Study On Correlation And Heritability Analyses For Morphological And Yield Associated Traits In Mustard (BRASSICA JUNCEAL.) Genotypes

Abstract

Mustard is an important oil seed crop in Pakistan, however there is limited information about improved genotypes of mustard. So, we examined the correlation and heritability of ten genotypes including 69-9172, Gaj-Sarhein, A.H. 2001, NRT-02/9, UCD-11/1, Canola-II, P-23-R.2, UCD-22, P-62. R5 and Early Raya at Oilseeds Research Institute (ARC) Tando jam. Result showed significant difference (P<0.05) for growth and yield characteristics among the genotypes. Days to 75% flowering showedhighly positive and significant relationship with days to 90% maturity, plant height and seed yield plant^-1. A significant and positive association was found with the number of branches plant^-1 and number of pods plant^-1. Days to 90% maturity was positive and highly significant with the number of branches plant^-1, number of pods plant^-1 and seed yield plant^-1. Plant height resulted in the highly positive significant correlation with the number of branches plant^-1 and seed yield plant^-1 with correlation coefficient value of r = 0.7361** and 0.6024** respectively. The positive significant association was observed with the number of pods plant^-1 and oil content. Number of branches plant^-1showed highly significant and positive association with number of pods plant^-1, seed yield plant^-1 and seed index. Number of pods plant^-1 showed the highly significant and positive relationship with seed yield plant^-1. Seed yield plant^-1resulted highly significant and positive relationship with seed index and positively significant with oil content. High heritability ratios for studied characters suggested that the observed differences were under the genetic control and were less affected by environment.