Effect of Pre-sowing Seed Treatment with Growth Regulators on Germination and Vigour in Mungbean (Vigna radiata (L.) Wilczek)
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Keywords:
Mungbean, growth regulators, germination percentage, vigour index.Abstract
An investigation was carried out during summer 2004 to evaluate the performance of four different mungbean varieties (Pusa Vishal, PS-16, Pusa-9531 and Pusa-9072), where pre-sowing seed treatment was given with five plant growth regulators viz. Gibberellic acid (GA), Benzoic acid (BA), Indole acetic acid (IAA), 2, 3, 5-triiodo benzoic acid (TIBA) and 2, 4-dichloro phenoxy acetic acid (2, 4-D), each with three concentrations (101, 102, 103 ppm). The improvement in germination and vigour was seen with TIBA and 2, 4-D in only two cultivars, both having 90% germination. In the other two cultivars with 95-96% germination, there was no improvement. Similarly the reduction with GA and IAA was seen in two cultivars with 90% germination except BA showing reduction in all the four cultivars.
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References
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