The aim of the study was to investigate heavy metal accumulation in wheat (Triticum aestivum) and oat (Avena sativa), and other physiological and biochemical parameters affected by these heavy metals. The data revealed that maximum plant fresh weight and plant dry weight was recorded for oat and minimum plant fresh weight and plant dry weight was noted for wheat (Triticum aestivum). The data also indicated that higher concentration of proline and DNA concentration was noted in wheat (Triticum aestivum) while lowest in oat (Avena sativa) plant. While DNA purity was highest in wheat (Triticum aestivum) and found lowest in oat (Avena sativa). Highest concentration of protein was recorded by wheat (Triticum aestivum) while lowest protein concentration was noted for oat (Avena sativa). The data further showed that wheat (Triticum aestivum) recorded maximum Cd concentration while minimum Cd concentration was noted in oat (Avena sativa). Highest concentration of Cr was noted in oat while minimum Cr concentration was recorded by wheat (Triticum aestivum). A maximum level of Pb was shown by oat (Avena sativa) while minimum levels of Pb were noted in wheat (Triticum aestivum). So oat (Avena sativa) plant is the higher accumulator of heavy metals i-e Cr and Pb while wheat (Triticum aestivum) accumulates Cd in highest concentrations.

This research work was carried out at The University of Agriculture, Peshawar during crop season year 2011-12. The objectives were to study the genetic variability and correlation among different traits in Brassica napus L. Data were recorded on agronomic and quality traits. The breeding material comprised 8 genotypes of Brassica napus L. These genotypes were evaluated in replicated trial in a randomized complete block design (RCBD) with three replications. Results revealed highly significant differences among the genotypes for most of the traits. Non-significant differences were, however, observed among the genotypes for primary branches plant-1 and pods plant-1. Genotype 1 was found superior for most of the traits i.e maximum oleic acid content etc. Correlation analysis presented highly significant positive phenotypic correlation of plant height with pods main raceme-1 and pod length seed yield exhibited significant positive phenotypic correlation with pods plant-1, protein content and moisture content. Similarly significant negative phenotypic correlation of oleic acid content with oil and erucic acid content was also observed. From the results it can be concluded that Genotype 2 can be used for developing superior genotypes for seed yield, seed pod-1 and protein content while Genotype 7 can be used for yielding high oil content. The significant and positive correlation of seed yield plant-1 with pods plant-1 and protein content was important in making indirect selection for seed yield.