Author(s):

B Rajitha, V Rajarajeswari, P Sudhakar, NV Naidu, TNVKV Prasad and BV Bhaskara Reddy

Abstract: A laboratory study was taken up during 2017 at Crop Physiology laboratory, S.V. Agricultural College, Tirupati where blackgram seeds were treated with nano scale oxides of Zn, Mg and Fe at different concentrations along with bulk ZnSO₄, MgSO₄ and FeSO₄ (@ 0.2%) on seedling characters of blackgram. Significant differences were observed among treatments under each micronutrient. Blackgram seeds responded variably towards the treatments of both bulk FeSO₄, MgSO₄ and ZnSO₄ and nano scale Fe Oxide, Mg Oxide aand Zn Oxide particles. Among the treatments nano scale Zn Oxide @ 200ppm, nano scale Mg Oxide @ 100ppm and nano scale Fe Oxide @ 200ppm recorded higher seedling vigour index (SVI) compared to respective bulk treatments. The study reveals the promontory effect of nano particles depends on its concentration and nano scale Zn Oxide @ 200ppm, Mg Oxide @ 100ppm and Fe Oxide @ 200ppm found effective in enhancing seed germination and seedling growth of blackgram.

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