Effects of different pre-treatments and germination media on seed germination and seedling growth of Parkia timoriana(DC.) Merr
Journal Title: Journal of Experimental Biology and Agricultural Sciences - Year 2017, Vol 5, Issue 0
Abstract
Parkia timoriana (DC.) Merr. is one of the lesser known multipurpose leguminous tree species found in North East India. Like many other legumes this species too have hard coated seeds which prevent seed germination and thus there is a need to investigate the most appropriate method to break its dormancy. Six pre treatments (tap water, gibberellic acid (GA3) @ 500 ppm, stratification, sulphuric acid @ 98%, boiling water and nicking) and two media (top of paper (TOP) and sand) were use to evaluate seed germination traits and initial growth parameters of the seedling of this tree species. Along with these pre treatments, seeds sown in TOP media and tap water gave maximum seed germination (72%) and it was followed by seeds exposed to GA3 for 24 hours (64%) while the least seed germination was reported in seeds treated with sulphuric acid (H2SO4) for 5 minutes. Least germination time (Mean Germination Time) was reported from the seeds treated with H2SO4 for 1 minute while maximum was reported from the boiling water treatments. Under sand medium, highest germination was reported in control (66.67 %) and it was followed by boiling water treatment (58.33%) and minimum (16.67%) in seeds treated with H2SO4 for 5 minute. Seed treated with H2SO4 for 5 minutes took minimum germination time too. Interestingly, irrespective to the media, all the seedling growth parameters showed maximum response towards hormonal (GA3) treatment and minimum towards H2SO4 treatment. Significant correlations were found between all the seedling growth parameters except for collar diameter and root-shoot ratio.
Authors and Affiliations
Uttam Thangjam , Uttam Kumar Sahoo
Keywords
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- EP ID EP428095
- DOI 10.18006/2017.5(1).098.105
- Views 24
- Downloads 0
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