International Journal of Plant Sciences

Raja R. Kanwar ¹, Ritu R. Saxena ², Ruth Elizabeth Ekka ¹

Affiliations
1 Department of Genetics and Plant Breeding, R.M.D. College of Agriculture and Research Station, Ambikapur, Surguja, C.G., IN
2 Department of Genetics and Plant Breeding, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G., IN

Abstract

Correlation and path co-efficient analysis was studied in 36 genotypes of linseed. The correlation studies indicated that seed yield per plant had significant positive correlation with days to maturity, number of primary branches per plant, number of capsules per plant, number of seeds per capsule and biological yield. Hence, improvement of seed yield per plant can be achieved by improving these characters. Path co-efficient analysis revealed that harvest index, plant height, number of primary branches per plant, number of capsules per plant and biological yield showed high positive direct effect on seed yield per plant and selection for these characters would lead to increase in yield.

Keywords

Correlation, Path Co-efficient Analysis, Association Analysis, Linseed

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Ruth Elizabeth Ekka ¹, A. K. Sarawgi ², Raja R. Kanwar ¹

Affiliations
1 Department of Genetics and Plant Breeding, R.M.D. College of Agriculture and Research Station, Ambikapur, Surguja, C.G., IN
2 Department of Genetics and Plant Breeding, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G., IN

Abstract

The D² analysis allowed the 96 genotypes of rice to be identified into nine distinct clusters. Among the different clusters, cluster VII contained maximum of 20 genotypes and cluster V contained a minimum of 6 genotypes. The cluster IV was characterized by highest mean value for days to 50 per cent flowering, plant height, number of filled grains per panicle and grain yield per plant. The clusters VI and II had highest mean value for panicle length and head rice recovery percentage, respectively. The cluster IX was characterized by highest mean value for number of effective tillers per plant, kernel length and milling percentage. The highest inter cluster distance was observed between cluster IV and VIII while the lowest between III and VI. The lowest and highest intra cluster distance was observed in cluster III and VI, respectively. There is good scope to bring about improvement through hybridization and selection by crossing accessions from different clusters.

Keywords

Genetic Divergence, D² Technique, Cluster, Rice Germplasm

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