Processing and physical and physiological quality of the native forest seeds of <i>Vernonanthura discolor

Seeds of native forest species for food and seedling production have a growing demand that impacts the need for studies involving seed storage in order to maintain good levels of germination quality. Thus, scientific analyzes that explore the physiological potential of the seeds of these species are necessary, especially for the pink pepper (Schinus terebinthifolia Raddi.), a species used as an alternative source of income for traditional communities and which has been arousing interest due to the consumption of its fruits as a condiment in the national and international market. This work aimed to assess the physiological quality of pink pepper seeds according to the storage period and seed size. The seeds came from a rural settlement, a pioneer in the extraction of pink pepper, in the state of Rio de Janeiro, Brazil. The seeds were evaluated for moisture content, germination, first count, length and dry weight of the germinated seedlings, during the period of time that they remained stored and the size of the seeds. The results allowed to conclude that: i) the germinative percentage of the stored pink pepper seeds decreased over the months; ii) the moisture content of the seeds decreased over the months evaluated iii) the different sizes of seeds did not show differences in germination and storage time and iv) values of length and dry weight of the seedlings did not differ according to the period of storage.

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Seed quality analysis of Senna siamea Lam. using image analysis techniques

Journal of Seed Science ◽

10.1590/2317-1545v42241633 ◽

2020 ◽

Vol 42 ◽

Author(s):

Jackson Araújo da Silva ◽

André Dantas de Medeiros ◽

Márcio Dias Pereira ◽

Amanda Karoliny Fernandes Ramos ◽

Laércio Junio da Silva

Keyword(s):

Image Analysis ◽

Seed Quality ◽

Quality Analysis ◽

Radiographic Images ◽

Senna Siamea ◽

Analysis Techniques ◽

Physiological Quality ◽

Image Analysis Techniques ◽

Forest Seeds

Abstract: The inclusion of image analysis techniques for the accurate and rapid assessment of the quality of forest seeds is highly desirable. The use of digital radiographic images of seeds and the analysis of seedling images, still little used in determining the quality of forest seeds, are among the available imaging techniques. This study aimed to assess the feasibility of using the analysis of images of seeds and seedlings in the assessment of the physical and physiological quality of Senna siamea seeds. Radiographic images of seeds were obtained from five seed lots, allowing generating morphological and tissue integrity descriptors. These seeds were then subjected to germination and seedling growth tests, which allowed obtaining variables related to physiological quality. The generated seedlings were scanned and analyzed using the software ImageJ. The data were analyzed using analysis of variance, correlation, and principal component analysis. The results showed differences between seed lots in terms of physiological quality and physical integrity of internal tissues. Significant correlations were observed between the variables obtained with the radiographic analysis and seed physiological characterization tests. The use of techniques to analyze seed radiographs and seedling images allows access to information on the physical and physiological integrity of S. siamea seeds.

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Germination and vigor of Dimorphandra mollis benth. seeds under different temperatures and substrates

Revista Árvore ◽

10.1590/s0100-67622010000200002 ◽

2010 ◽

Vol 34 (2) ◽

pp. 205-213 ◽

Cited By ~ 7

Author(s):

Mauro Vasconcelos Pacheco ◽

Vilmar Luciano Mattei ◽

Valderez Pontes Matos ◽

Lucia Helena de Moura Sena

Keyword(s):

Dry Matter ◽

Native Forest ◽

Coconut Fiber ◽

Seed Moisture Content ◽

Paper Towel ◽

Seed Moisture ◽

Different Temperatures ◽

Physiological Quality ◽

Dry Matter Weight

The Dimorphandra mollis Benth. - Caesalpiniaceae is a native forest species coming from the Cerrado and Caatinga due to its economical and ecological use, which justifies the studies on seed germination. In this work, germinative performance of D. mollis seeds were studied in different conditions of temperature regime and substrate. The experimental delineation used was completely randomized in factorial 4 x 4 (4 substrates -sand, coconut fiber, vermiculite and paper towel; and 4 temperatures: 25, 30, 35 and 20-30ºC), with four replications of 25 seeds each. The following parameters were evaluated: seed moisture content, final germination, first germination count, germination speed index, length and dry matter weight. The best germination and vigor is obtained at 30 and 35ºC. The substrates paper towel and vermiculite allow satisfactory germinative performance of seeds, being suitable to evaluate the physiological quality of D. mollis seeds.

