Browsing by Subject "Jute"

Now showing 1 - 3 of 3

Open Access
Evaluation of jute rhizospheric bacteria for plant growth promotion and disease suppression
(University of North Bengal, 2017) Majumdar, Sukanta; Chakraborty, Usha,
Open Access
Jute and Sustainable Development- A Study of Its Socio- Economic and Environmental Prospects
(University of North Bengal, 2020-09) Chakraborty, Ruchita
Jute is a natural plant fibre that has been traditionally used as a packaging textile, but over the past decades, it has been rapidly replaced with synthetic substitutes. However, in the wake of the global consciousness regarding environmental crisis and sustainable development, the rejuvenation of the industry seems to answer a number of calls. On one hand, its usage in the packaging industry can reduce plastic wastes considerably. Again, in the backdrop of the environmental international instruments in recent years, jute can be a viable alternative to achieve the goals towards maintaining ecological balance. On the other hand, the industry being a source of income for more than 40 lakh families, its revival is expected to benefit the nation socio-economically as well. In this context this paper explores the usage of the fibre as an environmental friendly alternative to various widely used synthetic commodities. It also locates the different environmental standards set by the world community that can be achieved with its increased usage. Further, in the context of the two important recent instruments- the Sustainable Development Goals and the Paris Climate Pact, this paper examines the various dimensions that the golden fibre can effectively answer.
Open Access
Screening of free-living bacteria from the rhizosphere of Jute for their multiple plant growth promoting and antagonistic activity against phytopathogens
(University of North Bengal, 2015-03) Majumdar, Sukanta; Chakraborty, Usha
Present investigation was undertaken to screen the PGPR isolates from the rhizosphere of Jute for their plant growth promoting and antagonistic activities in the view of an alternative way to chemical fertilizer and hazardous fungicides. A total 76 isolates were isolated from different parts of northern West Bengal and screened for their antagonistic activity against Macrophomiona phaseolina. Most promising five isolates were selected for further study and screened for other plant growth promoting and lytic enzyme producing abilities. Out of these, two isolates were Gram positive and rest three Gram negative. All five isolates exhibited several plant growth promoting activities. All five isolates showed IAA and ammonia production whereas four out five showed phosphate solubilization activity. Three PGPR strains exhibited siderophore production and only one isolate showed cyanide production ability. Among the lytic enzymes, chitinase was produced by three isolates. Among them B-3 showed highest degree of chitinase production. Protease was also produced by four strains but amylase and B-1,4-glucanase activity showed by only one isolate, Act-6. Two isolates B-3 and Acti-6 showed considerable amount of antagonistic activity against three phytopathogens Macrophomina phaseolina, Fusarium oysporum, and F. semitectum suggesting that Acti-6 and B-3 showed several attributes to be the potent strains of PGPR and can be used as biofertilizer as well as biocontrol agents.