Studies on Genetic Divergence in Safflower (Carthamus tinctorius L.)
Author:
N Mukta1,, V Venkata Gopinath2, N Sreedhar2
Total Page Count: 3
DOI:
Page Number: 118 to 120
1Directorate of Oilseeds Research, Rajendranagar, Hyderabad-500030, Andhra Pradesh, India.
2Department of Genetics and Plant Breeding, ANGRAU, Rajendranagar, Hyderabad-500030, Andhra Pradesh, India.
Abstract
Euclidean cluster analysis was used for the characterization of 36 exotic germplasm accessions of different geographical origin and four check varieties of safflower (Carthamus tinctorius L.). A quantitative assessment of genetic divergence for eleven characters using Mahalanobis D2 statistics revealed the presence of considerable genetic diversity.The forty genotypes were grouped into seven well defined clusters with variable number of genotypes. The inter-cluster distances (D value) ranged from 8.27 to 25.68. Among the plant attributes, hull content, number of seeds in main capitulum, seed yield/plant and number of effective capitula were found to be important in the present study. Accessions GMU 848, 4097, 4095, 5110 from Cluster V and GMU 1727, 1747, 5111 from Cluster VII were identified as potential parents in future hybridization programmes for genetic improvement in safflower.
Keywords
Safflower, Genetic divergence, Cluster, Cluster means
