African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6693

Full Length Research Paper

Physiological maturity of seeds and colorimetry of yellow passion fruit (Passiflora edulis f. flavicarpa Degener)

Andre Gustavo Battistus
  • Andre Gustavo Battistus
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Felipe Fuchs
  • Felipe Fuchs
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Ricardo Felipe Braga de Sousa
  • Ricardo Felipe Braga de Sousa
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Marlene de Matos Malavasi
  • Marlene de Matos Malavasi
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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João Alexandre Lopes Dranski
  • João Alexandre Lopes Dranski
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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eandro Rampim
  • eandro Rampim
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Lucas Guilherme Bulegon
  • Lucas Guilherme Bulegon
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Vandeir Francisco Guimarães
  • Vandeir Francisco Guimarães
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Thaísa Muriel Moranza
  • Thaísa Muriel Moranza
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Mônica Anghinoni Müller
  • Mônica Anghinoni Müller
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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Paulo Ricardo Lima
  • Paulo Ricardo Lima
  • State University of West Paraná, Marechal Cândido Rondon ? Paraná ? Brasil, street Pernambuco, Number 1777, Zip Code: 85960-000, Box: 91, Center, Brazil.
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  •  Received: 17 July 2014
  •  Accepted: 16 September 2014
  •  Published: 01 October 2014

Abstract

The passion fruit is among the major fruit crops grown in Brazil, being propagated by seeds due to ease of implementation. However, obtaining seeds of quality is associated with the proper time of collection. Thus, the objective was to determinate the physiological maturity of seeds of passion fruit (Passiflora edulis f. flavicarpa Degener) using the external color of the fruit. Seeds from passion fruit were collected from four plants. It was adopted a completely randomized design, separating the fruit into four stages of maturation, based on color of the epicarp and quantified as Munsell color chart and refractive index analysis using digital colorimeter. Seeds of completely green fruit did not germinate. Seeds from fruits with advanced stage of maturation tending to wilt, staining with 5 Y 7/10 according to the Munsell color chart and measures of refractive index falling, showed better physiological potential according to the integrity of their membranes, accumulation of dry matter and performance in tests of vigor. This stage was identified as the stage of physiological maturity of the passion fruit.

 

Key words: Maturation stage, germination, electric conductivity, vigor.