Discovery Science Journal is an international, peer reviewed Magazine. Discovery Science Published from July 2012. Discovery Science publishes innovative and groundbreaking research and reviews. Discovery Science turns to be a platform for scientific discussion of all the aspects of science, nature, and technology. Discovery Science has been created to facilitate exchange of information about the latest and future scientific discoveries and stimulate the global research activities on earth. Discovery Science publishes primary and advanced research works in every discipline. Discovery Science Journal publishes following formats of research works as follows:
Among the exploited bivalve resources of India, clams are by far the most widely distributed and abundant. Good clam fishery is reported from the Ratnagiri coast of Maharashtra, India. It is represented mainly by shortneck clams, Paphia malabarica. Present study done from February 2013 to September 2014, analysed the morphological characters and the karyotypes of P. malabarica. The chromosome formula derived from the present investigations for this clam was 10m + 5sm + 4t (2n = 38). The karyotype displayed a high number of metacentric chromosomes. The percentage of euchromatin observed in both the long and short arms of the chromosomes of the P. malabarica was more compared to the heterochromatin, indicating active regions of replication and transcription.
Root-knot nematode, Meloidogyne incognita is one of the major limiting factors affecting plant growth and yield. Currently, synthetic pesticides are principle means used to control the nematodes but organic amendments and biocontrol agents may provide a safer alternatives. A study was conducted to evaluate the nematicidal potential of neem and Bacillus thuringiensis in controlling Meloidogyne incognita. 100% concentration of neem leaf extract, neem seed extract and 1.1×109 CFU/ml of Bt formulations (WCS, CFS, CPR and SCP@ 10ml/ 50 seeds) were used as seed dressing treatment to control Meloidogyne incognita infesting tomato plants. Significant increase in shoot length, root length and total plant length was observed in NLE treated tomato plants i.e. 142.0% (52.2 cm), 211.9% (23.09 cm) and 159.0% (75.2 cm) respectively as compared to the inoculated control. Carbofuradan 3-G was also effective caused maximum increase in shoot weight, total plant weight and yield weight by 28.7% (14.8 cm), 40.6% (19.5 cm) and 286.5% (11.12 cm) respectively as compared to the inoculated control. Maximum root weight was observed in WCS+NSE i.e. 115% (5.10 cm) as compared to the inoculated control. NLE treated tomato plants showed significant increase in shoot length, root length and total plant length as compared to the uninoculated control. When CPR+NSE used as seed dressing treatment caused significant reduction 6.9% in number of galls/root system as compared to the inoculated control. Carbofuradan 3-G and WCS+NLE caused 72.3% and 54% reduction in number of females/gall respectively as compared to the inoculated control.