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 |
The experiment was taken up at Horticultural Research station, Orissa University of Agriculture and Technology, Bhubaneswar, Orissa during Rabi season for the year 2013 & 2014. 500 seeds of variety Utkal Kumari (BT-10) were taken and subjected to single and combined mutagenic treatment as per the specification. Seedlings of the fifteen treatments were transplanted following Randomised Block Design (RBD) with three replications. Leaf area (dm2/plant), Total Dry matter and chlorophyll content were measured 30, 60 and 75 days of transplanting. NAR (net assimilation rate) and CGR (Crop growth rate) was also calculated at 30-40 days and 50-60 days. All the treatments showed increase in yield over control and buffer except in treatment SA 0.06% which indicates that the mutagens had positive effect on the plant for increasing yield. The increase in yield depends on leaf area or photosynthesizing tissues, total respiring tissues or total biomass, photosynthetic efficiency as reflected by chlorophyll content, Net assimilation rate (NAR) and crop growth rate (CGR). EMS at 0.6% concentration had shown maximum increase in yield, was due to maximum leaf area (55.19dm2/plant), maximum total dry matter (19.44g/plant) maximum crop growth rate (0.347g.g-1.wk-1). The chlorophyll content and NAR (Net assimilation rate) were also significantly high for this treatment.
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