Onion seedling production in styrofoam trays under controlled environment, as summer-planted onions

Scientia Agricola

Maria Cristina Veiga De Vincenzo¹  João Tessarioli Neto¹ 

[1] ,USP ESALQ Depto. de Produção Vegetal

关键词: Allium cepa;    tray;    greenhouse;    short-day onion;    seedling;    Allium cepa;    cebola;    bandeja;    cultivo de verão;    muda;   

DOI  :  10.1590/S0103-90162003000100010

来源: SciELO

【 摘 要 】

Summer-planted onion (Allium cepa L.) can increase grower profits, but the production of seedlings for transplant is difficult. This experiment was carried out in Piracicaba, SP, Brazil, with the objective of studying the behavior of the short-day onion hybrid Mercedes, in its initial stage, under controlled greenhouse environment, as summer-planted onions. Four formulated substrates, two different numbers of plants per cell were tested, and 288-cell styrofoam trays used. Trials were set up in split-plot design (n=3). Substrate and number of plants per cell represented main plots, and N application (2 and 3 times a week) the subplots. The number of three plants per cell decrease the earlier onset of bulbing and increase plant height; substrates did not show differences; and the N application 3 times a week increased plant height and leaf dry weight, but did not result in earlier onset of bulbing.

【 授权许可】

CC BY   
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