Rose

Rose is an important cut flower crop throughout the world in the floriculture industry. The rose has been grown for millions of years. It is a versatile plant adapted to various climatic conditions. Within one genus, we have every stage from the purely wild species, the early cultivated forms to the most highly evolved garden forms of today. The basic chromosome number is seven (haploid), and in the ordinary diploid condition 14 chromosomes are present, but there are also tetraploids, hexaploids, and octaploids form. Most of the modern roses are the result of hybridization, selection and bud sports, and induced mutations. The chapter will provide maximum information on different aspects with special reference to hybridization. Voluminous literature is now available on rose breeding artificially created by the concentrated efforts of many great rosarians using different technology.