2004
DOI: 10.1590/s0100-204x2004001200011
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Germinação de sementes de genótipos de maracujazeiro

Abstract: Resumo -O objetivo deste trabalho foi avaliar a germinação de sementes de 22 progênies de meios-irmãos e duas cultivares de maracujazeiro (Passiflora edulis Sims f. flavicarpa Degener) e submeter 6 desses genótipos a diferentes tempos de embebição. Foram conduzidos dois experimentos, sendo que no primeiro foi utilizado o delineamento inteiramente casualizado, com quatro repetições, considerando-se cada genótipo como um tratamento. No segundo experimento, utilizou-se o mesmo delineamento experimental, num fator… Show more

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Cited by 34 publications
(27 citation statements)
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“…It is noteworthy that the temperature of 35 °C was the one that provided the highest germination rate concentrated in a shorter period of time, which results in a more uniform emergence and less exposure of the seeds to pathogens, as mentioned by Carvalho and Nakagawa (2000). According to Alexandre et al (2004) the uniformity of the germination in passion fruit seeds can more efficiently provide seedling production on a commercial scale.…”
Section: Resultsmentioning
confidence: 99%
“…It is noteworthy that the temperature of 35 °C was the one that provided the highest germination rate concentrated in a shorter period of time, which results in a more uniform emergence and less exposure of the seeds to pathogens, as mentioned by Carvalho and Nakagawa (2000). According to Alexandre et al (2004) the uniformity of the germination in passion fruit seeds can more efficiently provide seedling production on a commercial scale.…”
Section: Resultsmentioning
confidence: 99%
“…A propagação do maracujazeiro pode ser realizada sexuadamente, ou assexuadamente, por meio de enxertia, estaquia ou cultura de tecidos (ALEXANDRE et al, 2004). No Brasil, a propagação assexuada é pouco utilizada em escala comercial, principalmente devido aos maiores custos de produção e maior tempo requerido na sua formação, ou seja, em torno de 21 semanas até o plantio em local definitivo, enquanto plantas originárias de sementes levam em torno nove semanas (SIQUEIRA; PEREIRA, 2001).…”
Section: Introductionunclassified
“…Those results point out the occurrence of effect from the genetic material origin and, in this case, only six (2, 9, 13, 14, 21 and 24) of the 29 progenies under study kept high viability of the seeds. Alexandre et al (2004) also verified that speed and emergency percentage of the plantlets were affected by the genotype. Second (NEGREIROS et al, 2008), among the features that contributed most to genetic diversity has been the emergence percentage and emergence speed index.…”
Section: Resultsmentioning
confidence: 62%
“…Alexandre et al (2009) report the importance in using the natural genetic variability of the commercial species P. edulis f. flavicarpa in genetic improvement programs. Alexandre et al (2004) and Negreiros et al (2008) found genetic variability affecting both percent germination and emergency speed in Passiflora edulis f. flavicarpa.…”
Section: Introductionmentioning
confidence: 97%