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The present study was conducted to find out correlation and path analysis for 10 yield and yield attributing traits using 159 diverse pea genotypes. Correlation studies revealed that the days to 50% flowering, node at which 1st pod appears, number of pods/plant, number of seeds/pod, pod length, pod weight and days to 1st picking had significant and positive correlation with total yield/plant while, plant height and shelling percentage were negatively correlated with total yield/plant. The inter-correlation was observed between days to 50% flowering, days to 1stpicking and node at which 1stpod appears; shelling percentage with number of seeds/pod and pod length; plant height with number of pods/plant and days to 1st picking. It is concluded that there is positive and intercorrelation of total yield/plant with the number of pods/plant, pod length, number of seeds/pod, days to 50% flowering, days to 1stpicking. The positive association suggested that selection should be oriented towards more number of pods per plant, pod length, more number of seeds per pod which would consequently leads to higher pod yield per plant. The Path analysis studies revealed that the number of pods per plant exhibit highest positive effect on yield per plant. [ABSTRACT FROM AUTHOR]

Five different rapeseed genotypes were tested. The following traits were considered: seed yield, seed germination, seed oil content, 1000 seed weight and seed protein content and they were used to determine whether there is significant or nonsignificant correlation. Highest average results were determined in genotype G-3 (yield 2.544 kg; germination 90%; 1000 seed weight 4,30 g; oil content 45,31% and protein content 19,83%) while G-5 (1.838 kg; 87%; 3,50 g; 44,77% and 17,28%) had the lowest average result of observed parameters. Highly significant positive correlations were found while comparing seed yield with 1000 seed weight (0.753**) and protein content (0.726**). High significant positive correlation were also determined comparing seed germination with 1000 seed weight (0.832**) and protein content (0.892**). Also high significant correlation was determined comparing 1000 seed weight and protein content (0.812**). Positive significant correlations were found by comparing seed yield and seed germination (0.644*). Path analysis indicated highest significant positive direct effect of 1000 seed weight (0.716**) and protein content (0.666**) on seed yield. High but negative significant value had seed germination (-0.645**). In the study of indirect effects on seed yield, none of significant effects were determined. The study of direct effects on oil content showed that the seed germination had high significant positive effect (-1.296**) on oil content. Significant but hot high effect has seed yield (0.556*). In other two traits it was determined negative high significant effects (1000 seed weight - 0.797** and protein content - 0.717**) on seed oil content. The existence of indirect significant effects on oil content in four cases was determined. [ABSTRACT FROM AUTHOR]

Chickpea is the second most important pulse crop in the world after dry bean. The aim of this study was to estimate the correlation coefficients and path analysis between seed yield, morphological traits and yield components. Twenty five chickpea genotypes, including advanced lines and commercial varieties, were grown under dryland condition at Brojerd Agricultural Research Station (west of Iran) during two seasons (2012-2013 and 2013-2014). The field experiment was arranged in a randomized complete block design (RCBD) with four replications. Combined analysis of variance revealed that the studied genotypes differed significantly in seed yield, days to flowering, days to maturity, flowering period, canopy height, number of pods per plant, biological yield and harvest index. The correlation coefficients indicated that there were significant and positive correlations between seed yield and number of pods per plant and harvest index in two years. Path analysis indicated that days to flowering, days to maturity, canopy height and width, number of pods per plant and flowering period directly and indirectly affected seed yield. Therefore, this study suggested that chickpea improvement program could be based on these traits, especially number of pods per plant and canopy height, according to positive direct effect on seed yield over two years, as selection criteria. [ABSTRACT FROM AUTHOR]

This research aimed to investigate the genetic diversity based on the pattern of seed storage protein and to establish correlation between alkaloid and seed protein content among 124 germplasm lines of opium poppy (Papaver somniferum L.). Twenty seven polypeptide bands in range of 6 to 205 kDa were recorded. Similarity index was calculated by using Jaccard's Similarity index and cluster analysis was performed using UPGMA model. Polymorphism was observed in three variable regions i.e., high, medium and low molecular weight, among which bands of 10.4, 20, 22, 24, 30, 32, 33, 49 and 205 kDa's were common in all the germplasms but other bands showed variation. All the 124 germplasms were broadly grouped into 13 clusters based on average linkage method. None of the trait showed significant correlation with seed protein content. The differential protein profile of the germplasms revealed wide variability and diversity among the studied germplasms which could be further used in hybridization programme to obtain maximum gain. [ABSTRACT FROM AUTHOR]