Resumo
Three locals corn varieties and two commercial hybrids were studied at ten different places, during three consecutive years, in comparative trials. Randomized blocks, and Latin square design were used in plots with 30 or 15 square meters. Hybrid H.3531 was more productive in localities with poor soils while in places with rich soils the Agroceres hybrid was better than the open pollinated varieties. No significant difference between these hybrids was observed. In these trials, hybrids H.3531 and Agroceres produced, on the average, about 400 kg/ha more than the open pollinated varieties, Cateto and Armour, with which they have been compared.
Melhoramento do milho. IV Comportamento regional de variedades e híbridos(1 (1 ) Trabalho apresentado à Segunda Reunião Latino-American a de Fitogeneticistas e Fitoparasitologistas, realizada em São Paulo, Piracicaba e Campinas, de 31 de março a 8 de abril de 1952. )
G. P. Viegas(2 (2 ) Agradecemos aos senhores chefes das estações experimentais, onde foram conduzidos os ensaios em aprêço, a colaboração prestada durante a execução dêste trabalho. Somos particularmente gratos ao Eng. Agr. Hermano Vaz de Arruda, da Secção de Técnica Experimental e Cálculo, pela análise estatística dos resultados. )
Engenheiro agrônomo, Secção de Cereais e Leguminosas, Instituto Agronômico de Campinas
SUMMARY
Three locals corn varieties and two commercial hybrids were studied at ten different places, during three consecutive years, in comparative trials. Randomized blocks, and Latin square design were used in plots with 30 or 15 square meters. Hybrid H.3531 was more productive in localities with poor soils while in places with rich soils the Agroceres hybrid was better than the open pollinated varieties. No significant difference between these hybrids was observed. In these trials, hybrids H.3531 and Agroceres produced, on the average, about 400 kg/ha more than the open pollinated varieties, Cateto and Armour, with which they have been compared.
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LITERATURA CITADA
- 1. Brieger, F. G. A distribuição do milho indígena e comercial. Primera Asemblea Latino Americana de Fitogenetistas. Folheto Misc. Sec. Agr. Gan. México 3 : 90-95. 1950.
- 2. Krug, C. A., G. P. Viegas e L. Paolieri. Híbridos comerciais de milho. Bragantia 3 : 367-552. 1943.
- 3. Martins, R. Cruz. Em Relat. Inst. agron. Campinas. 1926-27 e 1927-28: 95-96. 1934.
- 4. Setzer, J. Em Os solos do Estado de São Paulo. Inst. brasil. Geog. Estat. Rio de J. 1-387, 1949.
- 5. Viegas, G. P., C. A. Krug e M. P. Penteado. Melhoramento do milho. II, Ensaios de híbridos. Bragantia 12 : 241-252. 1952.
Datas de Publicação
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Publicação nesta coleção
25 Maio 2010 -
Data do Fascículo
Set 1952