Spin-priming - A novel and a crucial treatment to enhance the seed quality of roselle (Hibiscus sabdariffa) seeds

Spin-priming - A novel and a crucial treatment to enhance the seed quality of roselle (Hibiscus sabdariffa) seeds T Mullai https://orcid.org/0009-0003-2436-7819 K Malarkodi https://orcid.org/0000-0002-8974-9389 G Sasthri https://orcid.org/0000-0002-7981-5952 M Visalakshi https://orcid.org/0000-0001-5113-9908 T Anand https://orcid.org/0000-0001-8230-4494 S Kavitha https://orcid.org/0000-0002-7045-4062 M Bhaskaran https://orcid.org/0009-0006-4350-6337 K Natarajan https://orcid.org/0000-0002-6298-3626

Seed vigour being an important physiological parameter is important indeed in medicinal plant like roselle in which it is increased significantly by standardization of conventional priming (hydro-priming) duration and spin-priming duration of (Hibiscus sabdariffa) then compared with the non - primed seeds. The standardisation of hydropriming was performed by soaking of seeds in equal volume of water for various soaking durations viz., 2-5 h and restored to its initial state of moistness revealed that hydropriming of roselle seeds for 5 h registered higher physiological seed quality parameters. The best performed hydropriming duration of 5 h was taken for standardisation of spin - drying duration by adopting several drying timings viz., 1-5 min. The results indicated that the seeds hydro-primed (5 h) and spin-dried for 4 min had a significant improvement in physiological parameters, seed anatomical structure namely length (8.4 cm) and width (2.33 cm) of the embryo and root growth was seen evident through root architecture analysis. The % increase in germination over control in hydro-priming and spin-drying for 5 h and 4 min was 51 and the expresses the maximum vigour index of 1612.
11 22 2024 https://creativecommons.org/licenses/by/4.0 10.14719/pst.5099 https://horizonepublishing.com/journals/index.php/PST/article/view/5099 https://horizonepublishing.com/journals/index.php/PST/article/download/5099/4428 https://horizonepublishing.com/journals/index.php/PST/article/download/5099/4428 https://horizonepublishing.com/journals/index.php/PST/article/download/5099/4429