Study of vegetative propagation of guava (Psidium guajava L.) Cv. Gwalior-27 throws air layers with different concentration of PBZ.

Abstract

The experiment conducted during 2017-18 at research orchard of Horticulture, College of Agriculture, Gwalior in sandy clay loam soil. Study of Vegetative Propagation of Guava (Psidium guajava L.) Cv. Gwalior-27 throws air layers with different concentration of PBZ. The present experiment comprising 3 sources of PBZ Harmon Co, 250ppm, 500ppm were laid out in randomized block design with three replications. experiment Results revealed that maximum root parameter viz., callus formation (0.25mm) rooting percentage(84.44%),no of primary adventitious root (13.26) no of secondary adventitious root (31.21) length of root (3.34) diameters of root (0.44mm),fresh weight of root (1.25g), dry weight of root(0.61g), growth parameter viz., number of leaves(11.92), number of new sprout /layer(4.43), length of shoot(23.78cm), and survival percentage(64.95%), was observed under 500ppm PBZ. Which was significantly higher the other treatment of PBZ. Highest value of all parameters was recorded 500ppm PBZ and the lowest value of recorded under without PBZ Harmon.