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Scientific Transactions in Environment and Technovation

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Scientific Transactions in Environment and Technovation, | 10.56343/STET.116.013.002.001
Year : 2019 | Volume: 13 | Issue: 2 | Pages : 41-44

Evaluation of sub-lethal and lethal concentrations of endosulfan to the fresh water fish Channa punctatus and its effects on respiratory system

Abstract :

The present experiment was conducted to evaluate the possibility of sand: soil inoculum of Arbuscular Mycorrhizal fungus with different carrier materials and to determine their influence on plant growth and nutrition of Onion. Sand:soil mixture containing azygospores and infected root segments (chopped) of Allium cepa L. infected with Gigaspora margarita grown for four months served as the Mycorrhizal inoculum. The different carrier based alginate entrapped AM inocula were prepared. The various carrier materials used in the study were perlite, soilrite, talc and vermiculite. Wet and dry beads were examined for the number of propagules of AM fungi they harbour. Perlite based alginate entrapped AM inoculum contained higher number of propagules. A pot experiment was conducted to know the infectivity of alginate entrapped inocula and their effect on growth and P-nutrition of onion. The biomass and P-content of onion inoculated with different carrier based alginate entrapped AM inoculum was equal to plants inoculated with sand: soil inoculums and significantly higher than plants grown in un-inoculated soil. This study revealed that the alginate beads are non- toxic in nature, biodegradable by soil microorganisms and cause no ecological pollution. Further, the alginate beads could be used for the introduction of AM fungi along with other beneficial soil microorganisms which promote plant growth.

Keywords:

Allium cepa L., Gigaspora margarita, Alginate beads.

Citation: *,

( 2019), Evaluation of sub-lethal and lethal concentrations of endosulfan to the fresh water fish Channa punctatus and its effects on respiratory system. Scientific Transactions in Environment and Technovation, 13(2): 41-44

Mr.Veerapathiran K

Correspondence: V. Vanitha


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