Maturação e qualidade fisiológica da semente de algodoeiro (Gossypium hirsutum L.)

Autores

  • Élio José Alves Universidade Federal de Viçosa
  • José Carlos Enrique Oliveira Begazo Universidade Federal de Viçosa
  • Claudio Manuel da Silva Universidade Federal de Viçosa
  • Carlos Sigueyuki Sediyama Universidade Federal de Viçosa

Palavras-chave:

maturação fisiológica, qualidade da semente, capacidade germinativa, vigor da semente, teor de umidade

Resumo

A study of physiological maturation, germinability and vigor of seeds of two cultivars of cotton (Gossypium hirsutum L.) — <IAC-13-1» and «IPEACO-SL 7» — was carried out at the Federal University of Vicosa, Vicosa, Minas Gerais.

Flowers were tagged in the upper, middle and lower thirds of the plant at the time of fertilization to keep track of the age of the seeds, Seeds were collected every five days for 75 days and were analyzed for quality.

Physiologicalmaturity of seeds occurred from 65 to 75 days after tagging. At this time seed moisture averaged from 20 to 40%.

Seeds procuced normal seedlings 40 days after tagging and thereafter, and the germination rate was at a maximum between 65 and 75 days in all thirds of the plants.

Seeds presented some vigor 40 days after tagging and the maximum vigor was show between 70 and 75 days.

In the first count only seeds from the lower third of «IPEACO-SL 7» showed maximum vigor at 70 to 75 days. Seeds from all thirds of «IAC-13-1» and the middle third of «IPEACO-SL 7» did not reach maximum vigor in the period studied. 

Referências

BOZHKOVA, Y. Investigation of the germinability of the progeny procedure from seed taken from different parts of the cotton plant. Resteniev» dni Nauki, Bulgaria, 8 (7): 85-91. 1971. In: FIELD CROP ABSTRACTS, London, 26 (2): 9, 1973 (Abstract 900).

BRASIL. Ministério da Agricultura. Regras para Análise de Sementes, (s1.), 1967. 120 p.

CALDWELL, W.P. Preharvest environmental effects upon cotton seed quality deterioration. In: SHORT COURSE SEEDSMEN, Mississipi State University, 1962. p. 96-98.

CARVALHO, N.M. de. Maturação de sementes de algodão, (Gossypium hirsutum L.). Semente, 0: 4-7. 1973.

DELOUCHE, J.C. Seed maturation. In: Handbook of seed technology. Mississipi State University, 1971. p 17-23.

DELOUCHE, J.C. & W.P. CALDWELL, Sced vigor and vigor testes. In: ãã'IORT COURSE FOR SEEDSMEN, Mississipi State University, 1962. p 141-

ISELY, D. Vigour Tests: In: ISELY, D. Annual Meeting, 47 th, Mississipi, 1957. Proceedings, Association of Official Seed Analyst, Richmond, 1957. p. 177-182.

NQOOGLE, G.R. Cotton seed quality. Cotton Growing Review 50 (1): 43-62. 1973.

PARKER, R.E. & CALDWELL, W.P. Prolonged exposure demages cottonseed and lint. Mississipi Farm Research 30(7): 6-8. 1967.

POPINIGIS, F. Fisiologia de sementes. Brasilia, Ministério da Agricultura, AGIPLAN, 1974. 78 p.

SIMPSON, D.M. Dormancy and maturity of Cottonseed. Journal of Agricultural Research 50 (5): 429-434. 1935.

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Publicado

1976-10-30

Como Citar

Alves, Élio J., Oliveira Begazo, J. C. E., da Silva, C. M., & Sigueyuki Sediyama, C. (1976). Maturação e qualidade fisiológica da semente de algodoeiro (Gossypium hirsutum L.). Revista Ceres, 23(129), 397–406. Recuperado de https://ojs.ceres.ufv.br/ceres/article/view/6877

Edição

v. 23 n. 129 (1976)

Seção

ARTICLE

Licença

Creative Commons License
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.

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