Pré-melhoramento de uma população de melancia com sistema misto de reprodução
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Data
2006-08
Título da Revista
ISSN da Revista
Título de Volume
Editor
João Batista Duarte
Resumo
The watermelon introduced in the Northeast of Brazil
during the slavery period, presents great genetic variability. This
germplasm is important in pre-breeding programs. This work
aimed to perform pre-breeding work in a population synthesized
by crossing an accession collected access in the Northeast of
Brazil and a commercial variety. Maternal and selfed progenies
were obtained from the population. They were evaluated for:
yield and number of fruits per plant; fruit weight, format,
longitudinal and transversal diameter; flesh thickness, colour and
sugar content; number and weight of one hundred seeds per fruit.
The genetic potential of the population for watermelon
improvement has been evaluated according to the inbreeding
depression and the yield of fruits per plant, flesh color and sugar
content. The most of progenies was superior to the check for the
traits related with fruit yield. In average, the inbreeding depression
was not drastic, however in some progenies it had an effect
equivalent to that occurs in allogamous population. In 9,4% of
maternal progenies the yield of fruits per plant, the sugar content
and the flesh color had been superior to the average of the
population.
Descrição
Palavras-chave
Citrullus lanatus, Germoplasma, Depressão endogâmica, Cor da polpa, Teor de açúcar, Germplasm, Inbreeding depression, Colour fruit pulp, Sugar content
Citação
FERREIRA, Maria Aldete Justiniano da Fonseca; QUEIRÓZ, Manoel Abílio de; VENCOVSKY, Roland; DUARTE, João Batista. Pré-melhoramento de uma população de melancia com sistema misto de reprodução. Pesquisa Agropecuária Tropical, Goiânia, v. 36, n. 2, p.131-139, maio/ago. 2006. Disponível em: <https://www.revistas.ufg.br/pat/article/view/2153/2106>.