African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

The evaluation of biological viability of potato seed tubers grown at different altitudes

Dobrivoj POŠTIĆ1*, Nebojša MOMIROVIĆ2, Zoran BROĆIĆ2, Željko DOLIJANOVIĆ2 and Goran ALEKSIĆ1      
1Institute for Plant Protection and Environment, T. Drajzera 9, 11040 Belgrade, Serbia. 2Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, University of Belgrade, Serbia.    
Email: [email protected]

  •  Accepted: 23 April 2012
  •  Published: 26 May 2012

Abstract

Considering the fact that altitude could significantly affect the quality of potato (Solanum tuberosum L.) seeds, biological viability of seed tubers and cultivar Desiree originating from three sites in Serbia, Kotraža (700 ma.s.l.), Sjenica (1300 m a.s.l.) and Golija (1600 m a.s.l.), were evaluated at two different temperatures in the light phase of sprouting - commonly at 12°C and raised 18°C, continously during five weeks, in the two-yearperiod to establish efficient and confident sprouting method. Examined seed tubers had the highest number (8.37) of sprouts and developed the longest (21.24 mm) sprouts, because of heat accumulation at higher sprouting temperature of 18°C. High sprout vigor score (4.54) also was observed at 18°C, while at 12°C the lowest (2.27) score was calculated. Sprouting capacity increased with the increased altitude and it washighest at the 1600 m a.s.l. (0.30 to 0.85%), while the lowest one was obtained at 700 m a.s.l. (0.17 to 0.64%). Sprouting capacity of tubers was greater at lower sprouting temperature (0.33 to 0.74%).

 

Key words: Biological viability, potato, tubers, sprouting.