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EVALUATION OF TWO METHODS OF GERMPLASM COLLECTION IN MEXICO SOUTHEAST

International Journal of Advanced Research ◽

10.21474/ijar01/12857 ◽

2021 ◽

Vol 9 (5) ◽

pp. 437-443

Author(s):

Jose Vidal Cob-Uicab ◽

◽

Gilbert Jose Herrera-Cool ◽

Carlos Roman Castillo-Martinez ◽

Bartolo Rodriguez-Santiago ◽

...

Keyword(s):

Traditional Method ◽

Germplasm Collection ◽

Laboratory Analysis ◽

Farming Practices ◽

Genetic Quality ◽

Physiological Quality ◽

Seed Collecting ◽

Forest Seeds ◽

Tetrazolium Test

The implementation of good farming practices in seed collecting is fundamental key to guarantee the physiological and genetic quality of forest seeds. The objective of this work was to evaluate the implementation of two methods to collect seedsfrom Cedrelaodorata L.toguarantee seeds of high physiologicalquality. Seeds from 40 superior phenotypically trees of Cedrelaodorata L. in Yucatan Mexico peninsula region were collected from March to May 2019.The collect methods applied in this research werethe traditionalcollectand the climb trees. The physiological quality of seeds wasevaluated by germination and tetrazolium test. The laboratory analysis confirmed 88% of seeds pure with 94% of germination in climbing trees method, in contrast in the traditional method showed 66% of seeds pure with 72% of germination. The results by conventional germination it was not showed significative statistical differences. These results are part of novel contributions in collectmethodology using tools to climb on trees which to be complement of superior phenotypically trees selection, contribute comprehensively to obtain physiological and genetic quality forest seeds.

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TESTE DE TETRAZÓLIO EM SEMENTES DE Copaifera langsdorffii E Schizolobium parahyba

FLORESTA ◽

10.5380/rf.v41i4.25352 ◽

2011 ◽

Vol 41 (4) ◽

Cited By ~ 3

Author(s):

Cristiane Alves Fogaça ◽

Nádia Graciele Krohn ◽

Márcio De Aquino Souza ◽

Rinaldo César de Paula

Keyword(s):

