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Not AvailableCluster analysis using Mahalnobis D2 was performed using 97 groundnut diverse genotypes for 14 yield contributing and water use efficiency related traits. The genotypes were grouped into twelve clusters based on D2 statistic. Cluster II was the largest with 54 genotypes followed by cluster I with 33 genotypes and remaining ten clusters had one genotype each. The inter cluster D2 values revealed maximum divergence between cluster VI and cluster III (1736), followed by cluster XII and cluster III (1622); cluster VI and cluster X11 (1389); cluster IX and cluster XI (1171) and cluster XI and cluster II (1041). It was observed that plant height was the largest contributor (65%) towards genetic divergence followed by days to maturity (10%) and secondary branches per plant (10%), SPAD Chlorophyll Meter Reading (SCMR; 4.3%) kernel length and hundred pod weight (1.2%) and Specific Leaf Area (SLA; 0.06%) contributed the least for divergence. Estimates of GCV and PCV were high for plant height, primary and secondary branches and pod yield per plant indicating higher genetic variation present in the genotypes studied. High heritability coupled with high genetic advance as per cent of mean was observed for days to fifty per cent flowering, secondary branches per plant, hundred pod and kernel weight, kernel length and, SCMR. SLA exhibited moderate estimates of heritability and genetic advance as per cent of meanNot Availabl

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Not AvailableGroundnut (Arachis hypogaea L.), is important oilseed legume crop of arid and semiarid tropics. The experiment was conducted at the experimental plots of ICAR-Directorate of Groundnut Research (ICAR-DGR), Junagadh during summer season 2017. A total of 97 germplasm collections consist of 33 NRCG collections, 54 released varieties and 10 advanced breeding lines developed from Plant Breeding section, ICAR-Directorate of Groundnut Rese arch, Junagadh.The analysis of variance revealed significant differences among the all the genotypes for all the traits except days to 50 per cent flowering and primary branches per plant indicating the existence of significant variability for for yield and water use efficiency related traits. High heritability coupled with moderate high genetic advance as per cent of mean for yield and its component traits indicates the involvement of additive gene action governing the traits and scope for selection. SLA associated negatively with SCMR and days to flowering associated significant negatively with pod yield per plant.Not Availabl

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Not AvailableForty eight germplasm collections were evaluated for pod yield and its attributes during summer 2018 and 2019. High heritability coupled with high GAM were observed for pod yield per plant, HPW, HKW and kernel length indicating that selection for these characters could be more effective due to additive gene action. Pod yield per plant correlated significantly and positively with SP, SMK, and kernel length to width ratio. Both DFI and DFF correlated significantly and negatively with pod yield per plant. SLA had low heritability and GAM. Genotypes NRCG 14507, NRCG CS 254, NRCG CS 313 and Girnar 1 showed early flowering initiation (35 DAS). The surrogate trait of water use efficiency (SLA) was lowest (15070%). Genotypes NRCG 10620 and TG 39 exhibited higher yields over two summer seasons.Not Availabl