Effect of plant growth regulators in micropropagation of Piper longum Linn. – An endangered medicinal plant Remi Simon T.S. Swapna chapter 4.pdf Keywords Embryogenesis Multiple shooting Piper longum Plant growth regulators Year 2011 Volume Vol 1 Serial 4 Read more about Effect of plant growth regulators in micropropagation of Piper longum Linn. – An endangered medicinal plant