Lentil ( Lens culinaris Medik subsp. Culinaris ) is an important cool season food legume grown over a large area in the Indian subcontinent, west Asia, some parts of Africa and southern Europe. Keeping in view its great demand for nutritious seeds, efforts are underway in different research institutes for development of improved plant types with high yielding ability, disease and insect pest resistance, and seed weight. Improvement of grain quality and nutrition are also among the import breeding objectives. While the cultivated germplasm is being utilized for addressing these objectives, even greater genetic variability has been observed in exotic germplasm and wild accessions. A better understanding of the pre-and postfertilization barriers and use of in vitro techniques and hormonal manipulations has improved the possibilities of obtaining viable and fertile interspecifi c hybrids using these wild genetic resources. Consequently, efforts have been made to transfer alien genes from wild species, viz., L. culinaris ssp. orientalis and L. ervoides to cultivated species. Despite these developments, strategies are still need to be developed to employ distant hybridization and alien gene introgression as a routine practice in genetic improvement of lentil. Further, a lot still requires to be done at molecular levels and gene transfer across genome boundaries through genetic transformation in lentil.
‘Katarni Rice’ is a fine quality scented rice landrace of Bihar, India and has tremendous export potential and commercial value. This is a preferred rice in the state due to its flavour, palatability and popcorn like essence before and after cooking. But its area has been shrunken drastically in recent years due to its low yielding (25–30 Q/ha) ability caused due tall and week stature and lodging tendency at maturity. To overcome this problem, marker assisted introgression of semi-dwarfing (sd1) gene from semi-dwarf and high yielding rice varieties Rajendra Sweta and BPT5204 was attempted. Parental polymorphism was obtained through 109 SSR markers. The gene specific markers for fragrance and semi-dwarfing genes were used in the segregants to track their transfer. Recombinant selection was done for the donor genome segments flanking to the target gene i.e., sd1 followed by background selection through genome wide polymorphic SSR markers. More than 90% recurrent parent genome recovery was observed and the selected plants showed a reduction of plant height and flowering time in comparison to Katarni in the successive backcross generation along with the retention of aroma. The identified lines can be evaluated further in multilocation trials to release it as a sustainable high yielding aromatic genotype.
The present investigation consisted of eight parents of linseed which were crossed as per diallel analysis [1] (Model 1 and Method 2) in Rabi 2010-11 to generate 28 crosses (excluding reciprocals). These 28 crosses were evaluated along with eight parents and three checks viz: T-397, Neelum and Allahabad Local in RBD having three replications during 2011-12 at the Field Experimentation Centre of Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad. The data were recorded on ten characters to study the combining ability. The significant mean sum of squares for all the ten characters indicated the presence of a substantial amount of variability. Per se performance for seed yield and its components depicted that cross M-42 (169) × POLF-19 (1765) was found to be best. Analysis of variance for combining ability showed significant differences for all the characters. The parents FRW-6 (973) and POLF-19 (1765) were good general combiner for seedyield and most of the traits. Highest positive SCA effect for seed yield per plant was depicted by the cross PbD2-42 (2789) × GS-129 (1018).
Gastrointestinal parasitic infected ewes and does were kept almost parasite free for about 3 months using Albendazole alone or supplemented with mineral mixture. The Hb (g/dl) level ranged from 8.83±0.08 to 8.96±0.03 in ewes and does was 8.78±0.02 to 8.95±0.24 before treatment. The level of Hb increased significantly (P less than 0.01) in both the treatment groups after treatment on day 20.The Serum level of Ca, P, Cu and Zn in ewes and does increased significantly after treatment on day 20 in both the treatment groups as comparison to control group. Although they did not vary significantly among themselves except the level of Cu which was significantly (P less than 0.01) higher in group II than the group I in ewes and does. The level of Zn was higher in group I than group II in does. The minimum interval from treatment to onset of estrus were recorded in group II , 41 days in ewes and 43 days in does which was followed by group I 44 days in ewes and 46 days in does and control group 55 days in ewes and 52 days in does. The average required number of services per conception in does were 1.33, 1.00 and 2.00 for I, II and control groups, respectively. The corresponding values in ewes were 1.67, 1.17 and 2.17, respectively. The pregnancy rates in the three groups were 66.66, 83.33 and 33.33%, respectively in case of does. The corresponding values in ewes were 50.00, 66.66 and 33.36%, respectively.
Katarni is a non-basmati traditional aromatic rice (Oryza sativa L.) cultivar of Bhagalpur district of Bihar. This rice is weak strawed, traditionally tall type, late maturing and easily prone to lodging. Due to photosensitive nature, it matures very late only at the end of November and provide a narrow window for the sowing of wheat in farmers’ filed. An experiment was conducted at Bihar Agricultural University, Sabour, Bihar during 2018 and 2019 to develop a semi-dwarf and early maturing lines derived from crossing of Katarni with 3 semi-dwarf high yielding cultivars and were advanced to F5 generation. In this study, 54 derived lines of Katarni in F6 generation were studied on the basis of 14 morphological traits and yield stability was analysed in 4 environments. The environments were created by different sowing dates across two years (2018 and 2019) in a single location at Bihar Agricultural University, Sabour. Significant variability was found among the genotypes and four principal components (PC) identified, out of which two contributed 98.9% of total variation. Six advanced breeding entries were found to be significantly superior over parental checks for grain yield. Five Katarni derived were identified as highly stable genotypes on the basis of GGE and AMMI stability analysis. All four environments were constituted in two mega environments in which first one shared the best set of Katarni-derived lines. The promising advanced breeding lines with higher yield and stable performance can further be evaluated under multi-location testing for varietal release.
Twenty farmers selected from each village for 6 villages of the district and skill based training on various aspects of backyard poultry farming. Participants enriched with sound knowledge were distributed with 25 Vanaraja & Grampriya chicks per person. The records of mean body weight of Grampriya and Vanaraja at different week interval. The body weight of crosses differ significantly (p < 0.05) after 4th week of age from their parents. The body weights of crosses were significantly (p < 0.05) higher than Hazra (Desi) birds and nearly similar to Vanaraja birds at different period of age attaining the sexual maturity in different groups of poultry birds. Vanaraja matures at the age of 141.62 days, Hazra (Desi) bird at 186.47 days and Grampriya at 158.32 days. The pullet egg weight of Vanaraja, Hazra (Desi) and Grampriya were 38.75, 30.82 and 34.94 g, egg weight at 40 weeks of age were 55.87, 42.89 and 51.26 g and increase in egg weight were 17.12, 12.07 and 15.42 g respectively. The hatchability percentages were 87.56%, 89.36% and 85.72% on fertile egg set and 68.23%, 68.92% and 64.74% on total egg set basis respectively in Vanaraja, Grampriya and local desi birds.
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