Commercial Floriculture

Methods of Breeding

1. Introduction:
• Simple method, introduce any new cv. from new source and evaluate for their performance.
2. Selection:
• Selection among the introduced/existing cultivars.
3. Mutation:
• Natural mutants – Dwarf habit in R.chinensis
• Chemical treated –Methyl Ethyl Sulphonate, EMS, 2, 4-D, etc.,
• Irradiation – X-rays, radio isotopes etc. Gamma-rays @3-4 KR (K. rads)
4. Hybridization:
• Hybridization is an important method for obtaining new forms of roses and almost all modern roses (HT floribundas) are developed by hybridization.
• Rose breeding now practiced extensively in many countries including UK, Australia, Canada, Germany, the Netherlands, and the united states have strong research programmes for creating new forms.
• Breeding in roses is a continues process some of the early workers in rose are Darkness, Wheatcraft, Meilland, Kordes, Morey, Ratsek, Flory Yarnell, and many other nursery men worked an breeding and roses.
• In India Dr. B.P. Pal, Shahare & Shashtri, Banda, Banerjee, Kasturirangan, M.S. Veeraghavan, M.N. Hardikar, J.P. Agarwal & Lata etc. However, B.P. Pal is the pioneer rose breeder in India.

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