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 |
An experiment was conducted to evaluate the effect of different plant growth regulators on germination parameters of Diospyros melanoxylon L. (tendu) seeds under laboratory conditions. Seeds were soaked for 24 hours in nine treatments comprising distilled water (control), GA₃ (500 and 1000 ppm), IBA (500 and 1000 ppm), IAA (500 and 1000 ppm) and NAA (500 and 1000 ppm). Germination percentage, germination speed, germination value and germination energy were recorded at 2, 6 and 12 months after treatment during two consecutive years and the data were pooled. Significant differences were observed among the treatments for all parameters. GA₃ at 1000 ppm consistently recorded the highest germination percentage (94.25, 90.90 and 85.30% at 2, 6 and 12 months, respectively), followed by GA₃ at 500 ppm. NAA at 1000 ppm ranked next, while distilled water (control) produced the lowest values. Similar superiority of GA₃ 1000 ppm was observed for germination speed, value and energy. The results indicate that pre-sowing soaking of D. melanoxylon seeds in GA₃ at 1000 ppm is highly effective in improving germination attributes and can be recommended for nursery production of this economically important species.
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