbicida imazetapir
SUMMARY This experiment was carried out on the premises of the Experimental Farm "San Pablo" of the Faculty of Agricultural Sciences, at the Babahoyo Technical University, located at KM 7.5 of the Babahoyo – Montalvo road. The main objective of the study was to evaluate the morphoagronomic...
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| Format: | bachelorThesis |
| Udgivet: |
2020
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| Online adgang: | http://dspace.utb.edu.ec/handle/49000/8491 |
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Tilføj Tag | Summary: | SUMMARY This experiment was carried out on the premises of the Experimental Farm "San Pablo" of the Faculty of Agricultural Sciences, at the Babahoyo Technical University, located at KM 7.5 of the Babahoyo – Montalvo road. The main objective of the study was to evaluate the morphoagronomic and productive variation of F2 lines of rice (Oryza sativa L.), derived from the crosses with a female progenitor resistant to imazetapir herbicide. The evaluated variables were: Vigor, Flowering, Vegetative Cycle, Plant Height (cm), Panicles per Plant, Panicle Length (cm), Grains per Panicle, Sterility %, Weight of 1000 Grains (g), Yield (g/Plant), Grain Shape, Grain Length and Width (mm). Based on the results obtained, it was observed that all treatments had a high variability, since in all variables there are highly significant differences. With respect to yield (g/plant), it was determined that the BR-101/G-113, BR-101/CA-102, FI-104, BR-101/G-112 and BR-101 progenies were statistically higher than other treatments, with an average of 41.15; 41,87; 42,70; 46.47 and 46.0 g/plant. The best progenies with superior agronomic and productive characteristics were selected: One of the most important agronomic characteristics was the number of panicles presented by br-101/FE-103 progenies, BR-101/G-112, BR-101/CA-102 and BR-101/G-113, selected for presenting ranges from 18.5 to 23.73 panicle/plant, although they were statistically different, were the progenies that reached the highest averages. The most productive progenies were selected, including BR-101/G-111, BR-101/FI-105, BR-101/SH-108, BR-101/FI-106, BR-101/G-113, BR-101/CA-102 and BR-101/G-112, for presenting ranges from 38.32 to 46 g/plant while statistically similar. |
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