Volume 3 Issue 2
A comparative study on simple correlation coefficient values in capsularis
jute at different population levels
Author(s): K. S. KARMAKAR; C. BHATTACHARYA AND A. BAKSHI
Abstract: In this experiment, investigations were done to evaluate the extent of similarities and dissimilarities in correlation coefficient
values between different yield and yield contributing characters of capsularis jute at three population levels which were alike.
Amongst these three, A and B populations were composed of same four commercially cultivated Corchorus capsularis L.
varieties which were grown under normal and topping treated conditions respectively and the C population was comprised of A
and B populations.
This experiment revealed a few facts which come in front that though the three populations were genetically alike, still the
correlation coefficient values obtained at different population levels may be misleading to a breeder to judge the proper
relationships between the characters under study at the three population levels. The results of the experiment indicate that, it will
be safer for a plant breeder to estimate the correlation coefficient values at normal grown population (A) and the topping treated
population (B) levels separately. It will provide a breeder, the right informations in two direction of selection for two different
types of desired plant types. The correlation coefficient values of A and B populations will provide informations to a breeder for
designing or selecting a desirable plant type for higher seed production, suitable for this agroclimatic situation respectively. The
informations available from the combined population may be misleading to a breeder to select or design a particular plant type
for the two different treatment conditions. But, the cause of differences in correlation coefficient values at the three population
levels studied under this experiment remained unanswered, though all these three populations were composed of varieties with
similar genetic make up.
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