Effect of Bio-Stimulant Application on Seed Yield and Seed Quality in Rice (Oryza sativa L.)

Author: Elavarasan E., A. Kamaraj, B. Sunil Kumar, P. Satheeshkumar and S. Suganthi

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Abstract

Bio-stimulant has demonstrated advantages in crop growth and seed quality across a range of crops. Due to low field population and nutrient disorders after transplanting—possibly as a result of inadequate root establishment —rice production was decreased. By keeping these criteria, a field trial was carried out to study the effect of root dipping with seaweed extracts on seed yield and quality in rice cv. ADT 36. The seedling's roots were dipped in seaweed extract of two species viz., Gracilaria carticata and Sargassum wightii in different concentrations viz., 5%, 10%, 15%, and 20% for 1 hour each, along with the control. The results showed that the roots of rice seedlings before transplanting dipped in 20% Sargassum wightii seaweed extract for 1 hour registered higher values for growth parameters and yield parameters. The harvested seeds from the plants of the above treatment registered the better seed quality which could be a boon to the farmers for getting the better crop and yield. Hence, the roots of rice seedlings before transplanting could be dipped in 20% Sargassum wightii seaweed extract for 1 hour to acquire better seed yield and seed quality.

Keywords

Rice, root dipping, Seaweed extract, seed quality, seed yield

Conclusion

Overall, the results of the field experiment suggest that the use of seaweed extract, particularly Sargassam wightii, as a root dipping treatment for rice seedlings before transplanting can significantly improve various growth parameters and seed yield. The presence of nutrients, growth hormones, and other bioactive compounds in seaweed extract may have contributed to the observed effects on plant growth and development. The highest concentration of seaweed extract (20%) showed the most significant improvements in plant height, number of tillers, panicle length, leaf length, leaf breadth, number of seeds per panicle, seed yield per plant, and dry matter yield per plant. The current study concluded that the roots of rice seedlings before transplanting could be dipped in 20% Sargassum wightii seaweed extract concentration for 1 hour to realize better seed yield and seed quality. These findings support the potential use of seaweed extract as a natural and sustainable plant growth regulator in rice seed production.

References

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How to cite this article

Elavarasan E., A. Kamaraj, B. Sunil Kumar, P. Satheeshkumar and S. Suganthi (2023). Effect of Bio-Stimulant Application on Seed Yield and Seed Quality in Rice (Oryza sativa L.). Biological Forum – An International Journal, 15(10): 493-497.