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Unformatted text preview: itro shoots of pear (Pyrus
communis L.) cultivars ‘Conference’, ‘Doyenné d’Hiver’,
‘Passe Crassane’, ‘Bartlett’, ‘Abbé Fetel,’ and ‘Butirra Precoce
Morettini’ were irradiated with a low dose of gamma rays
(3.5 Gy) (Predieri and Zimmerman, 2001). In vitro shoot
tip explants of Rhododendron varieties ‘Alfred’ and ‘Paars’
were irradiated with doses of 5 and 10 Gy of gamma rays
(Atak et al., 2011). Puchooa (2005), working with in vitro
plantlets of Anthurium variety ‘Nitta’, stated that the best
response was observed with 5 Gy of treatment in terms
of regeneration, and 10 Gy was moderately lethal to the
explants, while a 15 Gy dose was lethal. Interestingly, some
researchers reported that gamma irradiation can increase
the quality of the explants. For example, the germination
of potato microtubers derived from in-vitro–irradiated
microstems (20 and 40 Gy) increased significantly as
compared to the nonirradiated microstems (Das et al.,
2000). 4.2. Mana...
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This document was uploaded on 02/23/2014.
- Spring '14