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The main purpose of the study was to determine the suitable selection method for genetic improvement in chickpea. The current investigation was conducted at the research area of the Arid Zone Research Institute, Bhakkar, Punjab, Pakistan. Twelve chickpea genotypes were sown in RCBD following three replicates. Data regarding primary & secondary per plant, days for maturity, plant height as well as potential yield were recorded. The measured data were analyzed to principal component analysis (PCA), correlation, and path coefficient analysis. Analysis of variants revealed good variation among the accessions for the data recorded traits. Principal coefficient analysis differentiates all the traits into six PCs. Two components expressed more than one Eigenvalue which collectively contributed 80.12% towards the genetic variation. High positive loadings were expressed by the secondary branches per plant and pods per plant in all components. Path analysis revealed that secondary branches/plants expressed the highest direct positive effect (0.872) grain yield followed by the pods per plant (0.623). Analysis of correlation coefficient also confirmed the highest significant contribution of secondary branches per plant (91.57%) followed by pods (78.12%) and each plant's primary branches (64%). It was proved from the current experiment that Plants with secondary branches as well as pods may be focused on while assessing meaningful selection criteria for genetic improvement in chickpea. [ABSTRACT FROM AUTHOR]

The main purpose of the study was to determine the suitable selection method for genetic improvement in chickpea. The current investigation was conducted at the research area of the Arid Zone Research Institute, Bhakkar, Punjab, Pakistan. Twelve chickpea genotypes were sown in RCBD following three replicates. Data regarding primary & secondary per plant, days for maturity, plant height as well as potential yield were recorded. The measured data were analyzed to principal component analysis (PCA), correlation, and path coefficient analysis. Analysis of variants revealed good variation among the accessions for the data recorded traits. Principal coefficient analysis differentiates all the traits into six PCs. Two components expressed more than one Eigenvalue which collectively contributed 80.12% towards the genetic variation. High positive loadings were expressed by the secondary branches per plant and pods per plant in all components. Path analysis revealed that secondary branches/plants expressed the highest direct positive effect (0.872) grain yield followed by the pods per plant (0.623). Analysis of correlation coefficient also confirmed the highest significant contribution of secondary branches per plant (91.57%) followed by pods (78.12%) and each plant's primary branches (64%). It was proved from the current experiment that Plants with secondary branches as well as pods may be focused on while assessing meaningful selection criteria for genetic improvement in chickpea. [ABSTRACT FROM AUTHOR]

A study was conducted at Arid Zone Research Institute, Bhakkar, Pakistan during 2007-10 to observe the impact of canopy management on bio-economic efficiency of chickpea on sandy loam soil. Treatmetns comprising plant growth regulators i.e. Nephthalene Acetic Acid (NAA) was kept in main plots while four available moisture depletion levels (ASMDL 50, ASMDL 65, ASMDL 80 and ASMDL 95) were kept in sub-plots, using split plot arrangements. Naphthalene acetic acid (4.5% as sodium salt) was applied @ 600 ml per hectare at 90, 110, 130, 150 and 165 days after sowing. The results showed that NAA applied at flower blooming stage (90 days after sowing) significantly increased number of pods per plant, seeds per pod, 100-seed weight and seed yield by 12.50, 6.98, 9.59 and 13.98 percent, respectively compared with control (NAA0). Treatment combination NAA1 x ASMDL80 gave maximum pods per plant (70.68), 100-seed weight (30.15 g) and grain yield (3219.1 kg/ha). Water productivity ranged from 8.23 (ASDML50 x NAA0) to 18.18 kg per ha per min (NAA x ASSML95). Maximum dry matter accumulation was recorded at 150 DAS in case of both NAA levels. The application of 600 ml per hectare NAA at flower initiation and maintenance of irrigation at 80 percent ASMDL (total amount of water applied was 252 mm with irrigation depth of 126 mm each) proved best for higher chickpea seed yield with 4.28 BCR. [ABSTRACT FROM AUTHOR]