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Advances in breeding of chrysanthemum: A review

Chrysanthemum is among the most interesting and possibly the oldest one among the ornamental plants possessing wide genetic diversity. In recent years, researchers have used various conventional and non-conventional breeding techniques to understand the classification studies, correlation and association both at morphological and molecular level, with the wild relatives for introducing various ornamental traits from wild types to cultivated ones. Major traits which are targeted through biotechnological approaches includes development of novel flower colours, altered flower and plant morphology, insect-pest and disease resistance and enhanced post-harvest attributes. Development of varieties with novel traits provide marketing opportunities for retailers and cautious selection can increase both productivity as well as improving the quality of the products. So an attempt was made to condense the available literature that has been published on chrysanthemum breeding with more emphasis on improvement in floriculture point of view. In recent years, important strides were made in molecular breeding, particularly targeting the unusual colours through transgenics and understanding of flower genetics and flowering regulation. | EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 08 2019 Journal homepage http www.ijcmas.com Review Article https doi.org 10.20546 ijcmas.2019.808.193 Advances in Breeding of Chrysanthemum A Review Sangeeta Kumari S.R. Dhiman and Y.C. Gupta Department of Floriculture and Landscape Architecture Dr. YS Parmar University of Horticulture and Forestry Nauni Solan - 173 230 Himachal Pradesh India Corresponding author ABSTRACT Keywords Conventional breeding Biotechnology Agronomic traits Transformation Article Info Accepted 12 July 2019 Available Online 10 August 2019 Chrysanthemum is among the most interesting and possibly the oldest one among the ornamental plants possessing wide genetic diversity. In recent years researchers have used various conventional and non-conventional breeding techniques to understand the classification studies correlation and association both at morphological and molecular level with the wild relatives for introducing various ornamental traits from wild types to cultivated ones. Major traits which are targeted through biotechnological approaches includes development of novel flower colours altered flower and plant morphology insect-pest and disease resistance and enhanced post-harvest attributes. Development of varieties with novel traits provide marketing opportunities for retailers and cautious selection can increase both productivity as well as improving the quality of the products. So an attempt was made to condense the available literature that has been published on chrysanthemum breeding with more emphasis on improvement in floriculture point of view. In recent years important strides were made in molecular breeding particularly targeting the unusual colours through transgenics and understanding of flower genetics and flowering regulation. Introduction Chrysanthemum Chrysanthemum morifolium Ramat. is one among the most versatile and internationally recognized .