Rome Beauty and Anna | Giberelin pada pematahan dormansi dan perkecambahan biji apel kultivar Manalagi, Rome beauty dan Anna | Giberilin on dormant fracture and germination on apple kernel at cultivar Manalagi
2010
Amrullah K.
inconnu. Tropical apple (Malus x domestic Borkh.) which grows in Malang has a high economic value and represent import apple fruit substitution into Indonesia. Up till now, the development of apple variety is very limited, there are only 3 commercial cultivar from Dutch (Manalagi, Rome Beauty and Anna). Breeding has never been reported. Evaluation of flower characteristic, seed and fruit of apple needed to efficacy for breeding program. To provide an efficient alternative for dormancy suppression, embryos can be rescued at different development stages. The objective of this work was to get a procedure of release seed dormancy from apple seed especially the variety cultivated at Malang District such as Manalagi, Rome Beauty and Anna. Seed dormancy has ranged from 35 to 63 days after harvests, respectively of the fastest is Anna, Rome Beauty and Manalagi. Inhibitions of seed with Gibberellins until 1000 mg/l resulted in enhanced germination. The acclimatization step needs to enhance growth of radical and plumose through: seed dormancy break on temperature approx. 5 deg. C, germination step at temperature approx. 20 deg. C, and seedlings period at ambient temperature atmosphere (28-30 deg. C). We also found death phenomena at seedling phase (pale green lethal seedlings) about 16-41 percent
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