Author(s):

J Ravivarman, Dr. KR Rajadurai, Dr. S Nakkeeran, Dr. M Senthilkumar and Dr. GJ Janavi

Abstract: An experiment was conducted at Tamil Nadu Agricultural University, Coimbatore to find out the effect of beneficial microorganisms on nursery plant production of crossandra (<em>Crossandra infundibuliformis </em>(L.) Nees) cv. Bangalore local. On analyzing total N, P, K and phytochemical content of the leaves in crossandra seedlings, it was observed that the total nitrogen (3.450 %) and total potassium (3.416 %) were observed highest in <em>Methylobacterium</em> sp. (PPFM) @ 2 % volume. <em>Methylobacterium</em> sp. (PPFM) @ 1 % volume (3.420 %) was on par with each other in total nitrogen content. Total phosphorous in leaf was observed highest (0.550 %) in <em>Bacillus amyloliquefaciens</em> @ 2 % volume. Total chlorophyll content was recorded highest in <em>Methylobacterium</em> sp. (PPFM) @ 2 % volume (8.836 mg g^-1). The highest quantity of leaf soluble protein (120.740 mg g^-1) and total sugar (26.500 mg g^-1) was recorded in <em>Bacillus amyloliquefaciens</em> @ 1 % volume. The highest quantity of total phenol (5.750 mg g^-1) and proline (9.08 mg g^-1) was recorded in <em>Bacillus amyloliquefaciens</em> @ 2 % volume. The results of the experiment indicates that <em>Methylobacterium</em> sp. followed by <em>Bacillus amyloliquefaciens</em> were suitable microbes for utilizing in the nursery plants production of crossandra.

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