TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH
ABSTRACT The study on the native species of fast growth and nodulation capacity, Ormosia discolor, intends to conserve genetic resources and make available seed lots of high vigor for seed orchards. This work evaluates the physical and physiological characteristics of seeds from 20 O. discolor trees...
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Sociedade de Investigações Florestais
2021-09-01
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| Series: | Revista Árvore |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100236&tlng=en |
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| author | Helinara Lais Vieira Capucho Manuel de Jesus Vieira Lima Júnior Angela Maria da Silva Mendes Maria Teresa Gomes Lopes Amazoneida Sá Peixoto Pinheiro Laerte Nogueira da Silva |
| author_facet | Helinara Lais Vieira Capucho Manuel de Jesus Vieira Lima Júnior Angela Maria da Silva Mendes Maria Teresa Gomes Lopes Amazoneida Sá Peixoto Pinheiro Laerte Nogueira da Silva |
| author_sort | Helinara Lais Vieira Capucho |
| collection | DOAJ |
| description | ABSTRACT The study on the native species of fast growth and nodulation capacity, Ormosia discolor, intends to conserve genetic resources and make available seed lots of high vigor for seed orchards. This work evaluates the physical and physiological characteristics of seeds from 20 O. discolor trees as a subsidy for selecting superior mother trees. Twenty matrices selected from a population in the state of Amazonas were inventoried. Physical tests were performed on the seeds collected, including water content, biometrics, the weight of one thousand seeds, and coat permeability test. For vigor estimates and classification regarding seed storage, the seeds were frozen for five months. The germination test was carried out at a constant temperature of 30 °C. It was used a completely randomized design consisting of 20 mother trees, 4 replicates, and 25 seeds per plot. The germination characteristics evaluated were germination percentage, speed index, mean germination time, and synchronization index. Cut seeds are more efficient for determining water content. All biometric variables are representative for the selection of vigorous lots, with emphasis on geometric diameter, surface area, and sphericity of seeds. Species seeds were classified as orthodox and as having physical dormancy. The protrusion of the primary root is the best morphological characteristic for evaluating germination in the laboratory. The mother trees 7, 16, and 10 showed superior characteristics for dendrometric and technological data, being indicated for marking, phenological monitoring, and planting. |
| first_indexed | 2024-12-18T02:51:08Z |
| format | Article |
| id | doaj.art-78f45e9f11c941d7a4674b83ccb1b5a8 |
| institution | Directory Open Access Journal |
| issn | 1806-9088 |
| language | English |
| last_indexed | 2024-12-18T02:51:08Z |
| publishDate | 2021-09-01 |
| publisher | Sociedade de Investigações Florestais |
| record_format | Article |
| series | Revista Árvore |
| spelling | doaj.art-78f45e9f11c941d7a4674b83ccb1b5a82022-12-21T21:23:27ZengSociedade de Investigações FlorestaisRevista Árvore1806-90882021-09-014510.1590/1806-908820210000036TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTHHelinara Lais Vieira Capuchohttps://orcid.org/0000-0002-3010-9096Manuel de Jesus Vieira Lima Júniorhttps://orcid.org/0000-0001-9885-1214Angela Maria da Silva Mendeshttps://orcid.org/0000-0001-6527-8482Maria Teresa Gomes Lopeshttps://orcid.org/0000-0003-1988-7126Amazoneida Sá Peixoto Pinheirohttps://orcid.org/0000-0001-8599-2122Laerte Nogueira da Silvahttps://orcid.org/0000-0003-0452-228XABSTRACT The study on the native species of fast growth and nodulation capacity, Ormosia discolor, intends to conserve genetic resources and make available seed lots of high vigor for seed orchards. This work evaluates the physical and physiological characteristics of seeds from 20 O. discolor trees as a subsidy for selecting superior mother trees. Twenty matrices selected from a population in the state of Amazonas were inventoried. Physical tests were performed on the seeds collected, including water content, biometrics, the weight of one thousand seeds, and coat permeability test. For vigor estimates and classification regarding seed storage, the seeds were frozen for five months. The germination test was carried out at a constant temperature of 30 °C. It was used a completely randomized design consisting of 20 mother trees, 4 replicates, and 25 seeds per plot. The germination characteristics evaluated were germination percentage, speed index, mean germination time, and synchronization index. Cut seeds are more efficient for determining water content. All biometric variables are representative for the selection of vigorous lots, with emphasis on geometric diameter, surface area, and sphericity of seeds. Species seeds were classified as orthodox and as having physical dormancy. The protrusion of the primary root is the best morphological characteristic for evaluating germination in the laboratory. The mother trees 7, 16, and 10 showed superior characteristics for dendrometric and technological data, being indicated for marking, phenological monitoring, and planting.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100236&tlng=enNative speciesSeed analysisAmazon |
| spellingShingle | Helinara Lais Vieira Capucho Manuel de Jesus Vieira Lima Júnior Angela Maria da Silva Mendes Maria Teresa Gomes Lopes Amazoneida Sá Peixoto Pinheiro Laerte Nogueira da Silva TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH Revista Árvore Native species Seed analysis Amazon |
| title | TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH |
| title_full | TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH |
| title_fullStr | TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH |
| title_full_unstemmed | TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH |
| title_short | TECHNOLOGICAL PARAMETERS OF SEEDS APPLIED TO THE SELECTION OF SUPERIOR MOTHER TREES FROM Ormosia discolor SPRUCE EX BENTH |
| title_sort | technological parameters of seeds applied to the selection of superior mother trees from ormosia discolor spruce ex benth |
| topic | Native species Seed analysis Amazon |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100236&tlng=en |
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