A seleção do sorgo vassoura

Resumo

The State of São Paulo imports straw of Sorghum for its broom industry when this material could be satisfactorily produced in the State. The principal hereditary defects of the broom-corn which could be eliminated to a certain extent by selection are goose neck panicles, twisted panicles and stemmy panicles. Various introduced varieties were subjected to comparative field tests along with a local variety which came years ago from Argentine. This variety superseeded all the others when subjected to selection. All the lineages derived from it when tested with the primitive and recently introduced stock revealed far superior in many respects. Seeds of these lineages were turned over to the competent Department of the Instituto Agronómico to be increased in guantity and then distributed to farmers. In this work the X² test is recommend for analysis and interpretation of the results.

A seleção do sorgo vassoura

G. P. Viégas

SUMMARY

The State of São Paulo imports straw of Sorghum for its broom industry when this material could be satisfactorily produced in the State.

The principal hereditary defects of the broom-corn which could be eliminated to a certain extent by selection are goose neck panicles, twisted panicles and stemmy panicles.

Various introduced varieties were subjected to comparative field tests along with a local variety which came years ago from Argentine. This variety superseeded all the others when subjected to selection. All the lineages derived from it when tested with the primitive and recently introduced stock revealed far superior in many respects. Seeds of these lineages were turned over to the competent Department of the Instituto Agronómico to be increased in guantity and then distributed to farmers.

In this work the X² test is recommend for analysis and interpretation of the results.

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LITERATURA CITADA

4. Idem, idem 24: 21. 1927.

5. " " 26: 21. 1929.

6. " " 28: 21. 1931.

7. " " 30: 20. 1933.

8. " " 31: 20. 1934.

9. " " 32: 22. 1935.

10..... 33: 35. 1936.

11. " " 35: 37. 1938.

12..... 36:14. 1939.

13. " " 37:15. 1940.

• 1.  Krug, C. A. Relatório da Secção de Genética 1933-1934 : Inst. Agronômico do Est. S. Paulo. Não publicado.
• 2.  Krug, C. A. Sorgo vassoura. Relatório do Inst. Agronômico do Est. S. Paulo. 1934-1935 : 32-35. 1935.
• ³
    Anônimo. Estatística do comércio do Porto de Santos com os países estrangeiros. Diretoria de Estat. , Ind. e Com. da Secret, de Agr. do Est. S. Paulo. 23: 20. 1926.
• 14.  Anônimo. Estatística industrial do Estado de S. Paulo. Diretoria de Estat. Ind. e Com. 1937 : 64-65. 1939.
• 15.  Cuba, P. Sorgo vassoura. Bol. Inst. Agr. do Est. S. Paulo 4: 1-9. 1937.
• 16.  Park, J. B. Selection in broom corn. Jour, of Heredity 14:213-219. 1923.
• 17.  Snedecor, G. W. Em Statistical methods. Pgs. XIII+41. Collegiate Press. Inc. Ames. Iowa. 1937.
• 18.  Goulden, C. H. Em Methods of statistical analysis. Pgs. VIII+277. John Wiley & Sons. Inc. N. York, 1939.
• 19.  Brieger, F. G. - Em Tábuas e fórmulas para estatística. Cia. Melhoramentos de S. Paulo, pgs. 1-46. 1937.
• 20.  Brieger, F. G. Sôbre o "X² test". Jour, de Agronomia 3:103-110. 1940.

Datas de Publicação

• Publicação nesta coleção
  06 Jul 2010
• Data do Fascículo
  1941