Quantification of variability, Character Association and path analysis for Opium poppy (Papaver somniferum L.)

Abstract

Opium Poppy was important medicinal Plant for investigation to Genetic variability and nature and amount of genetic variability, correlation, and path coefficient for the thirteen characters among forty accessions of opium poppy (Papaver somniferum L.) grown was 2021-22. Morpho-metric variation detected flower colure white to red and pink, fringed and non-fringed, leaf narrow and broad, capsule green to brown color in maturity stage, and number of races. Correlation coefficient high significantly positive associated capsule index correlated with seed yield (0.678   0.688), days to maturity correlated with Papaverine (0.641    0.639), Thebaine correlated with Papaverine (0.588 0.587), Morphine correlated with Codeine (0.542    0.541) at both genotypic and phenotypic level. The Peduncle length correlated with Capsule index (0.423    0.279) show that the only at genotypic level. Days to Maturity was positive significantly associated with Morphine (0.347   0.346), Straw yield associated and Days to Maturity associated with Thebaine (0.312   0.308) (0.308    0.307) at both level genotypic and phenotypic.  On the other hand Maximum direct positive effect on capsule index, Thebaine content, Morphine content, plant height and Codeine content. The results unambiguously showed that variation in significant economic variables might assist in the selection of O. poppy genotypes for additional genetic improvement.

KEYWORDS:

Opium poppy; genotype; variability; seed yield; correlation; path coefficient.