Artificial drying of safflower seeds at different air temperatures: effect on the physiological potential of freshly harvested and stored seeds

Oba, Guilherme Cardoso; Goneli, André Luís Duarte; Masetto, Tathiana Elisa; Filho, César Pedro Hartmann; Michels, Karina Laís Leite Sarath; Ávila, João Paulo Correia

doi:10.1590/2317-1545v41n4197808

Cited by 7 publications

(7 citation statements)

References 27 publications

(17 reference statements)

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“…These results suggest that the low initial germination was due to some kind of dormancy that was released during storage (Figures 1 and 3). A similar behaviour was found in seeds of Carthamus tinctorius -Asteraceae (Oba et al, 2019) and of other species of Lauraceae (Carvalho, 2000;Carvalho et al, 2008). C. arshersoniana seeds probably have nondeep physiological dormancy, caused by the presence of the endocarp.…”

Section: Resultssupporting

confidence: 71%

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

et al. 2021

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Some species of the Lauraceae family produce seeds that are generally sensitive to desiccation, which makes them difficult to store. The objective of this study was to characterize changes in seed quality of C. aschersoniana from two lots, as well in the physiological and cellular aspects during 12 months of storage. Seeds were stored with their original moisture content (MC) or after pre-drying to 35% MC in a cold chamber (5 °C) at a relative humidity of 40%. Seeds were sampled and tested at time 0, 3, 6 and 12 months of storage regarding to moisture content, germination and ultrastructural features. The seeds were dispersed with dormancy that was overcame by the cold storage condition and the reserves in undried seeds were partly consumed during storage. Both undried and pre-dried seeds remained viable for at least 12 months.

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Section: Resultssupporting

confidence: 71%

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

et al. 2021

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“…Seeds of Carthamus tinctoris were dried in an electric drier at 40, 50, 60 and 70 • C to 6.6% MC and then stored dry in sealed containers at room temperature for 240 days. Those dried at 40 • C had the highest viability [141].…”

Section: Management Of Afterripeningmentioning

confidence: 99%

Breaking Seed Dormancy during Dry Storage: A Useful Tool or Major Problem for Successful Restoration via Direct Seeding?

Baskin

2020

Plants

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To facilitate the restoration of disturbed vegetation, seeds of wild species are collected and held in dry storage, but often there is a shortage of seeds for this purpose. Thus, much research effort is expended to maximize the use of the available seeds and to ensure that they are nondormant when sown. Sowing nondormant (versus dormant) seeds in the field should increase the success of the restoration. Of the various treatments available to break seed dormancy, afterripening, that is, dormancy break during dry storage, is the most cost-effective. Seeds that can undergo afterripening have nondeep physiological dormancy, and this includes members of common families such as Asteraceae and Poaceae. In this review, we consider differences between species in terms of seed moisture content, temperature and time required for afterripening and discuss the conditions in which afterripening is rapid but could lead to seed aging and death if storage is too long. Attention is given to the induction of secondary dormancy in seeds that have become nondormant via afterripening and to the biochemical and molecular changes occurring in seeds during dry storage. Some recommendations are made for managing afterripening so that seeds are nondormant at the time for sowing. The most important recommendation probably is that germination responses of the seeds need to be monitored for germinability/viability during the storage period.

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“…Each branch usually bears from one to five flower heads containing 15 to 20 seeds each [69]. The seed oil content ranges from 30% to 50%, depending on the variety and the environmental conditions [190]. Safflower is usually grown in recropping or in rotation with small grains or fallow and annual legumes.…”

Section: Safflower Main Featuresmentioning

confidence: 99%

Herbaceous Oil Crops, a Review on Mechanical Harvesting State of the Art

2020

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The sustainable production of renewable energy is a key topic on the European community’s agenda in the next decades. The use of residuals from agriculture could not be enough to meet the growing demand for energy, and the contribution of vegetable oil to biodiesel production may be important. Moreover, vegetable oil can surrogate petroleum products in many cases, as in cosmetics, biopolymers, or lubricants production. However, the cultivation of oil crops for the mere production of industrial oil would arise concerns on competition for land use between food and non-food crops. Additionally, the economic sustainability is not always guaranteed, since the mechanical harvesting, in some cases, is still far from acceptable. Therefore, it is difficult to plan the future strategy on bioproducts production from oil crops if the actual feasibility to harvest the seeds is still almost unknown. With the present review, the authors aim to provide a comprehensive overview on the state of the art of mechanical harvesting in seven herbaceous oil crops, namely: sunflower (Heliantus annuus L.), canola (Brassica napus L.), cardoon (Cynara cardunculus L.), camelina (Camelina sativa (L.) Crantz), safflower (Carthamus tinctorius L.), crambe (Crambe abyssinica R. E. Fr.), and castor bean (Ricinus communis L.). The review underlines that the mechanical harvesting of sunflower, canola and cardoon seeds is performed relying on specific devices that perform effectively with a minimum seed loss. Crambe and safflower seeds can be harvested through a combine harvester equipped with a header for cereals. On the other hand, camelina and castor crops still lack the reliable implementation on combine harvesters. Some attempts have been performed to harvest camelina and castor while using a cereal header and a maize header, respectively, but the actual effectiveness of both strategies is still unknown.

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Artificial drying of safflower seeds at different air temperatures: effect on the physiological potential of freshly harvested and stored seeds

Cited by 7 publications

References 27 publications

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

Physiological and Cellular Changes of Stored Cryptocarya aschersoniana Mez. Seeds

Breaking Seed Dormancy during Dry Storage: A Useful Tool or Major Problem for Successful Restoration via Direct Seeding?

Herbaceous Oil Crops, a Review on Mechanical Harvesting State of the Art

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