Viabilidade de sementes de guabijuzeiro em armazenamento

Hossel, Jéssica Scalet Alves de Oliveira; Hossel, Cristiano; Júnior, Américo Wagner; Fabiane, Keli Cristina; Citadin, Idémir

doi:10.5935/paet.v9.n02.09

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…sendo que protege as mesmas do ataque de insetos e roedores (Hartmann et al 2002), bem como evita a absorção ou perda de umidade das sementes para o ambiente (Labbé & Villela 2012), mantendo, dessa forma, a viabilidade das mesmas por mais tempo. Os dois lotes de sementes foram armazenados nos mesmos frascos de vidro snap cap, somente o que diferiu foi o local de armazenamento, visto que possivelmente, ocorreu redução no metabolismo e também menor perda de água para o ambiente (Hossel et al 2016) para as sementes armazenadas em ambiente refrigerado, já que apresentaram maior porcentagem de germinação. A redução da temperatura, associada ao nível de umidade adequada possibilita aumentar o tempo de conservação das sementes, pois este arranjo reduz a deterioração interna, diminuindo o consumo de reservas (Moura et al 2015;Martins et al 2012).…”

Section: Resultados E Discussão Experimentounclassified

Propagação in vitro de Angelonia integérrima

et al. 2019

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Resumo Devido à dificuldade de obtenção de mudas de Agelonia integerrima, espécie com potencial ornamental, a partir de sementes, por métodos convencionais, foram desenvolvidos estudos com o objetivo de testar a viabilidade da produção de mudas in vitro. Foram conduzidos quatro experimentos: a) germinação de sementes armazenadas em dois locais (ambiente refrigerado e bancada de laboratório) e concentrações de sais (100, 75 e 50%) do meio MS; b) multiplicação com benzilaminopurina (BAP) (0,0, 0,5 e 1,0 mg L-1) e ácido naftalenoacético (ANA) (0,0, 0,1 e 0,5 mg L-1); c) enraizamento in vitro com ácido indolbutírico (AIB) (0; 0,25; 0,50; 0,75 e 1,0 mg L-1); d) aclimatização das mudas. Sementes armazenadas sob ambiente refrigerado apresentaram maior porcentagem de germinação, índice de velocidade de germinação e de plântulas formadas. A germinação não foi afetada pela concentração de sais do meio. Para a multiplicação, houve interação entre as concentrações de BAP e ANA, recomendando-se utilizar 1,0 mg L-1 de BAP e 0,1 mg L-1 de ANA. No enraizamento, foi ajustada uma equação quadrática para as variáveis: porcentagem de formação de calo e enraizamento, sendo que a concentração de 0,83 mg L-1 é o ponto de máxima resposta para a porcentagem de enraizamento. A espécie apresentou 50,8% de aclimatização.

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Section: Resultados E Discussão Experimentounclassified

Propagação in vitro de Angelonia integérrima

et al. 2019

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“…Relative humidity is related to the water content of seeds, while temperature influences the speed of biochemical processes and indirectly interferes with the water content of seeds (Carvalho & Nakagawa, 2012). However, beyond the storage period, viability responses may vary depending on the species and seed sensitivity (Hossel et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Physiological quality of ‘BRS’ passion fruit seeds grown at different altitudes and storage environments

Lima,

Guilhen,

Maciel

et al. 2023

Com. Sci.

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The aim of this work was to study the physiological quality of ‘BRS’ passion fruit seeds grown at different altitudes stored in cold chamber and in natural environment for six months. Hybrid passion fruit seeds (BRS Gigante Amarelo, BRS Sol do Cerrado and BRS Rubi do Cerrado) grown at three altitudes (104; 711; 1016 meters) in the southern region of the state of Espírito Santo were used. Germination was carried out in germitest paper rolls, placed in BOD-type germination chambers at temperature of 20-30 ºC. The following parameters were analyzed: germination, germination speed index, shoot and root length and dry mass of seedlings. The experimental design used was completely randomized in a factorial scheme with split plot in time 4x(3x3) (four bimonthly analyses x three hybrids x three altitudes), with two independent storage environments and three replicates of 100 seeds. Hybrid Passiflora edulis f. flavicarpa seeds can be stored in natural environment or cold chamber. Hybrid yellow passion fruit seeds grown at altitudes of 104 and 711 meters show higher germination and vigor percentages. Hybrid ‘Gigante Amarelo’ seeds had lower averages for variables under study, regardless of altitude. Hybrid ‘Rubi do Cerrado’ seeds grown at altitude of 1016 meters and hybrid ‘Sol do Cerrado’ seeds grown at altitudes of 104 and 711 meters have higher germination and vigor percentages and can be stored for 180 days in natural environment or cold chamber without viability loss. Flavicarpa can be stored in natural environment or cold chamber. Hybrid yellow passion fruit seeds grown at altitudes of 104 and 711 meters show higher germination and vigor percentages. Hybrid ‘Gigante Amarelo’ seeds had lower averages for variables under study, regardless of altitude. Hybrid ‘Rubi do Cerrado’ seeds grown at altitude of 1016 meters and hybrid ‘Sol do Cerrado’ seeds grown at altitudes of 104 and 711 meters have higher germination and vigor percentages and can be stored for 180 days in natural environment or cold chamber without viability loss. Passiflora edulis f. flavicarpa can be stored in natural environment or cold chamber. Hybrid yellow passion fruit seeds grown at altitudes of 104 and 711 meters show higher germination and vigor percentages. Hybrid ‘Gigante Amarelo’ seeds had lower averages for variables under study, regardless of altitude. Hybrid ‘Rubi do Cerrado’ seeds grown at altitude of 1016 meters and hybrid ‘Sol do Cerrado’ seeds grown at altitudes of 104 and 711 meters have higher germination and vigor percentages and can be stored for 180 days in natural environment or cold chamber without viability loss. Hybrid ‘Gigante Amarelo’ seeds had lower averages for variables under study, regardless of altitude. Hybrid ‘Rubi do Cerrado’ seeds grown at altitude of 1016 meters and hybrid ‘Sol do Cerrado’ seeds grown at altitudes of 104 and 711 meters have higher germination and vigor percentages and can be stored for 180 days in natural environment or cold chamber without viability loss. Hybrid ‘Gigante Amarelo’ seeds had lower averages for variables under study, regardless of altitude. Hybrid ‘Rubi do Cerrado’ seeds grown at altitude of 1016 meters and hybrid ‘Sol do Cerrado’ seeds grown at altitudes of 104 and 711 meters have higher germination and vigor percentages and can be stored for 180 days in natural environment or cold chamber without viability loss.

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“…Information that support the production of seedlings of this species is scarce and the works found in the literature are on its chemical composition and the physiological quality of the guabijuzeiro seeds in order to prolong their viability during storage (Fior et al, 2010;Hossel et al, 2016).…”

Section: Introduction and Objectivesmentioning

confidence: 99%