Estabelecimento de plantas e produtividade de grãos de duas cultivares de arroz no sistema pré-germinado

Rosemeire Helena da Silva; Renato Luis Bertoni Lauretti; Carlos Alexandre Costa Crusciol; Marcelo Andreotti; José Ricardo Pupo Gonçalves

doi:10.4025/actasciagron.v24i0.2391

establishment and yield of rice in pre-germinated system

Authors

Rosemeire Helena da Silva Unesp Author
Renato Luis Bertoni Lauretti UNESP Author
Carlos Alexandre Costa Crusciol UNESP Author
Marcelo Andreotti UNIOESTE Author
José Ricardo Pupo Gonçalves UNESP Author

DOI:

https://doi.org/10.4025/actasciagron.v24i0.2391

Keywords:

arroz irrigado por inundação, manejo da água, solo de várzea, cultivares de arroz

Abstract

The purpose of the present research was to study the effects of different water management during the sowing, in pre-germinated system, on the establishment of two rice cultivars and the effects on yield components and rice grains production. The experiment was conducted in amianthus cement boxes of 500 liters of capacity with alluvial soil with two rice cultivars (IAC 102 e Epagri 108) and three water managements (1 - sowing in water and maintenance of constant water level; 2 - sowing in water and water retreat after three days; 3 - sowing in water and natural evaporation). Taking out water from the field, three days after sowing also resulted in a better seedling establishment. Water level management by natural evaporation resulted in the highest number of total spikelets per panicle. The grain yield was not affected by water management. Yield of IAC 102 presented higher number of plump spikelets per panicle, relating to greater grain yield

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Author Biography

Carlos Alexandre Costa Crusciol, UNESP

Possui graduação em Agronomia pela Faculdade de Engenharia Campus de Ilha Solteira Unesp (1992), mestrado em Agronomia (Agricultura) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1995) e doutorado em Agronomia (Agricultura) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1998). Atualmente é professor adjunto (livre-docente) da Universidade Estadual Paulista Júlio de Mesquita Filho. Tem experiência na área de Agricultura, com ênfase em Fertilidade do Solo, Adubação, fisiologia aplicada, sistemas de produção agrícola e rotação de culturas, atuando principalmente nos seguintes temas: arroz, amendoim, cana-de-açúcar, corretivos de acidez e adubacao, silício na agricultura, semeadura direta, integração lavoura-pecuária Currículo Lattes

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PDF (Portuguese)

Published

2008-04-30

Issue

Vol. 24 (2002)

Section

Agronomy

License

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How to Cite

establishment and yield of rice in pre-germinated system. (2008). Acta Scientiarum. Agronomy, 24, 1413-1418. https://doi.org/10.4025/actasciagron.v24i0.2391