Abstract

ZAMBRANO-MARCILLO, Silvia Madelein et al. Effect of Salicylic Acid, β-Aminobutyric Acid, heating and imbibition on the germination of oil palm (Elaeis guineensis Jacq.) seeds in Ecuador. Cienc. Tecnol. Agropecuaria [online]. 2022, vol.23, n.2, e2001.  Epub Apr 31, 2022. ISSN 0122-8706.  https://doi.org/10.21930/rcta.vol23_num2_art:2001.

The commercial production of germinated of African oil palm (Elaeis guineensis Jacq) seeds, it takes 150 days, giving place to the development of infections caused by pathogens. With the aim of reducing the production time of germinated seeds of African oil palm (Elaeis guineensis Jacq.) and preserve their phytosanitary status, four factors were evaluated: three levels of imbibition before taking the seeds to heating, two periods of heating, two levels of imbibition before entering the germination rooms, and two inductors: Salicylic Acid (SA) and β- aminobutyric Acid (BABA) in doses of 1 mM and 2.5 mM respectively. This results in a total of 24 treatments in addition of the control. A total of 30 seeds were evaluated per treatment and per repetition from the same Dura type bunch, with zero days of storage. A completely random design with factorial arrangement +1 was used, assisted by Tukey's test at 5 %. The results showed that the seeds that stayed during the first imbibition for 6 days in water, 2 days in GABA or in AS before entering heating, and with 20 days of heating, presented in 82 days the highest percentage of optimal germination (34.44 % and 23.89 %, respectively). and the treatment that was during the first imbibition 6 days in water and 2 days in GABA, and 20 days of heating, achieved the highest percentage of optimal germination (40 %). The control showed higher incidence of diseases (79 %) with respect to the other factors (16 %). Study findings could be used to decrease seed germination time and damage caused by pathogens.

Keywords : alternating temperature; chemical plant growth stimulants; germinative capacity; seed dormancy; seed germinability; seminal hydration.

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