INDUCED VARIABILITY BY GAMMA IRRADIATION IN ISABGOL (PLANTAGO OVATA FORSK)
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2018, Vol 8, Issue 4
Abstract
Plantago ovate is a medicinal herb, requires improvement in seed yield to meet global demand for its seed husk. Mutation breeding has been attempted on account of the narrow genetic base of the crop. Seeds of isabgol variety RI-89 were treated with 9 doses of gamma rays(15 kr – 135 kr). Variability for seed yield and yield related characters were estimated in the M2 generation. The treatment 30 kr and 60 kr increased the seed yield along with a number of spikes per plant and biological yield per plant. The maximum swelling factor was recorded in 135 kr. Disease infestation decreased in all the families and phenolic compound was increased. The CV increased in all the characters indicating the induction of variability by gamma rays. Mean as well as variance were shifted in both positive and negative direction.
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