Influence of changed temperature and gibberellins treatments on papaya seeds germination.

Authors

  • Sarita Leonel Prefeitura Municipal de Itatinga - SP
  • Elizabeth Orika Ono Universidade Estadual Paulista
  • João Domingos Rodrigues Universidade Estadual Paulista

DOI:

https://doi.org/10.5433/1679-0359.1998v19n1p68

Keywords:

Caricapapaya L., Gibberellins, Seeds, Temperature, Germination.

Abstract

The influence of changed temperature and treatments with gibberellins were studied on papaya seeds (Carica papaya L.) cv Sunrise Solo germination. The seeds were extracted from ripe fruits. washed, dried and sprayed substrate or immersed during 24 hours with GA3 at 0,50. 100, 150 and 200 mg. L. The temperatures studied were constant at 25°C and changed at 20 and 30°C. The results showed that the changed temperature gave the best seeds germination and the germination percentage was highest (53.25%) in seeds sprayed with gibberellic acid at 100 mg.L. during 34,4 medium days intervals.

 

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Author Biographies

Sarita Leonel, Prefeitura Municipal de Itatinga - SP

Engenheira Agrônoma/Doutora, Secretaria da Agricultura e Abastecimento, Coordenadora de Assistência Técnica Integral, Itatinga (SP)

Elizabeth Orika Ono, Universidade Estadual Paulista

 

Bióloga, Professora Assistente/Doutora, Departamento de Botânica, Instituto de Biociências. Universidade Estadual Paulista - UNESP, CEP 18618 - 000, Botucatu (SP).

João Domingos Rodrigues, Universidade Estadual Paulista

 

Engenheiro Agrônomo/Doutor Prof. Adjunto/Livre-Docente, Departamento de Botânica, Instituto de Biociências, Universidade Estadual Paulista - UNESP, CEP 18618 - 000, Botucatu (SP).

Published

2009-01-29

How to Cite

Leonel, S., Ono, E. O., & Rodrigues, J. D. (2009). Influence of changed temperature and gibberellins treatments on papaya seeds germination. Semina: Ciências Agrárias, 19(1), 68–72. https://doi.org/10.5433/1679-0359.1998v19n1p68

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