Relationships among economic characters in lentil

Abstract

There are several reports of the association among lentil characters based on a few, relatively similar lines grown in single environments. Their results have often been inconsistent because of inadequate sampling of genotypes and environments. This study examined associations between economic characters in lentil over a wide range of genetic material and environments in West Asia. The first part of the study concerned correlations within large samples from the world lentil collection grown in two seasons, and the second part covered a smaller sample of genetic material from the collection sown over a wider range of conditions.The results showed similar phenotypic correlations over two seasons, contrasting in rainfall, in the world lentil collection. Similar genetic and phenotypic correlations were also shown by the smaller sample of germplasm over 10 environments. These results indicated low importance of covariance due to environmental and genotype-environment interaction effects. Seed yield was positively correlated with straw yield, indicating selection for either character will increase the other trait. The correlation between seed protein content and seed yield was small and negative, while the correlation of protein with straw yield was positive in sign. This suggests that the current ICARDA goals of selection for high seed and straw yield will not have a major correlated effect on seed protein content. There was a strong positive correlation between seed size and cooking time (r = 0.96), therefore seed size can be used to predict cooking time.

Intense Breeding within Lentil Landraces for High-Yielding Pure Lines Sustained the Seed Quality Characteristics

“…Plant breeders are interested mainly in traits having high heritability since they result in greater advance under selection. The values reported for seed weight of lentil were 62.8 % [43], 87.0% [44], 91.0% [45], 98.0% [21,46], and 99.0% [47]. High broad-sense heritability was also found for protein content with a value of 84.0% [47] and cooking quality with 82.0% [21] and 98.0% [47].…”

“…The values reported for seed weight of lentil were 62.8 % [43], 87.0% [44], 91.0% [45], 98.0% [21,46], and 99.0% [47]. High broad-sense heritability was also found for protein content with a value of 84.0% [47] and cooking quality with 82.0% [21] and 98.0% [47]. Finally, moderate to high broad-sense heritability was found for lentil grain yield as reported by several researchers, ranging from 41.0% [45] to 48.0% [44], 59.7% [43], 83.9% [46], and 96.0% [47].…”

Response to conventional and organic environment of thirty-six lentil (Lens culinaris Medik.) varieties

“…This is what has been observed in this study (Table 2). In addition, Singh (1977) and Hamdi et al (1991) working also with lentil reported that grain yield per plant was positively correlated with harvest index. Furthermore, other researchers have suggested that harvest index could be a useful selection criterion for higher yields (Kumar et al 2002;Solanki 2006;Yadav et al 2005).…”

Lentil

“…The usual protein content in dry lentil is around 26 %, although a germplasm range from 20.4 to 29.8 % has been reported (Sharma 2011 ). Studies to analyze the inheritance of seed protein concentration in lentil (Hamdi et al 1991 ;Chauhan and Singh 1995 ;Tyagi and Sharma 1995 ) have revealed the quantitative nature of this trait and a nonsignificant correlation with grain yield and seed size (Hamdi et al 1991 ;Tyagi and Sharma 1995 ). According to Sharma ( 2011 ), in most crops, especially cereals, protein content is invariably negatively correlated to seed size; however, lentil is possibly an exception and protein content has been claimed to be positively (although mildly) correlated to seed size.…”