Effect of Seed Coating Types and Storage Period after Coating on Seed Germination (%) and Seedling Vigour in Pigeonpea

Author: A. Akhil Reddy*, P. Sujatha , K. Jhansi Rani , B. Pushpavathi , T. Rajeshwar Reddy and K. Raghavendra

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Abstract

Biological seed coating is a new seed treatment technology in which biological agents are coated on the seed surface to control seed and soil-borne pathogens. Using a biofriendly polymer as an adjuvant, pigeonpea seed was biologically coated with Trichoderma viride, Pseudomonas fluorescens, Phosphorus solubilizing bacteria (PSB), and Rhizobium spp. The current study, titled "Studies on effectiveness of biological seed coating on seed quality parameters of Pigeonpea (Cajanus cajan L.), was performed at Department of Seed Science and Technology, Seed Research and Technology Centre and Agriculture Research Station, Tandur, PJTSAU, Hyderabad during the summer of 2018, Kharif of 2018, and Rabi of 2018-19 to investigate the effect of different types of seed coating and storage time after seed coating on pigeonpea seed germination (%) and seedling vigour. During the six-months storage period, the seed quality parameters were evaluated at bimonthly intervals. Six months after treatment, seed c

Keywords

Pigeonpea, Biological seed coating, Biocontrol, biofriendly polymer, seed germination(%), seedling vigour.

Conclusion

Seed quality parameters were gradually decreased with the increase in storage period from initial month to 6MAT in pigeonpea. With regard to type of seed coatings, seeds coated with deltamethrin (insecticide) @ 0.04 ml kg-1seed + T. viride @ 4 g/kg seed + P. fluorescens @ 4 g/kg seed + B. subtilis @ 4 g/kg seed + Rhizobium @ 4 g/kg seed + biofriendly polymer (adjuvant) @ 4 g/kg seed showed good longevity by recording less reduction in seed germination (11%), SVI- I (776), SVI- II (12), compared to untreated control (24 %, 1012 and 22, respectively). Period of storage after seed coating showed a significant effect on seed quality parameters. Seeds coated 4 months before with insecticide (deltamethrin @ 0.04 g kg-1 seed) + bioagents (T. viride @ 4 g kg-1 seed + P. fluorescens @ 4 g kg-1 seed + B. subtilis @ 4 g kg-1 seed + Rhizobium @ 4 g kg-1 seed) + biofriendly polymer (@ 4 g kg-1 seed) showed better longevity by recording more SVI I (1250) and SVI II (67) at 6 months after storage and

References

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How to cite this article

A. Akhil Reddy*, P. Sujatha, K. Jhansi Rani, B. Pushpavathi, T. Rajeshwar Reddy and K. Raghavendra (2022). Effect of Seed Coating Types and Storage Period after Coating on Seed Germination (%) and Seedling Vigour in Pigeonpea. Biological Forum – An Inte