~ 6 ~ The Pharma Innovation Journal 2023; 12(1): 06-11 ISSN (E): 2277-7695 ISSN (P): 2349-8242 NAAS Rating: 5.23 TPI 2023; 12(1): 06-11 © 2023 TPI www.thepharmajournal.com Received: 05-10-2022 Accepted: 13-11-2022 Sampathi Sowjanya Research Scholar, Department of Seed Science and Technology, UAS, Bangalore, Karnataka, India S Rajendra Prasad Former Vice-Chancellor, UAS, Bangalore, Karnataka, India Shivanna B Associate Professor, Department of Entomology, UAS, Bangalore, Karnataka, India Parashivamurthy Professor and University Head, Department of Seed Science & Technology, UAS, Bangalore, Karnataka, India N Nethra Assistant Seed Research Officer, NSP, UAS, Bangalore, Karnataka, India RL Ravikumar Professor, Department of Plant Biotechnology, UAS, Bangalore, Karnataka, India Corresponding Author: Sampathi Sowjanya Research Scholar, Department of Seed Science and Technology, UAS, Bangalore, Karnataka, India Biogenic nano seed treatment studies in pigeon pea under pot culture Sampathi Sowjanya, S Rajendra Prasad, Shivanna B, Parashivamurthy, N Nethra, RL Ravikumar Abstract An experiment was conducted to know the effect of biogenic nanoparticle seed treatment in pigeon pea under pot culture during 2021-22 at NSP, GKVK, Bangalore. Seeds were sown in pots after imposing with eight treatments in various concentrations including control viz., green zinc oxide (1000 ppm & 1250 ppm), green silicon dioxide (500 ppm & 750 ppm) also chemical zinc oxide, chemical silicon dioxide and Spinosad (2 ppm). Among the different nanoparticles studied, green zinc oxide @ 1250 ppm recorded maximum plant height (153.48 cm), number of nodules per plant (99.75), pod length (7.92 cm), number of seeds per pod (5.15), number of pods per plant (115.09), seed yield per plant (53.73 g), and resultant seed obtained from green zinc oxide @ 1250 ppm shown highest 100 seed weight (14.71g), seed germination (94.00%), mean seedling length (43.02 cm), seedling dry weight (51.02 mg/seedling), seedling vigor index-I (4043), seedling vigor index-II (4795), total dehydrogenase activity (2.013 A480nm) and lowest electrical conductivity (20.44 μS/cm/g). These findings suggest that seed treatment with green zinc oxide @ 1250 ppm is better for obtaining good seed yield and quality parameters in pigeon pea. Keywords: Nano seed treatment, pigeon pea, pot culture Introduction Pulses truly are nutritious seeds for a sustainable future and can make an important contribution to the achievement of many of the Sustainable Development Goals of 2030. Cajanus cajan is a perennial member of the family Fabaceae, commonly known as ‘Pigeon pea’ or red gram. Pigeon pea is an important pulse crop in India, which is the major source of dietary protein for most of the vegetarian population and it is backbone of nutritional security of our country. The biological route of NP synthesis is most preferred now-a days, as it is eco-friendly, non- toxic, biocompatible and economical too. Biosynthesis of plant based support materials has gained much importance as compared to conventional adsorbents due to their plentiful existence, low cost, nontoxic nature, high efficiency as well as environmental friendly in nature, which are considered as green nanoparticles. Nanotechnology is one of the most effective and novel area of research in agriculture. Potential uses and benefits of nanotechnology are enormous in the field of agriculture. Green Nanotechnology it is defined as use of biological routes such as those involving microorganisms and plants for the synthesis of nanoparticles (Balogun et al., 2020) [2] . In agriculture, rapid and uniform seed germination and seedling emergence are important determinants of successful stand establishment. In recent years, several green NPs (Ag, Au, CuO, MgO, Fe, TiO2, ZnO) have been applied as seed pre-treatment agents can internalize seed coat, and support water uptake inside seeds, could possibly interact with α-amylase enzyme or act as Nano catalyst; thereby enhancing seed starch degradation for seed germination and seedling growth, also mitigating the detrimental effects of seed ageing and in helps elevated levels of antioxidant enzymes (Khan et al., 2020) [6] . The effect of nanoparticles has also been documented on several biochemical parameters related to plant growth and development. NPs are capable of influencing plant growth and development by altering some of the physiological processes in plants. Most studies indicate that NPs can cause toxic effects above a certain concentration, the current phytotoxicity profile of nanoparticles is in preliminary stage and ill effects of the unique characteristics of are not well understood, hence more studies on toxicity are required for commercial application (Duhan et a., 2017) [3] . Hence, the current research was conducted to know the effect of nano seed treatment in pigeon pea under pot culture.