Seed Coat ◽

Germination Test ◽

Schizolobium Parahyba ◽

Copaifera Langsdorffii ◽

Physiological Quality ◽

Forest Seeds ◽

Tetrazolium Test

Este trabalho objetivou padronizar o teste de tetrazólio para avaliação da viabilidade de sementes de copaíba e guapuruvu. Avaliou as seguintes metodologias: sementes escarificadas mecanicamente e embebidas por 24 e 48 horas, com posterior retirada do tegumento e imersas em solução de tetrazólio a 0,075, 0,10 e 0,20% por 2, 3 e 4 horas, a 35 ºC, no escuro. As metodologias avaliadas que foram eficientes na obtenção de coloração satisfatória, permitindo a diferenciação dos tecidos, e na avaliação da qualidade fisiológica das sementes, quando comparadas com o teste padrão de germinação, foram: para a espécie copaíba, sementes escarificadas e embebidas por 24 horas, a 35 ºC, com posterior retirada do tegumento, submetidas a solução de tetrazólio a 0,20% por 4 horas, a 35 ºC, no escuro; e para a espécie guapuruvu, sementes escarificadas e embebidas por 48 horas, a 35 ºC, com posterior retirada do tegumento, submetidas a solução de tetrazólio a 0,10% por 4 horas, a 35 ºC, no escuro.Palavras-chave: Sementes florestais; teste rápido; copaíba; guapuruvu. AbstractTetrazolium test in Copaifera langsdorffii and Schizolobium parahyba seeds. This research aimed to standardize the tetrazolium test for evaluation of viability of Copaifera langsdorffii Desf. and Schizolobium parahyba Vell. Blake seeds. It evaluated the following methodologies: seeds scarificated mechanically and soaked up by 24 and 48 hours, with posterior seed coat removal and immersed in tetrazolium solution at 0.075; 0.10 and 0.20% for 2, 3 and 4 hours, 35 ºC, the dark one. The evaluated methodologies that had been efficient in the attainment of satisfactory coloration, allowing the differentiation of tissues, and in the evaluation of the physiological quality of the seeds when compared with the germination test, had been: for the species Copaifera langsdorffii, seeds scarificated and soaked up by 24 hours, 35 ºC, with posterior seed coat removal, submitted to the tetrazolium solution 0.20% for 4 hours, 35 ºC, in the dark one, and for the species guapuruvu, seeds scarificated and soaked up by 48 hours, 35 ºC, with posterior seed coat removal, submitted to the tetrazolium solution 0.10% for 4 hours, 35 ºC, in the dark one.Keywords: Forest seeds; fast test; Copaifera langsdorffii; Schizolobium parahyba.

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Evaluation of the electrical conductivity of forest seeds after digestive tract of wild birds

Ciência e Natura ◽

10.5902/2179460x35752 ◽

2018 ◽

Vol 40 ◽

pp. 79

Author(s):

Sérgio Thode Filho ◽

Heider Alves Franco ◽

Emanuele Nunes Nunes de Lima Figueiredo Jorge ◽

Miqueias Da Silva Fernandes ◽

Ildemar Ferreira ◽

...

Keyword(s):

Electrical Conductivity ◽

Digestive Tract ◽

Wild Birds ◽

Individual Level ◽

Genetic Potential ◽

Physiological Quality ◽

The Individual ◽

Forest Seeds

The production of seedlings encompasses the need for knowledge of plant physiology, mainly related to seeds and their minutiae. The seed is the vehicle that carries the full genetic potential of a cultivar with superior characteristics. Vigor can be described as that seed property that determines its emergence under unfavorable conditions. According to the International Seed Testing Association (ISTA). The process of reforestation can happen through the production of seedlings and, through seed dispersal, this can occur due to the action of the plant itself (autochory), water (hydrochory), wind (anemochory), animals (zoochory), etc. The current work aimed to investigate the feasibility of using the individual electrical conductivity test to evaluate the physiological quality of seeds of forest species after passage through the digestive tract of wild birds. The results allowed inferring that the forest seeds after digestive tract of wild birds presented low electrical conductivity at the individual level. Thus, the seeds in study no presented loss force after digestive tract of wild birds. Therefore, the birds only performed the role of individual dispersant.

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ASSESSMENT OF THE PHYSICAL AND PHYSIOLOGICAL QUALITY OF Piptadenia gonoacantha SEEDS (MART.) J. F. MACBR. USING IMAGE ANALYSIS

Revista Árvore ◽

10.1590/1806-908820200000026 ◽

2020 ◽

Vol 44 ◽

Cited By ~ 1

Author(s):

Daniel Teixeira Pinheiro ◽

Nayara Pereira Capobiango ◽

André Dantas de Medeiros ◽

Karine Fernandes Caiafa ◽

Denise Cunha Fernandes dos Santos Dias ◽

...

