CHARACTER ASSOCIATIONSHIP AND ROLE OF VARIOUS TRAITS IN DETERMINING THE NUMBER OF STIGMATIC RAYS ON THE CAPSULES OF DIFFERENT GENOTYPES OF PAPAVER SOMNIFERUM L.

In the present study a set of 108 germplasm, accessions of poppy were evaluated and data were recorded on the plant height (cm), number of capsules per plant, peduncle length (cm), number of stigmatic rays on the capsule and susceptibility to Downey mildew.
Correlation study revealed a positive association of peduncle length with plant height (0.42) and number of stigmatic rays on the capsule (0.21). Whereas, number of capsules per plant were negatively correlated with plant height (-0.48), peduncle length (-0.24) and number of stigmatic rays on the capsule
(-0.39). The genotypic correlations were further portioned in to direct and indirect effects to find out the exact path and role of these traits in determining the number of stigmatic rays on the capsules of different genotypes.
The number of capsules per plant exerts maximum negative direct effect (-0.39) on the number of stigmatic rays on the capsule.
The positive direct effect was shown by peduncle length (0.21) and plant height (0.11). Susceptibility to Downey mildew showed a negligible negative direct effect (-0.02) on number of stigmatic rays on the capsule.
A high residual effect (0.68) suggest that the many more traits can still be included in such study for getting more accurate idea about their role in determining the path for any dependent character.

International Symposium on Papaver

A.K. Gupta, R.K. Lal , O.P. Dhawan

path analysis, direct-indirect effect, correlation, linkage, poppy, standardised regression

https://doi.org/10.17660/ActaHortic.2014.1036.8