National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Impact of fly ash (FA) on germination and initial seedling growth performance of Acacia auriculiformis was studied. Growing media was prepared by mixing FA to forest soil (S) at five concentrations 20%, 40%, 60%, 80% and 100% (w/w). The experimental design was CRD with six treatments and three replications. Freshly collected seeds were treated with warm water followed by cold water and sown at 1.0-2.0 cm depth in germination trays filled with media of different treatments. Significant (P<0.05) variation in germination (G) period, G. rate, G. capacity and G. Index with respect to FA concentration in media was observed (n=100). Maximum G. rate (84.49%) and G. index (25.94) were found in media having 20% FA (T1) after 30 days of sowing. After 90 days of transplanting in poly pots containing the mentioned substrates, significant difference (P>0.05) in seedling survival rate, plant height, diameter growth, leaf number, nodules per plant and seedling quality index were observed. The survival rate (83.24%), plant height (68.87 cm), collar diameter (0.83 cm), root length (39.00cm), nodule number per plant (24.16) and seedling quality index (0.88) were at maximum in growing media having 40% FA (T2). It is concluded form the present investigation that FA can be admixed @ 20% (w/w) in forest nurseries for improving germination and @40% (w/w) for promoting seedling growth and quality improvement of Acacia auriculiformis.
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