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 |
Investigation was conducted at the laboratory at Tamil Nadu Agricultural University (TNAU), Coimbatore to enhance the germination capacity of Chloris barbata under in-vitro conditions with water and Potassium nitrate (KNO3).The species performed poor for germination rate when placed in the petri plate at room temperature. To attain the germination rate and the uniformity of the germination an experiment was performed with six treatments viz. T1 - Control (without KNO3 treatment and soaking), T2 - Soaking of seeds in water for 6 hrs, T3 - Soaking of seeds in water for 12 hrs, T4- Seed treatment in 2% KNO3 solution, T5 - Seed treatment in 2% KNO3 solution with 6 hrs soaking and T6 - Seed treatment in 2% KNO3 solution with 12 hrs soaking, all replicated four times. Germination behaviours of weed seeds were observed in all the treatments. The results showed that the germination percentage was significantly influenced by the seed treatment with KNO3 and seed soaking. Seeds treated with 2% KNO3 solution with 12 hrs soaking (T6) recorded significantly higher seed germination (63%) compared to other treatments. Mean germination time of C. barbata reduced significantly when it was treated with 2% KNO3 solution with soaking (6 &12 hrs; T5& T6, respectively). The maximum speed of germination, coefficient of velocity of germination, mean daily germination, peak value and germination value was recorded when the C. barbata seeds were treated in 2% KNO3 solution with 12 hrs soaking.
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