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Research Detail

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K. M. Muzibul Alom
Department of Genetics and Plant Breeding,Patuakhali Science and Technology University, Patuakhali

A. K. Chowdhury
Department of Genetics and Plant Breeding,Patuakhali Science and Technology University, Patuakhali

An experiment was conducted to study on the performance of 76 lentil genotypes that are suitable to cultivate under the southern belt of Bangladesh (AEZ–13). The experiment was laid out in RCBD with three replications. Correlation co–efficient was done to identifying the best relationship among the characters and path coefficient was also used to determine the direct and indirect relationships between yield and certain characters in 76 lentil genotypes. The data were analyzed statistically and means were adjudged by DMRT at 5% level of probability. Results revealed that genotypes had a significant control in all the studied characters at 1% level. Among the genotype, BD–3818 requiring more time for plant maturity (102.50 days) while it was also recorded the maximum pods and seeds (154.90 plant–1 and 2.0 pod-1, respectively) as well as higher grain yield (173.70 g line–1 plot–1). So the genotype BD-3818 would be most suitable productive genotype and may be useful in improving seed yield of lentil under the southern belt of Bangladesh (AEZ-13). Correlation co–efficient and path analysis also revealed that highly significant positive correlations were detected between first and 50% flowering (r= 0.925**) and also between grain yield and biological yield (r = 0.821**) while path analysis demonstrated that grain yield had the highest positive direct effects (0.8373) and the higher negative direct effect was -0.1904 in respect of days to 50% flowering with an average residual effect of 0.2839. Above result indicated that 50% flowering is the main yield contributing traits and it suggested that the delay flowering significantly increased the grain yield.

  Grain yield, Lentil Genotypes, Plant maturity
  Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Rahmatpur, Barisal
  00-11-2012
  00-04-2013
  Variety and Species
  Lentil

1. To identify the suitable lentil genotypes for maximizing the yield under southern belt of Bangladesh and to select the most valuable trait for maximizing the yield via correlation co–efficient and path analysis.

A field experiment was conducted at Regional Agricultural Research Station (RARS), Bangladesh Agricultural Research Institute (BARI), Rahmatpur, Barisal during the period from November 2012 to April 2013 under the southern belt of Bangladesh (AEZ–13). Seventy six lentil genotypes namely BD– 3804, BD–3806, BD–3807, BD–3808, BD–3809, BD–3810, BD–3811, BD–3812, BD–3815, BD–3817, BD–3818, BD–3819, BD–3820, BD–3821, BD–3822, BD–3823, BD–3824, BD–3825, BD–3826, BD–3827, BD–3828, BD–3829, BD–3830, BD–3831, BD–3832, BD–3833, BD–3834, BD–3835, BD–3836, BD–3837, BD–3838, BD–3839, BD–3840, BD–3841, BD–3842, BD–3843, BD–3844, BD–3845, BD–3846, BD–3848, BD–3849, BD–3850, BD–3851, BD–3852, BD–3853, BD–3854, BD–3855, BD–3856, BD–3857, BD–3858, BD–3859, BD–3860, BD–3861, BD–3863, BD–3864, BD–3866, BD–3867, BD–3868, BD–3870, BD–3871, BD–3872, BD–3873, BD–3874, BD–3875, BD–3876, BD–3877, BD–3878, BD–3879, BD–3880, BD–3881, BD–3882, BD–3883, BARI masur–1, BARI masur–4, BARI masur–6, BARI masur–7 were used for the present study which was collected from Pulse Research Division (PRD), BARI, Joydebpur, Gazipur–1701. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The size of each unit plot was 4.0 m × 30 cm thus the 1.2 m2 plot where line to line and seed to seed distances were 30 cm and 10 cm, respectively, in each plot. The different fertilizers such as cowdung (1.2 kg plot–1 or 10 tons ha–1), TSP (0.01 kg plot–1 or 85 kg ha–1), MP (0.004 kg plot–1 or 35 kg ha–1), Urea (0.054 kg plot–1 or 45 kg ha–1), Sulphur (0.0072 kg plot–1 or 60 kg ha–1), Boron (0.00018 kg plot–1 or 1.5 kg ha–1) and Zinc (0.00036 kg plot–1 or 3 kg ha–1) were applied during final plot preparation. The applied fertilizers were mixed properly with the soil in the plot using a spade. The seed were sown in the morning on 19 Nov., 2012. Various intercultural operations such as thinning out, gap filling and irrigation were also done during the study. Harvesting of the lentil was done after 110 days of sowing when 80% pod turned yellowish or the foliage turned pale yellow. The morphological, growth and yield attributes of lentil data were done at harvest. Data were recorded from the randomly selected 5 plants in each plot. Yield data were also collected at harvest. The harvested plants tagged as per plot and kept it on cleaned floor. The separated plants of each plot are threshing by hand and allowed them for drying well under bright sunlight. Finally, grain weights were taken on individual plot as per genotypes at moisture content of 12% and converted into g plant–1 and t ha–1. The obtained data were statistically analyzed in MSTAT–C computer program. The mean values were adjusted by Duncan’s Multiple Range Test (DMRT) at 5% level. Pearson’s correlation coefficients were calculated to determine the relationships between yield and yield components. Path coefficient was used to partition the correlation coefficients and to determine the direct and indirect effects.

  J. Environ. Sci. & Natural Resources, 7(1): 139–144, 2014; ISSN 1999-7361
  
Funding Source:
  

It could be summarized that the different genotypes evaluate the morphological, physiological and yield characters changes in lentil under southern belt of Bangladesh whereas the genotype BD–3818 showed understanding superiority on the maximum characters of the present study the genotype BD–3818 hd higher capacity to obtain the greater performance on the production of pods plant–1, seeds pod–1, 100–grain weight which might be make sure the greater yield of lentil. So, the genotype BD–3818 would be suitable lentil genotype for maximizing the yield under southern belt of Bangladesh.

  Journal
  


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