Research

Scientific Transactions in Environment and Technovation Journal(STET), 11 Sep 2022 | 10.56343/STET.116.011.001.005
Year : 2017 | Volume: 11 | Issue: 1 | Pages : 33-35

Mass production of Alginate Entrapped Arbuscular Mycorrhizal Inoculum and their influence on growth and nutrition of Onion

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: *, ( 2017), Mass production of Alginate Entrapped Arbuscular Mycorrhizal Inoculum and their influence on growth and nutrition of Onion. Scientific Transactions in Environment and Technovation Journal(STET), 11(1): 33-35

Received: 07/15/2015; Accepted: 07/12/2017;
Published: 11/09/2022

Edited by:

Reviewed by:

*Correspondence: Hemalatha