Sombreamento dos cafezais IV - resultados de mais dois biênios: 1963/1964 - 1965/1966

Godoy Junior, C.; Graner, E.A.

doi:10.1590/S0071-12761967000100001

Resumo

This paper deals with data obtained in 1963, 1964, 1965 e 1966 in shaded and unshaded coffee plots at Piracicaba, São Paulo, Brazil. The results can be summarized as follows: a. the production, in shaded and unshaded plots, did not show differences statisticaly significant; b. the percentage of coffee berry borer infestations was higher in shaded plots as compared with unshaded ones; c. the percentage of green, ripened and dry fruits depends on the year and on the harvest time.

Cadeira de Agricultura

SUMMARY

This paper deals with data obtained in 1963, 1964, 1965 e 1966 in shaded and unshaded coffee plots at Piracicaba, São Paulo, Brazil.

The results can be summarized as follows: a. the production, in shaded and unshaded plots, did not show differences statisticaly significant;

b. the percentage of coffee berry borer infestations was higher in shaded plots as compared with unshaded ones;

c. the percentage of green, ripened and dry fruits depends on the year and on the harvest time.

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LITERATURA CITADA

Recebido para publicação em 15 de fevereiro de 1967

GODOY JÚNIOR, C. e E.A. GRANER, 1961 - Sombreamento dos cafèzais. II - Resultados do 4ş biênio (1959/1960). Anais da E.S.A. "Luiz de Queiroz". 18:62-75.
GOMES, F. PIMENTEL, 1954 - A comparação entre médias na análise da variância. Anais da E.S.A. "Luiz de Queiroz" ll:1-12.
GRANER, E.A. e C. GODOY JÚNIOR, 1960 - Sombreamento dos cafèzais. I - Resultados de três ciclos bienais (1953/1958) obtidos na E.S.A. "Luiz de Queiroz". Anais da E.S.A. "Luiz de Queiroz". 16:139-165.
GRANER, E.A. e C. GODOY JÚNIOR, 1962 - Sombreamento dos cafèzais. III - Resultados do 5ş biênio (1961/1962). Anais da E.S.A. "Luiz de Queiroz". 19:283-295.
SNEDECOR, G.W., 1946 - Statistical Methods. The Collegiate Press, Inc., Ames, Iowa.