Stability in Phenology, Yield and Yield Attributes of Chickpea (Cicer arietinum L.) Genotypes under Various Temperature Conditions

An experiment was conducted with a set twenty-five genotypes of desi and Kabuli chickpeas to estimate stability parameters in Randomized Block Design with two replications under four environments (1st November 2018 (normal), 21st November 2018 (optimum), 15th December 2018 (late) and 15th January 2019 (extremely late) conditions during Rabi-2018-19. The analysis of variance showed a significant connection among genotypes, environment (linear), and genotype environment (linear) in all the traits in investigation. The JG-11, JAKI-9218, RVG-201 and RVSSG-54 these genotypes suitable for high seed yield with late and very-late sown conditions

Exploring the Chickpea Genotypes through Morphological Characterization for Improved Breeding

Morphological characterization is a valuable approach used to examine observable traits in crop plants, enabling the identification, classification, and understanding of genetic variations within diverse genotypes. This supports breeders in selecting desirable traits and improving breeding programs. Thus, the aim of this study is to investigate the morphological characterization of 40 chickpea genotypes, focusing on 20 morphological traits, following the DUS testing guidelines proposed by PPV & FRA, GOI, 2007. The experimental study was carried out utilizing the randomized complete block design (RCBD) at the Seed Breeding Farm, Department of Plant Breeding and Genetics, College of Agriculture, JNKVV, Jabalpur, M. P. Through the examination of these traits, distinct patterns were identified among the chickpea genotypes. Among the 20 traits analyzed, 5 traits exhibited a monomorphic pattern, 8 traits displayed a dimorphic pattern, 6 traits demonstrated a trimorphic pattern, while the remaining 1 trait revealed a polymorphic pattern. These results indicate a substantial degree of genetic variability within the studied chickpea genotypes, emphasizing the diverse nature of these traits that can be harnessed for targeted breeding efforts and highlighting the immense potential for the development of improved chickpea varieties

Comparative Analysis of the Effect of Different Insecticide Treatments on Nagpur Mandarin in Biomass Accumulation

The Comparative Analysis of the Effect of Different Insecticide Treatments in Nagpur Mandarin on Biomass Accumulation was conducted during the Ambia bahar of 2009-10. The experiment was carried out on an eight-year-old Nagpur mandarin orchard with a spacing of 6.0 m x 6.0 m at Futala farm, College of Agriculture, Nagpur. The study aimed to assess the impact of different insecticide treatments on Citrus psylla management. A trial comprising of eleven treatments was set in the Randomized Block Design (RBD), replicated thrice, with each treatment plot having four plants. Four branches were selected from each plant at random and tagged. The population of citrus psylla (both nymph and adult) was counted on the twigs of 5 cm fresh growth of the shoot from all the four sides of the plant during Ambia bahar of 2009-2010. The study found that imidacloprid 0.25 ml/l, acetamiprid 0.1 g/l, and quinalphos 1 ml/l + karanj oil (pongamia oil) 10 ml/l were the most effective treatments based on biomass accumulation (wet weight basis). Meanwhile, treatments with lower efficacy were Verticillium lecani 4 g/l + mineral oil 5 ml/l, azadirachtin 2 ml/l, mineral oil 5 ml/l, and Verticillium lecani 4 g/l. Furthermore, the application of imidacloprid 0.25 ml/l, acetamiprid 0.1 g/l, thiomethoxam 0.1 g/l, and quinalphos 1 ml/l + karanj oil (pongamia oil) 10 ml/l were found to be the most effective treatments based on biomass accumulation on a dry weight basis. The results indicated that treatments with imidacloprid, acetamiprid, thiomethoxam, and quinalphos with karanj oil were the most effective in promoting higher growth of new flush, bearing (buds, flowers and fruit), and biomass accumulation on both wet weight and dry weight basis. Among them, the treatment with imidacloprid at 0.25 ml/l was found to be the most effective

