Germinação de sementes de alface obtidas de plantas cultivadas com diferentes doses de fósforo

Cristiaini Kano; Antonio Ismael Inácio Cardoso; Roberto Lyra Villas Bôas; Andréa Reiko Oliveira Higuti

doi:10.5433/1679-0359.2011v32n2p591

Lettuce seed germination from plant cultivated with different phosphorus levels

Authors

Cristiaini Kano APTA - Pólo Leste Paulista
Antonio Ismael Inácio Cardoso Universidade Estadual de São Paulo/FCA
Roberto Lyra Villas Bôas Universidade Estadual de São Paulo/FCA
Andréa Reiko Oliveira Higuti Universidade Estadual de São Paulo/FCA

DOI:

https://doi.org/10.5433/1679-0359.2011v32n2p591

Keywords:

Lactuca sativa L., Phosphorus fertilization, High temperatures.

Abstract

This study was carried out at São Manuel Experimental Farm, UNESP/FCA, in Botucatu, São Paulo state, Brazil, with the objective to evaluate the lettuce seeds (cultivar Verônica) germination from plants cultivated with different phosphorus levels at harvest, in three temperatures and after two conservation period in dry chamber. At seed production stage, the experiment was conducted in randomized complete blocks, with five treatments (0; 200; 400; 600 and 800 kg ha^-1of P₂O₅) and five replications. After harvesting, seed germination at 20^oC and under high temperatures (30 and 33ºC) was evaluated. After 15 and 25 months of conservation in dry chamber room it was evaluated germination at 20ºC. The P₂O₅ levels evaluated did not affect seed germination soon after harvesting at the three temperatures evaluated, but, the higher the temperature, the lower the seed vigor. After 25 months of conservation, the lesser the P₂O₅ rates, the lesser seed germination and germination speed index.

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Author Biographies

Cristiaini Kano, APTA - Pólo Leste Paulista

Pesquisadora Científica, Doutora, APTA - Pólo Leste Paulista. C. Postal 01, CEP 13910-000, Monte Alegre do Sul, SP. Fone: (19) 3899-1286.

Antonio Ismael Inácio Cardoso, Universidade Estadual de São Paulo/FCA

Prof. Dr. UNESP/FCA, Departamento de Produção Vegetal. Setor Horticultura, Botucatu, SP.

Roberto Lyra Villas Bôas, Universidade Estadual de São Paulo/FCA

Prof. Dr. UNESP/FCA, Departamento de Recursos Naturais. Setor Ciência do Solo, Botucatu, SP.

Andréa Reiko Oliveira Higuti, Universidade Estadual de São Paulo/FCA

Engª Agrª., Doutora.

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Published

2011-07-12

How to Cite

Kano, C., Cardoso, A. I. I., Villas Bôas, R. L., & Higuti, A. R. O. (2011). Lettuce seed germination from plant cultivated with different phosphorus levels. Semina: Ciências Agrárias, 32(2), 591–598. https://doi.org/10.5433/1679-0359.2011v32n2p591

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Issue

Vol. 32 No. 2 (2011)

Section

Communication

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