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Abstract
Black rice Oryza sativa is primarily grown in East and North East of India. This variety could not become popular due to low yield and being expensive. It is rich in three kinds of Anthocyanin contents which exhibit great impact on human health. Four different kinds of ZnO nanomaterial were prepared at variable temperature ranging from 250°C to 500°C. The Interaction of black rice grain with nanozinc material leads to the observation that seeds germinated early. Rooting development was higher. Better effects were observed while those interacted with nanomaterial prepared at 350°C. In the present study the aim was to enhance the yield and value addition. To best of our knowledge this is the first scientific attempt [see also patent filed Varma et al. 2019]. The mechanism involved needs further elaborate elucidation. We hope that the goal can also be achieved by interaction of seeds with mycosymbiont—Piriformospora indica (Serendipita indica) a potent cultivable mycorrhiza. The precise objective of this communication is to illustrate the interaction of black rice seed with several synthesized nano zinc material which varied in shape, size and diameter.
Highlights
Rice is the staple diet for a vast majority of Indians inhabiting the 15 agro-climatic regions and is a source of nutritional supplement to the poorest of the poor
China is responsible for 62% of global production of black rice and it has developed more than 54 modern black rice varieties with high yield characteristics and multiple resistances
The preliminary work justifies the impact of nano zinc on seed germination and root development
Summary
Rice is the staple diet for a vast majority of Indians inhabiting the 15 agro-climatic regions and is a source of nutritional supplement to the poorest of the poor. Black Rice was originally cultivated in Odisha (East India) but is presently extensively cultivated. Black rice includes several varieties with a long history of cultivation in Southeast Asian countries such as China, India and Thailand. There are more than 200 types of black rice varieties in the world. China is responsible for 62% of global production of black rice and it has developed more than 54 modern black rice varieties with high yield characteristics and multiple resistances. China cultivates the maximum varieties of black rice followed by Sri Lanka, Indonesia, India and Philippines etc. Thailand occupies the ninth position to black rice cultivation. Interest in black rice is indicated by the number of accessions held in germplasm collections, e.g. China—359, Sri Lanka—50, Indonesia—42, India—30, the Philippines—25 and Bangladesh—24 [3]
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