Ensaio sobre métodos de extração de sementes de pepino (Cucumis sativus L.)
Palavras-chave:
métodos usuais, lavagem direta, teste realizado, germinação elevada, acidez comercialResumo
This experiment deals with methods for cucumber seed extraction.
Ripened fruits were crushed by machine and submitted to the following treatments: a) seeds washed immediately after crushing, followed by the addition oflime, Ca(OH), then washed and treated with 38% HCI; b) seeds fermented for four days, then washed; c) seeds fermented for six days, then washed; d) seeds treated with 38% HCI1 (7, 5 liters per ton of crushed ma- terial), for 30 minutes then washed; e) seeds treated with 96% HZSO4 (2,5 liters per ton of crushed material)for 30 minutes, then washed; f) seeds treated with 25% ammonium hydroxide (12 liters per ton of crushed material) for 30 minutes, followed by 38% HC1(7,5liters per ton of crushed material) thenwashed.
Chemical treatments permitted a faster extractionthan fermentation, Seeds treated with HC1 and H2S04 were lighter and had abetter appearance, Tretaments (a) and (f) showed significantly better seed germination 15 days afte r treatment, however 90 days later there was no significant difference between treatments,
Referências
HAWTHORN, LESLIE R, & POLLARD, L. Vegetable and flower seed production. New York, The Blackiston Company, Inc., 1954, 626 p.
SCHNEIDER, A, Uber ein vereinfachtes Verfahren der Gewinnung von Gurkensamen. (A simplified method of cucumber seed extration), Zuchter (21):136-137. 1951, In Hort. Abst. 22(3):359 (2568). 1952,
WHITAKER, T. W. &DAVIS, G. N. Cucurbits, London, Leonard Hill (Books) Limited, 1962. 250 p.
ZINK, E. & MENDONGA, N. T. Influéncia do método de extração navitalidade de semente de moranga. Bragantia 24:1-11. 1965.
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