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Induced somatic mutation in mango , mangifera indica L. cv. Langra
Abstract
Dormant buds of mango (mangifera indica L. cv. Langra ) exposed to acute gamma-irradiation dosages of 1.0, 2.0, 3.0,4.0, 5.0 and 6.0 kiloroentgens (KR), were grafted on to one-year-old seedling stock. Dosages of 2.0 and 3.0 KR were found satisfactory for the purpose , as measued by bud lethality and scion growth. A bud graft from 3.0 KR bore fruits of excellent quantity . compared with the control, the fruits were heavier , largere and had more creamish- yellow pulp. None of the other morphological changes expressed by the mutant fruits , observed over three fruiting seasons, were disadvantageous . the tree habit is being further investigated before the mutant can be considered for release as an iproved cultivar.
