Seed dormancy and germination in two wild genotypes of Sesbania of the southwest mangroves in India

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Published: May 15, 2015
Keywords:
Seed dormancy Seed germination Sesbania bispinosa Sesbania speciosa Mangroves Wild legumes

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Shreelalitha, S. J.
Department of Biosciences, Mangalore University, Mangalagangotri, Mangalore 574 199, Karnataka, India
Sridhar, K. R.
Department of Biosciences, Mangalore University, Mangalagangotri, Mangalore 574 199, Karnataka, India
Sukesh, S.
Department of Applied Botany, Mangalore University, Mangalagangotri, Mangalore 574 199, Karnataka, India

Abstract

Seed germination and vigour index of two wild legumes Sebania bispinosa and S. speciosa of the Nethravathi mangroves of Southwest India were evaluated. Seeds of S. bispinosa were more dormant compared to the seeds of S. speciosa. Among the physical treatments (soaking and elevation of temperature), soaking in distilled water (24 hr) resulted in highest seed germination as well as vigour index in both plant species. Among the chemical treatments (ethanol, sulfuric acid, thiourea, potassium nitrate and gibberelic acid), immersion in sulfuric acid (20 min) showed the highest seed germination and vigour index in S. bispinosa. In S. speciosa the highest germination and vigour index was seen by soaking in gibberellic acid (250 mg/l for 24 hr).

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How to Cite
Shreelalitha, S. J., Sridhar, K. R., & Sukesh, S. (2015). Seed dormancy and germination in two wild genotypes of Sesbania of the southwest mangroves in India. International Journal of Agricultural Technology, 11(4), 895–902. retrieved from https://li04.tci-thaijo.org/index.php/IJAT/article/view/6372
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Vol. 11 No. 4 (2015): May
Section
Original Study
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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