Resumo
In this experiment it was attempted to find better row spacing (0,20 m, 0,40 m and 0,60 m) and seed rate (3 and 6 grams of seeds/m) to be used in rice. The ordinary flooding was used as irrigation. Four varieties with different flowering periods were used: "Pratão" and "Iguape Agulha" are late varieties (150 days); "Batatais", "Dourado Precoce" early varieties (100 days). These two early varieties produce two harvests by ratooning. The data showed that the late varieties gave a better yeld on a single crop, but the greatest annual yeld by area was obtained when the ratooning was used. As far as amount of seed is concerned the data showed that the better yelds were obtained with 3 grams of seeds.
Arroz: ensaio fatorial variedade x espaçamento x densidade* * Resumo dêste trabalho foi apresentado a XV Reunião Anual de SBPC (Sociedade Brasileira para o Progresso da Ciência), realizado no I.A.C., em julho de 1963.
Eujandir W. de Lima Orsi; O. Pereira Godoy
Cadeira de Agricultura (ESALQ)
SUMMARY
In this experiment it was attempted to find better row spacing (0,20 m, 0,40 m and 0,60 m) and seed rate (3 and 6 grams of seeds/m) to be used in rice. The ordinary flooding was used as irrigation.
Four varieties with different flowering periods were used: "Pratão" and "Iguape Agulha" are late varieties (150 days); "Batatais", "Dourado Precoce" early varieties (100 days). These two early varieties produce two harvests by ratooning.
The data showed that the late varieties gave a better yeld on a single crop, but the greatest annual yeld by area was obtained when the ratooning was used.
As far as amount of seed is concerned the data showed that the better yelds were obtained with 3 grams of seeds.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
LITERATURA CITADA
Recebido para publicação em 20 de maio de 1967.
- LIMA ORSI, Eujandir W. de e O. Pereira Godoy- 1961 Ensaio preliminar comparativo de duas variedades precoces: Batatais e Dourado Precoce, (não publicado).
- GRANER, E.A.-1952 Como Aprender Estatística. Biblioteca Agronômica Melhoramentos nş 13. Edições Melhoramentos. S. Paulo.
- PIMENTEL GOMES, F.- 1963 Curso de Estatística Experimental, 2a. edição. Escola Superior de Agricultura "Luiz de Queiroz".
Datas de Publicação
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Publicação nesta coleção
13 Jun 2012 -
Data do Fascículo
1967
