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IN VITRO GERMINATION OF POLLEN GRAINS FOR PRUNUS PERSICA (L.) BATSCH NUCIPERSICA

Article number
962_37
Pages
261 – 267
Language
English
Abstract
The aim of this study was to develop a suitable protocol for in vitro pollen grain germination of nectarine cultivars ‘Centenária’ and ‘Colombina’. Five experiments were done to establish the ideal concentrations of sucrose, agar, calcium nitrate and boric acid as well as optimum pH and temperature values for pollen grain germination and initiation of pollen tube development.
A culture medium with 6 g L-1 of agar added with 53 to 57 g L-1 of sucrose, without calcium nitrate and boric acid at pH 6.5 and 20°C was optimal for pollen grain germination of ‘Centenária’ while 26.3°C was better for ‘Colombina’. The highest percentage of germinated pollens is obtained within six hours after inoculation for the ‘Centenária’ and 12 hours for ‘Colombina’. The highest length of pollen tube was observed 12 hours after inoculation of the pollen grains.

Publication
VII International Peach Symposium
Authors
R. Pio, E.A. Chagas, W. Barbosa, P.C. Chagas, J.E. Bettiol Neto, A.A. Neves, A.S. Carvalho, J.A. Scarpare Filho
Keywords
palinology, nectarine, tissue culture, culture medium, reagents
Full text
https://doi.org/10.17660/ActaHortic.2012.962.37
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