Vegetative propagation of Karanja (Pongamia pinnata L. Pierre ) through stem cuttings

Abstract

Abstract:The present study on vegetative propagation of Karanja ( Pongamia pinnata L.Pierre ) through stem cuttings showed maximum sprouting (100%), rooting (90%), rooting length (28.33 cm), root number (24.66), fresh biomass (63.66 g), dry biomass (34.38 g) in semi hard wood cutting of 25 cm length treated with 1000 ppm IAA, hard wood cutting of 25 cm length treated with 800 ppm IBA, hard wood cuttings of 15 cm length treated with 1000 ppm IAA, hard wood cutting of 25 cm length treated with 2000 ppm IAA, semi hard wood cuttings of 25 cm length treated with 200 ppm IBA, and hard wood cutting of 25 cm length treated with 1000 ppm IAA, respectively. It showed that hard wood cuttings of 25 cm length treated with IBA promotes better sprouting, rooting percent, root number and biomass than IAA. For production of healthy seedlings the semi hard wood cutting of 25 cm length should be treated with 200 ppm IBA.

A critical review of Pongamia pinnata multiple applications: From land remediation and carbon sequestration to socioeconomic benefits

“…Wedge grafting, using young seedlings in polybags as stock and semi-hardwood sections of 12-15 cm length, have shown to be 95% successful with plants producing seeds within three years (Mukta and Sreevalli, 2010). However, seasonal changes can reduce the success rate to 85% (Rout and Nayak, 2015b). More recently, epicotyl grafting has also been used successfully to propagate Pongamia with factors such as age of root stock and season also having an impact on success rates (Kala et al, 2020).…”