The effect of gamma irradiation on the growth of mango grafted material.
Karsinah, Indriyani N. L. P., Sukartini
Author Affiliation: Indonesian Agency for Agricultural Research and Development, Indonesian Tropical Fruits Research Institute, Jl. Raya Solok-Aripan Km. 8 Solok, West Sumatera, Indonesia.
Journal of Agricultural and Biological Science 7 : 840-844
Abstract : Mutation breeding refers to development of new cultivars or germplasm by the deliberate production and selection of new mutations. The objective of this research was to examine the effect of different doses of ?-irradiation on the growth of mango (Mangifera indica L.) grafted material. The experiment was conducted at Subang Experimental Field, West Java, from May to December 2009. The research was arranged in a Randomized Complete Block Design with five treatments and three replications, and each treatment consisted of 40 scions. The treatments were doses of ?-rays irradiation, consist of: 0 (non-irradiated as control), 20, 40, 60, and 80 Gy. Mango scions of cv. 'Arumanis' were irradiated with ?-rays at CRDIRT-BATAN Jakarta and then grafted on one year old of mango rootstocks at Subang Experimental Field. The parameters measured were percentage of graft success, time of bud break, shoot length, number of bud that grew on the scion, number of leaves, chlorophyll content, and number of stomata. The results indicated that ?-irradiation doses influence the percentage of graft success, bud break, percentage of grafted material success, shoot length, bud number, total leaf number, and chlorophyll content. Mango grafted materials that can grow were obtained from 0-40 Gy ?-irradiation. Doses of ?-irradiation beyond 60 Gy was lethal to mango cv. 'Arumanis'.