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The relationship between number of branches and number of pods was positive and highly significant, but negative and significant for number of branches and seed weight. Number of pods was positively and significantly correlated with seed weight. Tyagi and Sharma (1985) estimated correlation among some economic traits in 19 promising Indian lentil varieties. They found that 1000-seed weight had a highly significant and negative assocation with seeds/pod. A significant negative association between time to flower and 100-seed weight (r = -0.68) indicates that the most of the Indian lentils are early flowering. Longer periods of flowering and maturity produced more dry matter. Seed yield was positively correlated with total dry matter. Harvest index was negatively correlated with earliness, but positively correlated with seed yield. Balyan and Singh-Shobir (1986) investigated the association among eight lentil characters and their direct and indirect contribution to seed yield. The results showed that seed yield/plant was positively and significantly correlated with plant height, number of pods/peduncle, and number of pods/plant and biological yield at phenotypic levels, suggesting the importance of these traits in selection for yield. The path coefficient analysis revealed that number of pods/plant and 100-seed weight exhibited high positive direct contribution to seed yield. However, time to maturity and plant height showed high positive direct contributions to seed yield at genotypic level. The direct contribution of biological yield was positive at phenotypic level, while it was negative at genotypic level. Thus, on the basis of characters association and direct and indirect contribution of characters to seed yield, it is concluded that plant height, number of pods/plant, 100-seed weight, time to maturity and number of pods/peduncle are the most important characters affecting improvement in lentils. Mia et al. (1986) reported that positive correlation between seed yield/plant and plant height, indicating that the taller plants may have more bud bearing nodes and hence, higher seed yield. But seed yield 37 had negative association with 100-seed weight, time to flowering and time to maturity. On the other hand 100-seed weight showed negative correlation with time to flowering, plant height and seed yield. It may be suggested that selection based on taller plant type with smaller seed size is effective for high seed yield. Eissa et al. (1987) studied the performance of nine lentil quantitative traits in two seasons in Egypt. They used 33 local accessions (sub sp. macrosperma) of Lens culinaris, 13 foreign (sub sp. microsperma) entries and the local commercial cultivars Giza 9 and Family 300. They found that days to first and mid flowering were negatively correlated with seed yield/plant, pods/plant and harvest index in the foreign entries. Seed yield was highly and positively correlated with pods/plant in both subspecies. This correlation was largely consistent a cross years. Path analysis revealed that pods/plant exerted the greatest direct effect on yield in both subspecies. Baidya et al. (1988) calculated the phenotypic and genotypic correlation coefficients for 6 quantitative traits in 96 lentil strains. They indicated that the advantages of upgrading lentil genotypes would be that expected through simultaneous selection for plant height, dry weight/plant and number of pods/plant and branches/plant have been recognized as major contributors to seed yield. Manara and Manara (1988) carried out a series of experiments for three consecutive years in Brazil to study the relationship among several lentil traits. They concluded that an increase in seed yield could be obtained by selecting late maturing plants with a high number of pods. Murari et al. (1988) concluded that in lentil number of branch, number of pods and seeds/plant, plant height (in 1983 only) and 1000- seed weights were positively correlated with seed yield/plant in both 1983 and 1984. While, seed yield and plant height was negatively correlated in 1984. The contribution of different yield components to 38 seed yield/plant accounted for 93 and 96% of the yield in 1983 and 1984, respectively. Rao and Yadav (1988) found positive correlation between seed yield and each of harvest index and biological yield. Concerning heritability estimates, parameters of genetic variability and association analysis, they concluded that selection criteria based on harvest index and seed yield would serve the purpose of improvement of seed yield in lentil. Ramgiry et al. (1989) reported that seed yield had strong positive correlation with seed yield/plant, number of branches/plant, number of pods/plant and harvest index. Harvest index showed strong positive correlation with seed yield/plant, number of branches/plant and number of pods/plant, but no association was noticed between harvest index and 100-seed weight. Number of branches/plant and number of pods/plant had also positive correlation with seed yield/plant. Number of pods/plant was negatively correlated with 100-seed weight. In conclusion, harvest index, seed yield/plant, number of branches/plant and number of pods/plant have been recognized as major contributors to seed yield. Rajput and Sarwar (1989) calculated correlation among various lentil characters in 22 diverse lentil genotypes. They revealed that seed yield was positively and significantly correlated with number of pods/plant and number of seeds/pod. Number of pods/plant appeared to be the most important component of yield. The other yield contributing traits, plant height, number of branches/plant and pod length showed positive, but non-significant effects on seed yield. 100- seed weight had negative association with plant height and number of pods/plant. Plant height had strong positive correlation with number of pods/plant. They concluded that selection on the basis of plant height is useful in improving seed yield. On the basis of variability parameters and association analysis of different characters with seed yield, it was suggested that selection criteria based on number of 41
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