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 |
Mutagenic effectiveness and efficiency of gamma rays, Ethyl methane sulfonate (EMS), Nitrosoguanidine (NG), Maleic hydrazide (MH) and their combined treatments were studied in greengram. The percentage of lethality, pollen sterility, frequency of chlorophyll mutations, mutagenic effectiveness, mutagenic efficiency and mutation rate of each mutagen and their combination treatments were estimated to determine the mutagenic effect of these mutagens and their combinations. The result indicated that the values of mutagenic effectiveness gradually decreased with increases in dose/concentration of mutagens. Among all mutagens, NG exhibited as the most effective mutagen. The lower dose of NG (0.005%) was recorded as the most effective and efficient among all mutagenic treatments. Among combined treatments, gamma rays with NG were found as more effective than other mutagenic combinations whereas gamma rays with EMS were found as the more efficient mutagenic combination. Among all mutagens, the maximum mutation rate based on lethality and pollen sterility observed in gamma rays treatments.
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