Author(s):

Payal Chakraborty and Bandana Bose

Abstract: Plant requires both macro and micronutrients for regulating their metabolic process throughout different phases of growth and development. Magnesium and Boron as a part of macro and micronutrient respectively perform specific function inside plant body. Here, to find out the effect of these two nutrients as seed priming agent, an experiment was conducted. In the present piece of experiment wheat seeds of variety HUW -468 were soaked for 12 hours in solutions of Mg(NO₃)₂ (macro nitropriming, C₁), H₃BO₃ (micro nutripriming, C₂), combination of Mg(NO₃)₂ + H₃BO₃(combined nutripriming C₃), distilled water (hydropriming, C₄) for priming purpose. Thereafter all the four sets are dehydrated under forced air and used for experimentation. Various parameters like germination percentage, germination parameters includes: FGP, MGT, GI, GRI, CVG, MGR, plumule, radicle and seedling lengths, fresh and dry weights of radicle & plumule, alpha amylase activity, soluble sugar contents and seedling vigour (index I and II) were determined at 3, 5, 7 and 9th days of seed germination and seedling growth and were compared with non- primed control sets (C₀). Result concluded that magnesium nitrate primed seeds (C₁) showed better result for all the parameters mentioned except alpha amylase activity & soluble sugar content, later two parameters were best in boric acid (C₂) primed one. However, seeds primed with combination of magnesium nitrate and boric acid (C₃) showed best result in radicle length and fresh & dry weights of it. In all the observed parameters it was noted that macro and micro primed sets performed better alone or in combination than hydro primed and non-primed control sets.

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