“Comparativo de rendimiento de variedades y lineas promisorias de arroz (oryza sativa) bajo riego en el Alto Mayo-San Martín

• Autor: Bocanegra Bardález, Karina
• Formato: tesis de grado
• Fecha de Publicación: 2002
• Institución: Universidad Nacional de San Martin - Tarapoto
• Repositorio: UNSM-Institucional
• Lenguaje: español
• OAI Identifier: oai:repositorio.unsm.edu.pe:11458/718
• Enlace del recurso: http://hdl.handle.net/11458/718
• Nivel de acceso: acceso abierto
• Materia: Comparativo; rendimiento; variedades; lineas; promisorias; arroz; oryza; sativa; bajo; riego; Alto; Mayo

The work investigation present was carried out with the objectives of to increase and to stabilize the yields, the quality grain, as well as the resistance to plagues and illnesses, mainty Pyricularia grisea, the virus of the white Leaf like its vector Tagasodes orizicolus and its profitability. tt was executed in Mr. Bernardo Vilchez Palmer, located in the Shica, Km, 484 borcfer highway Tarapoto-Olmos trees, in the south latitude 06º 03 ', Longitude west 77º 09 ' and 842 m.s.n.m in the district of Calzada, county of Moyobamba and department of San Martin. lt was driven under the Design randomized,comptete of block, with 5 treatments and in three repetitions. lt was evatuated: ilfnesses in seedling and definitive field, population and damage plagues of insects, vegetative devetopment and characteristics genetic, and the profitability. The variety Capirona, Line 102, variety High Forest and line 14 with yield of 7 889; 7 792; 7 720 and 7085 Kg/ha showed better behavior for the area of the High May. In the quatity milt the varieties forest, INIA Bijao, Capirona and the line 14 registered 61,93, 61,80, 60, 17 and 59,53 % entirely grain. All the varieties and studied lines showed resistance to the illnesses: bumt, Carmelite, cercosporiosis stains and scalded of the rice. The have Une 14 shown their susceptibility to the virus of the white leaf of the rice with 8,5% of affected plants, In the net profitability of production the best were: the varieties Capirona, High Forest and the line 102 with relationship of benefit cost of 67,45, 68,25 and 68,92%.