Abstract: The aim of the present study was to investigate the effect of culture filtrate of cyanobacterium (Lyngbya.sp) with coir pith on seed germination of Vigna radiata L. in ASN III media. The impact of seed germination was analysed at different concs.(6.25, 12.5, 25, 50, 75 & 100%) and at various time intervals (24, 36 & 48 hrs) on 0th day and 30th day. Similarly the physicochemical parameters (TDS), biochemical parameters (chlorophyll a, protein, amino acid) and morphometric parameter (radicle length) were also performed on 0th and 30th day. The 30th day study revealed that the biochemical parameters (protein, amino acids and chlorophyll a) exhibited significant variations during germination in combined treatment when compared to control. The chlorophyll a content was high at 25% conc. while the protein levels were reduced and amino acid levels increased in combined treatment when compared to control. The TDS level was decreased with cyanobacterial treatment at 6.25% conc. when compared to control. The germination percentage was maximum in combined treatment at 36 hrs. and 48 hrs. in lower conc. when compared to other treatments while the radicle length was highly enhanced in combined treatment with cyanobacterium and coir pith when compared to other treatments. Thus, the outcome of this study results showed that the combination of cyanobacterium and coir pith in culture filtrate reduced the TDS content by converting the inorganic ions present in the filtrate into nutrients for growth which in turn promoted better seed germination.
Keywords: Lyngbya sp., Coir pith, ASN III media, seed germination, Vigna radiata L..
Title: The effect of culture filtrate of cyanobacterium (Lyngbya.sp) with coir pith on seed germination of Vigna radiata L.
Author: Tharani.G, Sowmya.R, Malliga.P
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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