Dormancy of safflower seeds: effect of storage and cold stratification
Abstract: Safflower seeds exhibit dormancy soon after dispersion from the mother plant, making it impossible to sow newly harvested seeds. Thus, the aim of the present study was to evaluate breaking the dormancy of safflower seeds during storage associated with the use of different periods of cold s...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Tecnologia de Sementes
|
| Series: | Journal of Seed Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372017000400433&lng=en&tlng=en |
| _version_ | 1817987355113422848 |
|---|---|
| author | Guilherme Cardoso Oba André Luís Duarte Goneli Tathiana Elisa Masetto Cesar Pedro Hartmann Filho Vinicius Souza Patricio Karina Laís Leite Sarath |
| author_facet | Guilherme Cardoso Oba André Luís Duarte Goneli Tathiana Elisa Masetto Cesar Pedro Hartmann Filho Vinicius Souza Patricio Karina Laís Leite Sarath |
| author_sort | Guilherme Cardoso Oba |
| collection | DOAJ |
| description | Abstract: Safflower seeds exhibit dormancy soon after dispersion from the mother plant, making it impossible to sow newly harvested seeds. Thus, the aim of the present study was to evaluate breaking the dormancy of safflower seeds during storage associated with the use of different periods of cold stratification. Seeds with a moisture content of 7.2% were stored for 0, 60, 120, 180, and 240 days, and for each storage period, they were stratified for 0 (control), 1, 2, 3, 4, 5, 6, and 7 days at 10 °C in the dark. After stratification, seeds were subjected to the germination test and evaluated for percentage of root protrusion, germination speed index, and percentages of first count and final count of normal seedlings. Safflower seeds gradually overcome dormancy during storage for 240 days in a non-controlled environment. Storage associated with periods of cold stratification for 5 to 7 days lead to an increase in germination and are effective in breaking the physiological dormancy of safflower seeds. |
| first_indexed | 2024-04-14T00:20:04Z |
| format | Article |
| id | doaj.art-64e0165e2f4a4151bc014f975d6df979 |
| institution | Directory Open Access Journal |
| issn | 2317-1545 |
| language | English |
| last_indexed | 2024-04-14T00:20:04Z |
| publisher | Associação Brasileira de Tecnologia de Sementes |
| record_format | Article |
| series | Journal of Seed Science |
| spelling | doaj.art-64e0165e2f4a4151bc014f975d6df9792022-12-22T02:22:59ZengAssociação Brasileira de Tecnologia de SementesJournal of Seed Science2317-154539443343910.1590/2317-1545v39n4181244S2317-15372017000400433Dormancy of safflower seeds: effect of storage and cold stratificationGuilherme Cardoso ObaAndré Luís Duarte GoneliTathiana Elisa MasettoCesar Pedro Hartmann FilhoVinicius Souza PatricioKarina Laís Leite SarathAbstract: Safflower seeds exhibit dormancy soon after dispersion from the mother plant, making it impossible to sow newly harvested seeds. Thus, the aim of the present study was to evaluate breaking the dormancy of safflower seeds during storage associated with the use of different periods of cold stratification. Seeds with a moisture content of 7.2% were stored for 0, 60, 120, 180, and 240 days, and for each storage period, they were stratified for 0 (control), 1, 2, 3, 4, 5, 6, and 7 days at 10 °C in the dark. After stratification, seeds were subjected to the germination test and evaluated for percentage of root protrusion, germination speed index, and percentages of first count and final count of normal seedlings. Safflower seeds gradually overcome dormancy during storage for 240 days in a non-controlled environment. Storage associated with periods of cold stratification for 5 to 7 days lead to an increase in germination and are effective in breaking the physiological dormancy of safflower seeds.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372017000400433&lng=en&tlng=enCarthamus tinctorius L.physiological dormancygermination |
| spellingShingle | Guilherme Cardoso Oba André Luís Duarte Goneli Tathiana Elisa Masetto Cesar Pedro Hartmann Filho Vinicius Souza Patricio Karina Laís Leite Sarath Dormancy of safflower seeds: effect of storage and cold stratification Journal of Seed Science Carthamus tinctorius L. physiological dormancy germination |
| title | Dormancy of safflower seeds: effect of storage and cold stratification |
| title_full | Dormancy of safflower seeds: effect of storage and cold stratification |
| title_fullStr | Dormancy of safflower seeds: effect of storage and cold stratification |
| title_full_unstemmed | Dormancy of safflower seeds: effect of storage and cold stratification |
| title_short | Dormancy of safflower seeds: effect of storage and cold stratification |
| title_sort | dormancy of safflower seeds effect of storage and cold stratification |
| topic | Carthamus tinctorius L. physiological dormancy germination |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372017000400433&lng=en&tlng=en |
| work_keys_str_mv | AT guilhermecardosooba dormancyofsafflowerseedseffectofstorageandcoldstratification AT andreluisduartegoneli dormancyofsafflowerseedseffectofstorageandcoldstratification AT tathianaelisamasetto dormancyofsafflowerseedseffectofstorageandcoldstratification AT cesarpedrohartmannfilho dormancyofsafflowerseedseffectofstorageandcoldstratification AT viniciussouzapatricio dormancyofsafflowerseedseffectofstorageandcoldstratification AT karinalaisleitesarath dormancyofsafflowerseedseffectofstorageandcoldstratification |