Articles
Effect of fruit maturation, umbel order, packaging containers and storage time on coriander (Coriander sativum) seeds from Alentejo (Portugal)
Article number
1358_14
Pages
99 – 106
Language
English
Abstract
Coriander is cultivated in Alentejo for food seasoning.
Seeds are often attacked by ants and fungi.
Small farmers need effective cheap and available packaging materials and techniques to storage seeds.
Seed germination trials were done using a coriander landrace, collected in June 2015 with 82.5% germination.
In the 1st trial (April 2016) whole cremocarps and separated mericarps were compared; 4 seed pre-germination treatments were considered: control, 48 h freezing, 5 min immersion in 95% ethyl alcohol and 5 min immersion in 5% sodium hypochlorite.
In the 2nd trial, 3 seed packaging containers (paper, glass and plastic) and 5 storage conditions: room temperature (ca. 20°C), refrigerator (ca 5°C), freezing (-5°C), 24 h freezing and after room temperature and; 24 h freezing and after refrigeration, were compared.
The 3rd trial seeds were collected in June 2016; subsamples of 7 stages of fruit maturation and 4 types of umbels (1st order, 2nd order, 3rd order, 4th order) were considered.
All trials were incubated at 20°C and 12 h photoperiod, using 3 replications of 50 mericarps.
The 2nd trial was repeated in 2017, 2018 and 2021 to evaluate seed germination after long-term storage.
Separated mericarps had significant (p<0.05) higher germination (76.3%) than whole cremocarps (56.3%). Seed immersion in ethyl alcohol and sodium hypochlorite had significant (p<0.05) statistical positive effect on fungi control.
Freeze seeds had significant (p<0.05) lower germination than other temperature storage conditions.
Seed germination, after long-term storage (6 years) was better with seeds stored in glass bottles or plastic bags in a refrigerator (ca. 5°C). The order of umbels did not affect seed germination.
Seed maturation stages did not affected germination after 1-year storage time.
Full matured seeds had the best germination results after long-term (6-years) storage time.
Seeds are often attacked by ants and fungi.
Small farmers need effective cheap and available packaging materials and techniques to storage seeds.
Seed germination trials were done using a coriander landrace, collected in June 2015 with 82.5% germination.
In the 1st trial (April 2016) whole cremocarps and separated mericarps were compared; 4 seed pre-germination treatments were considered: control, 48 h freezing, 5 min immersion in 95% ethyl alcohol and 5 min immersion in 5% sodium hypochlorite.
In the 2nd trial, 3 seed packaging containers (paper, glass and plastic) and 5 storage conditions: room temperature (ca. 20°C), refrigerator (ca 5°C), freezing (-5°C), 24 h freezing and after room temperature and; 24 h freezing and after refrigeration, were compared.
The 3rd trial seeds were collected in June 2016; subsamples of 7 stages of fruit maturation and 4 types of umbels (1st order, 2nd order, 3rd order, 4th order) were considered.
All trials were incubated at 20°C and 12 h photoperiod, using 3 replications of 50 mericarps.
The 2nd trial was repeated in 2017, 2018 and 2021 to evaluate seed germination after long-term storage.
Separated mericarps had significant (p<0.05) higher germination (76.3%) than whole cremocarps (56.3%). Seed immersion in ethyl alcohol and sodium hypochlorite had significant (p<0.05) statistical positive effect on fungi control.
Freeze seeds had significant (p<0.05) lower germination than other temperature storage conditions.
Seed germination, after long-term storage (6 years) was better with seeds stored in glass bottles or plastic bags in a refrigerator (ca. 5°C). The order of umbels did not affect seed germination.
Seed maturation stages did not affected germination after 1-year storage time.
Full matured seeds had the best germination results after long-term (6-years) storage time.
Authors
O. Póvoa, M. Paulo, M. Churra, N. Farinha
Keywords
landrace, seed storage, seed treatments, fungus-attacks, insects-attacks
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