Model Calculations of the Nucleon Removal by 80-164 MeV Protons from Medium-Mass Nuclei

This work was supported by National Science Foundation Grant PHY 76-84033 and Indiana Universit

Evaluation of management of bacterial stalk rot of maize (Dickeya zeae) using some chemicals and bio-agents

A virulent strain (M-13) of Dickeya zeae causing bacterial stalk rot of maize, isolated from Hoshiarpur district of Punjab was tested against different antimicrobial agents. Five antibacterial chemicals viz., stable bleaching powder, streptocycline, cristocycline, blitox, kocide and one bioagent (Pseudomonas fluorescens) were evaluated against D. zeae under in vitro and in vivo condition. The chemicals were tested with different concentrations i.e. 50, 100, 200, 500, and 1000 and >1000 ppm and bioagent supernatant used as such without any dilutions. All the test chemicals and bioagent (P. fluorescens strains) reduced the log cfu/ml of D. zeae. Amongst chemicals, stable bleaching powder with 100 ppm concentration showed most effective antibacterial activity which reduced the population of D. zeae with 6.35 log cfu/ml and amongst P. fluorescence strains, MPF-5 strain showed effective result with 8.07 log cfu/ml. In field condition bleaching powder also showed good result to reduce the disease severity with increased the crop yield when used as both methods (drenching and dusting). However, post inoculation drenching with 100ppm concentration showed minimum mean of disease severity (7.13%) with high yield (7.4 kg) in all three maize cultivars (Dekalb Double, Punjab Sweet Corn-1 and PMH-1). The increase yield per cent as compared to control was 52.4% in Dekalb Double, 64% in Punjab Sweet Corn-1 and 57.9 % in PMH-1 maize cultivars

Elastic Scattering of 200 MeV Polarized Protons from 9-Be and 16-O

This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit

Hybrid-Model Calculations of the Nucleon Removal by 80-164 MeV Protons from Medium-Mass Nuclei

This work was supported by National Science Foundation Grant PHY 75-00289 and Indiana Universit

Evidence for a Central Depression in the Real Part of the Proton Optical Potential

This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit

Recoil Ranges of Nuclei Produced in Proton-Induced Reactions

This work was supported by National Science Foundation Grant PHY 76-84033 and Indiana Universit

Investigation of the Mechanisms of 6-Li-Induced Reactions Far Above the Coulomb Barrier

This work was supported by National Science Foundation Grants PHY 76-84033A01, PHY 78-22774, and Indiana Universit

Charged Particles from the Bombardment of Complex Nuclei with Medium Energy Protons

Supported by the National Science Foundation and Indiana Universit

Linear Momentum Transfer in the 3-He + 59-Co Reaction at Energies Between 110 and 170 MeV

This research was sponsored by the National Science Foundation Grant NSF PHY 87-1440

A review on bacterial stalk rot disease of maize caused by Dickeya zeae

Bacterial stalk rot of maize caused by Dickeya zeae previously known as E. chrysanthemi pv. zeaehave economic importance of reduced crop yield up to 98.8%. The disease is more prevalent in rainy season in India. The bacterium prefers high temperature and moisture for their growth result is plant toppled down within week. The pathogen has wide host range (maize, rice, tomato, chilli and brinjal etc.) which help to pathogen for long survival in soil. The bacterium characterized by biochemical and molecular tactics. In present, Pel gene and rDNA specific primers are frequently used for D. zeae characterization. The pathogen significantly controls under in vitro and in vivo condition via bleaching powder (drenching of 100 ppm) and antibiotics. The present studies generated data on pathogen nomenclature, etiology, epidemiology, host range, pathogen survival, biochemical, physiological and molecular characterization, germplasm evaluation and disease management