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Influence of GA3 and IAA and their Frequency of Application on Seed Germination and Seedling Quality Characters

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Effect of plant growth regulators on seed germination and seedling characters in terms of root length and shoot length. The seeds of sesame variety TVM – 1 were treated with different concentration of gibberlic acid (1.0, 2.0, 3.0 and 4.0 mg/l) and indole acetic acid (1.0, 2.0, 3.0 and 4.0 mg/l). From the results, it was observed that the GA3 and IAA at 2.0mg/l had regulatory effect on seed germination and seedling characters. Maximum germination, root length and shoot length was observed at 2.0mg/l in GA3 and 2.0mg/l in IAA than control. And GA3 at 2.0gm/l was found to be more efficient to modify seed germination and seedling characters when compared to IAA and control.


International Letters of Natural Sciences (Volume 30)
M. Subash et al., "Influence of GA3 and IAA and their Frequency of Application on Seed Germination and Seedling Quality Characters", International Letters of Natural Sciences, Vol. 30, pp. 44-48, 2015
Online since:
December 2014

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