Influence of the temperature in germination of seeds of jabuticaba tree

Andrade, Renata Aparecida de; Martins, Antônio Baldo Geraldo

doi:10.1590/s0100-29452003000100056

Cited by 11 publications

(6 citation statements)

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“…The percentage of seedling emergence was higher (over 83%) in the 'CL4', 'CL5', ' PB3' and 'PB4' genotypes and all from the 'CV' site (except for 'CV4' and 'CV8'). Andrade and Martins (2003) detected variability in the germination percentage between three different jabuticaba genotypes, grown in Jaboticabal, São Paulo, ranging from 41 to 58%. In this experiment, the variability was even greater, since emergence ranged from 10.5 to 95.8%.…”

Section: Resultsmentioning

confidence: 93%

Genetic dissimilarity among jabuticaba trees native to southwestern Paraná, Brazil

et al. 2011

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-Knowledge on the genetic diversity within and between genotype groups is of great importance for breeding programs. The purpose of this study was to estimate the genetic dissimilarity among 36 native jabuticaba trees (Plinia cauliflora) from five sites in the southwestern region of Paraná, Brazil. Sixteen fruit traits were analyzed, based on multivariate techniques (canonical variables, Tocher and UP-GMA), using Mahalanobis´ distance as dissimilarity measure. By the techniques of clustering and graphic dispersion, together with the comparison of means, the genetic diversity among native jabuticaba trees was efficiently identified, indicating a high potential of these genotypes for breeding programs. The traits of greatest importance for dissimilarity were percentage of pulp and of skin, which are easily measured. The clustering structure is related to the collection sites and for breeding programs, genotypes from different sites should be crossed to generate progenies to be tested. Genotypes 'CV5' and 'VT3' should be conserved in genebanks, due to its important agronomic traits.

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Section: Resultsmentioning

confidence: 93%

Genetic dissimilarity among jabuticaba trees native to southwestern Paraná, Brazil

et al. 2011

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“…Thus, the seed propagation still prevails, despite all the implications that this technique may have. There are several reports that describe the influence of temperature, light, substrate, humidity and the fruit maturation stage in the germination processes of some of these species (VALIO;FERREIRA, 1992;MARTINS, 2003;ALEXANDRE et al, 2004;SENA et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Dormancy in native fruit seeds of the Brazilian South Region

et al. 2021

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The aim of the present study was to investigate whether seeds from six native fruit species ofthe South Brazilian regionhad any type of dormancy, as well as, to verify if they havephotoblastism. The work was carried out at the Plant Physiology Laboratoryofthe Federal Technological University of Paraná –Câmpus Dois Vizinhos, Paraná State, Brazil. The influence of photoperiod factors and techniques for overcoming dormancy were tested on the germination of Eugenia uniflora L.(Surinan cherry), Plinia peruviana(native jabuticaba), Plinia cauliflora(hybrid jabuticaba), Eugenia involucrataDC. (Rio Grande cherry), Myrcianthes pungens(guabiju) and Campomanesia guazumifolia(sete capoteiro). The seeds were exposed in a condition of total darkness or photoperiod of 24 hours, being the levels of one of factors tested. The techniques for breaking dormancy tested werethe immersion in gibberellic acid solution (200 mg L-1); stratification at 5°C for 30 days; immersion in water at room temperature for 24 hours; immersion in hot water (80°C) for five minutes; immersion in sulfuric acid solution (96%) for five minutes; and manual physical scarification with 120 grit sandpaper. The seeds were also tested without using any technique, making up the controlstreatments with or without light. The experimental design was completely randomized, in a 2 x 7 factorial scheme (luminosity x treatment for breaking dormancy), with four replications of 100 seeds. After 60 days, germination (%), percentage of accumulated germination, germination speed index and average germination time were analyzed. The seeds of most of the studied native species do not present dormancy or the effect of photoblastism, except for “sete capoteiro”seedswho are supposed to have morphophysiological dormancy, with negative photoblastism. The use of hot water or sulfuric acid in the seeds of native fruit trees is not recommended.

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“…Também Andrade (2003), ao testar a influência da temperatura na germinação de sementes de jabuticabeira, observou um PG de 76,62% em temperatura de 15 o C, em substrato de vermiculita, utilizando sementes completamente limpas, corroborando os resultados obtidos neste trabalho para o T1 aos 40 dias após semeadura, que foi de 76%.…”

Section: Pg 40 Pg 60 Pg 90 Tratamento --------% --------Ive Nfunclassified

GERMINAÇÃO DE SEMENTES E QUALIDADE DE MUDAS DE Plinia trunciflora (JABUTICABEIRA) EM FUNÇÃO DE DIFERENTES TRATAMENTOS PRÉ-GERMINATIVOS

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Triches²,

Grossi³

et al. 2010

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A formação de mudas florestais de boa qualidade morfofisiológica envolve os processos de germinação de sementes, que por sua vez é dependente de potencialidades genéticas. Algumas ações no tratamento prévio de sementes podem auxiliar na germinação. Este trabalho objetivou avaliar a germinação de sementes e qualidade inicial de mudas de jabuticabeira sob diferentes tratamentos pré-germinativos: T1 -sementes completamente limpas; T2 -sementes oxidadas com o fruto macerado; T3 -sementes com polpa; e T4 -semeadura do fruto com semente. O experimento foi conduzido durante o período de outubro de 2007 a agosto de 2008. O delineamento experimental foi inteiramente casualizado, com quatro repetições. Realizou-se a avaliação da percentagem de germinação aos 40, 60 e 90 dias da semeadura, e o cálculo do índice de velocidade de emergência realizado ao final do período. Aos 306 dias após a semeadura foram avaliados os parâmetros morfológicos das mudas, suas relações e o índice de qualidade de Dickson para mudas. Comprovouse que as sementes completamente limpas (T1) ou com endocarpo aderido (T3) foram os tratamentos prévios mais eficazes para os processos de germinação e qualidade da muda formada. Palavras-chave: Jabuticaba; frutífera nativa; propagação sexuada; produção de mudas. Abstract Germination of seeds and seedling quality of Plinia trunciflora under different pre-germinative treatments.The formation of forest seedlings of good morphophysiological quality involves processes of seed germination, which in turn is dependent on genetic potential. Some actions in the pretreatment of seed germination can help. This study aimed to evaluate the germination and initial quality of seedlings under different treatments jabuticaba pre-germinated: T1 -seeds thoroughly cleaned; T2 -seeds oxidized with the fruit macerate; T3 -pulp with seeds, and T4 -the fruit with seed sowing. The experiment was conducted during the period from October 2007 to August 2008. The experimental design was a completely randomized with four treatments in 4 replicates. It was calculated of the percentage of germination at 40, 60 and 90 days, and the analysis of the index emergency speed at the end of the period. At 306 days after sowing they were assessed the morphological parameters of seedlings, their relationships and quality index of Dickson for seedlings. It has been proved that the seeds thoroughly cleaned and cored joined with the previous treatments were the most effective in the process of germination and seedling quality.

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Influence of the temperature in germination of seeds of jabuticaba tree

Cited by 11 publications

References 1 publication

Genetic dissimilarity among jabuticaba trees native to southwestern Paraná, Brazil

Genetic dissimilarity among jabuticaba trees native to southwestern Paraná, Brazil

Dormancy in native fruit seeds of the Brazilian South Region

GERMINAÇÃO DE SEMENTES E QUALIDADE DE MUDAS DE Plinia trunciflora (JABUTICABEIRA) EM FUNÇÃO DE DIFERENTES TRATAMENTOS PRÉ-GERMINATIVOS

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