Keyword(s):

Image Analysis ◽

Visual Analysis ◽

New Technologies ◽

Automated Analysis ◽

Quality Analysis ◽

Native Forest ◽

X Ray ◽

Tissue Density ◽

Physiological Quality

ABSTRACT The assessment of the quality of native forest species seeds is extremely important and, in this sense, it is necessary to integrate new technologies that can complement the quality analysis traditionally used. This study aimed to evaluate the physical and physiological quality of Piptadenia gonoacantha seeds using image analysis techniques and to relate aspects of tissue integrity with physiological attributes. Seeds from 10 lots were collected and submitted to automatic and visual analyses of radiographic images, with the determination of parameters related to tissue density and seed filling. After the X-ray test, the seeds were subjected to physiological analyses of germination and vigor. It was observed that the lots that presented higher values of tissue density, filling, and solidity, presented higher germination and vigor. It was also evident that the damage present in the seeds was causally related their physiological condition. Therefore, the results showed that the use of the X-ray technique in seeds combined with the automated analysis of the radiographs is efficient in the evaluation of the internal morphology of P. gonoacantha seeds. The physical integrity of the seed tissues is directly related to the physiological quality and allows the classification of different lots as to vigor. Visual analysis of digital radiographs is adequate to identify malformation in P. gonoacantha seeds.

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Physiological quality of soybean seeds coming from cultivation with application of biostimulant

Australian Journal of Crop Science ◽

10.21475/ajcs.17.11.02.p207 ◽

2017 ◽

Vol 11 (02) ◽

pp. 162-168

Author(s):

Amanda Ribeiro Peres ◽

◽

Claudinei Kappes ◽

José Roberto Portugal ◽

Marco Eustáquio de Sá ◽

...

Keyword(s):

Soybean Seeds ◽

Physiological Quality

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Effect of intermittent drying on the energy consumption and physiological quality of soybean seeds

Journal of Food Processing and Preservation ◽

10.1111/jfpp.15188 ◽

2020 ◽

Author(s):

Camila Andressa Bissaro ◽

Rafael Oliveira Defendi ◽

Lucas Caiubi Pereira ◽

Alessandro Lucca Braccini ◽

Diogo Francisco Rossoni ◽

...

Keyword(s):

Energy Consumption ◽

Soybean Seeds ◽

Physiological Quality

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Effects of different drying rates on the physiological quality of Coffea canephora Pierre seeds

Brazilian Journal of Plant Physiology ◽

10.1590/s1677-04202005000200002 ◽

2005 ◽

Vol 17 (2) ◽

pp. 199-205 ◽

Cited By ~ 13

Author(s):

Sttela Dellyzete Veiga Franco da Rosa ◽

Delacyr da Silva Brandão Júnior ◽

Édila Vilela de Resende Von Pinho ◽

André Delly Veiga ◽

Luiz Hildebrando de Castro e Silva

Keyword(s):

Water Content ◽

Storage Temperature ◽

Removal Rate ◽

Coffea Canephora ◽

Development Stage ◽

Seed Vigor ◽

Drying Rate ◽

Physiological Quality ◽

Drying Rates

Desiccation tolerance in seeds depends on the species, development stage and drying conditions, especially the water removal rate. Coffea seeds are considered of intermediate performance, because they tolerate relative dehydration compared to orthodox seeds and are sensitive to low temperatures. The objective of this study was to verify the effect of different drying rates on the viability and storability of Coffea canephora seeds. A complete randomized experimental design was used, in a factorial 3 x 5 x 2 design, with three drying rates (fast, intermediate and slow), five final mean water contents after drying (51, 42, 33, 22 and 15 %) and two storage temperatures (10 and 20°C). The germination and seed vigor assessments, using radicle protrusion, cotyledon leaf opening, seedling emergence and emergence speed index, were performed shortly after drying and after two and four months storage. It was observed that with reduction in the water content there was reduction in the germination values and seed vigor, for all the drying rates. The greatest reductions in physiological quality occurred when the seeds were dried quickly and the best results were obtained at the intermediate drying rate. There was an effect of drying rate and storage temperature on the physiological quality of the seeds, and lower germination and vigor values were observed in seeds with lower water content stored at 20°C. C. canephora seeds were tolerant to desiccation down to 15 % water content and can be stored for four months at 10°C. A temperature of 20ºC can be used to store C. canephora seeds, as long as the water content is not reduced to values below 22 % water content.

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