Storage of ipê seeds in different packages and environments

Abstract

The adequate storage will reflect directly on the physical, physiological and sanitary quality of the forest seeds and consequently on the process of seedling production. In this sense, the determination of suitable conditions for the storage of the seeds using packages and environments accessible to the producer are essential. Therefore, the objective of this work was to evaluate different packages (glass, plastic bag and kraft paper) and environments (refrigerator, freezer and laboratory environment) for storing seeds of Tabebuia chrysotricha (Mart. Ex DC.) Standl. (ipe). The variables germination, normal seedlings, abnormal seedlings and dead seeds were evaluated every 30 days for six months. The storage of yellow ipê seeds can be carried out in a plastic bag in the refrigerator (up to 150 days) and in the freezer (up to 180 days) with up to 70% germination.

Conservation and physiological quality of Handroanthus spongiosus (Rizzini) S. Grose (Bignoniaceae) seeds

“…This combination of factors involving continuous and not controlled vapor exchange between the medium and the seed with high temperatures can increase the respiratory rate and affect the development of structures and biomass allocation, even when the water contents do not oscillate. Similar results were found for H. chrysotrichus seeds, which could not be stored at room temperature for periods longer than 30 days, whereas H. impetiginosus and Handroanthus serratifolius (Vahl) S.Grose seeds did not germinate after four and nine months of storage, respectively (Silva et al, 2011;Maciel et al, 2020;Araujo et al, 2021).…”

“…Handroanthus heptaphyllus (Vell.) Mattos and H. impetiginosus seeds presented germination above 70% after 6 months of storage in CC and refrigerator, respectively (Maciel et al, 2020;Araujo et al, 2021), and Handroanthus chrysotrichus (Mart. ex dc.)…”

“…Seeds from plants of the Handroanthus genus present a relatively short natural viability period, which hinders the conservation and, consequently, the production of seedlings for these species (Cabral et al, 2003). Researchers have developed and published works involving the storage of different Handroanthus species over the last years due to the importance of these species (Shibata et al, 2012;Abbade and Takaki, 2014;Martins and Pinto, 2014;Tonetto et al, 2015;Maciel et al, 2020;Araujo et al, 2021). However, information on longevity, storage, or conservation is not available for H. spongiosus seeds.…”