DefinePK

Abstract

This study was conducted during the year 2018 and 2019 in the Oilseeds Research Institute, AARI, Faisalabad, Pakistan, to assess trait association among 30 sesame genotypes. Analysis of variance, correlation analysis and path coefficient analysis were deduced from the acquired data. Analysis of variance presented that all characters were very different from each other. The detail examination of two years combined data showed that at genotypic as well as phenotypic level (PH) height of plant, (NCP) No. of capsule per plant, (NBP) No. of branches per plant and (1000SW) 1000 seed weight illustrated substantial positive correlation with SY. DF50 and days to maturity showed negative and substantial contribution to Seed Yield (SY). Furthermore, path analysis, utilizing grain yield as a reliant variable disclosed that PH imparts positive direct effect on SY, followed by 1000SW, NBP and NCP but these characters (1000SW, NBP and NCP) had a lower direct impact on seed yield (SY). DF50 had the maximum negative direct effect on seed yield and DM also indicated negative direct effect on SY. In path analysis, similar effective indirect effect was detected for (PH) height of plant via (NBP) No. of branches per plant and (NCP) No. of capsule/plant. (NCP) No. of capsule/plant with (NBP) No. of branches/plant displayed the greatest indirect effect on SY. Similarly, for (NBP) No. of branches/plant, (NCP) No. of capsule /plant showed significant positive indirect effect on (SY) Seed yield. (1000SW) thousand seed weight had high indirect effect of (NCP) No. of capsules/plant on (SY) seed yield plant.
Keywords: Correlation, yield attributes, genetic variability, oilseed crop.