tailieunhanh - Correlation studies in Gladiolus

A study on association among various characters in 30 gladiolus genotypes revealed that significant positive association was noticed both at phenotypic and genotypic level for number of florets per spike with distance between two florets, number of florets remain open at a time and bloom life whereas length of spike had significant positive association with rachis length, number of floret per spike, distance between two florets and number of florets remain open at a time. | Original Research Article https Correlation Studies in Gladiolus S. K. Patra1 and C. R. Mohanty2 1 Department of Floriculture and Landscaping College of Agriculture . Bhubaneswar-751003 India 2Department of plant breeding and genetics College of Agriculture . Bhubaneswar-751003 India Corresponding author ABSTRACT Keywords Correlation florets genotypes Article Info Accepted 22 January 2019 Available Online 10 February 2019 A study on association among various characters in 30 gladiolus genotypes revealed that significant positive association was noticed both at phenotypic and genotypic level for number of florets per spike with distance between two florets number of florets remain open at a time and bloom life whereas length of spike had significant positive association with rachis length number of floret per spike distance between two florets and number of florets remain open at a time. Introduction Gladiolus a member of the family Iridaceae and subfamily Ixoideae is one of the most popular ornamental bulbous plants grown commercially in many parts of the world for its fascinating flowers with variety of colours huge form of florets and good keeping quality. It stands fourth in the international cut flower trade after carnation rose and chrysanthemum. The demand for new quality cultivar is ever increasing all over the world and this demand is seen in our country also. Every now and then a superior cultivar replaces the existing one which is in many respects very similar to it. This is a continuous process and the demand for still better cultivars is there all the time. Besides the cultivars lose their existence in the course of time. Thus the situation demands to continuously breed new cultivars. It is vital to have understanding of the association between the component characters and their relative contribution to economic yield Length of spike size of floret and number of florets per spike to bring about a .