Aeschynomene Aspera L. Nitrogen Fixing Stem Nodulation Plant From ManipurJournal: International Journal of Scientific & Technology Research (Vol.2, No. 6)
Publication Date: 2013-06-25
Authors : Wangkheirakpam Radhapiyari Devi;
Page : 232-235
Keywords : Keywords Stem nodulation Aeschynomene aspera L. Manipur Nitrogen fixation micro Kjeldahl method;
Abstract Aeschynomene aspera L. is a wild annual legume growing in periodically waterlogged soils in Manipur India with profuse stem nodulation. Nodules are formed on the stem at the emergence of lateral root primordia called nodulation sites. They are distributed on vertical rows all along the stem and branches. Stem nodules are hemispherical in shaped dark green outside and contain a red-pigmented central zone. Stem nodules exhibit high nitrogen-fixing potential being detected by micro Kjeldahl method. The amount of Nitrogen N content found in term of kg N per kg dry weight was as 2.4x10-7 1x10-7 kg from the 45-50 days old stem nodules. Because of nitrogen fixing potential and its ability to grow in waterlogged conditions A. aspera L. could be introduced as organic manure into the rice cropping system in Manipur.
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