Physiological Traits Associated with Seed Yield in Chickpea (Cicer arietinum L.) Genotypes under Different Environmental Conditions

A field experiment was conducted during Rabi, 2019-20 at Sehore, Madhya Pradesh to investigate the association of yield and its related components of physiological traits in Chickpea under three sown environments. Seed yield per plant was showed significant positive association with LA & LAI at 60 days after sowing in E-I, CGR in E-III. This suggested that attributes might be utilized primarily for selection of high yielding genotypes, with yield contributing characters potentially playing a key role as selection parameters for isolating a high yield in eligible genotypes

Exploring the Relationship between Yield and Its Attributing Traits in the Induced (M2) and Recurrent Irradiated (RM2) Population of Finger Millet (Eleusine coracana L. Gaertn) Using Path Coefficient Analysis

Mutation breeding has evolved as an efficient tool for creating novel variability. Induced mutagenesis is the method of treating the base material only once, whereas recurrent mutagenesis involves subjecting the first generation (M1) to another dose of mutagen for creating extensive spectrum of genetic variations in the population. Path coefficient analysis in the induced and recurrent irradiated population measures the strength of relationship between yield attributing traits and grain yield, both directly and indirectly. The present investigation was undertaken during Kharif, 2019-20 at the K block, GKVK, University of Agricultural Sciences, Bangalore. The two genotypes of finger millet viz., GPU 28 and KMR 204 have undergone single and recurrent irradiation with different doses of gamma rays (300Gy, 400Gy) and EMS (0.1%) at Bhaba Atomic Research Centre, Mumbai. Observations were recorded for 9 quantitative traits viz., days to 50% flowering, plant height, productive tillers plant-1, ear head plant-1, fingers ear-1, finger length, panicle weight plant-1(g), test weight (g) and grain yield plant-1 (g). The studies on path analysis revealed that panicle weight and test weight established positive and direct effect towards grain yield in the induced population of finger millet. Similarly, in the recurrent irradiated population with gamma rays panicle weight, test weight, finger ear-1, 50% flowering, ear plant-1 and finger length showed direct positive effect for grain yield whereas in the recurrent irradiated population with EMS panicle weight followed by test weight, fingers ear-1, plant height, productive tillers plant-1, finger length and 50 % flowering exhibited direct positive effect for grain yield. Henceforth, direct selection based on grain yield and its attributing traits would benefit in developing high yielding variety in the crop improvement programme of finger millet

Assessment of Genetic Parameters for Yield and Its Associated Traits in Greengram [Vigna radiata (L.) Wilczek]

Greengram is India's most significant legume crop, and because there is relatively little genetic variety, increasing productivity demands increased attention in research for the development of superior cultivars. During Kharif 2020-21, an experiment was conducted to the evaluation of the genetic parameters for yield and their associated attributes for thirty-nine Mungbean genotypes. Using a Randomised Block Design (RBD), all genotypes were sown in three replications. The observations on various quantitative characters were recorded, and the genetic parameters, PCV, GCV, heritability(bs), and genetic advance, along with the analysis of variances, were estimated. According to ANOVA, almost all genotypes exhibited significant variances for all characters. The highest GCV and PCV was found to be pod length (cm), number of pods cluster-1, number of primary branches plant-1, biological yield plant-1 as well as seed yield plant-1. The heritability was recorded high for pod length (cm) followed by number of primary branches plant-1, number of pods cluster-1, days to pod initiation, number of seeds pod-1, days to 50% flowering, seed yield plant-1, biological yield plant-1, number of effective pods plant-1. The character’s days to flower initiation, total number of pods plant-1, harvest index and number of clusters plant-1 revealed medium genetic advance. High heritability(bs) coupled high genetic advance as percent of mean was observed for pod length (cm), number of branches plant-1, number of pods cluster-1, days to pod initiation, number of seeds pod-1, days to 50% flowering, seed yield plant-1, biological yield plant-1 and number of effective pods plant-1