Effect of foliar spray of bio-regulators and npk on growth attributes of Ber (Zizyphus mauritiana L.)

Abstract

A field experiment was entiled to study the Effect of Foliar Spray of Bio-regulators and NPK on Growth, Yield and Quality of Ber (Zizyphus mauritiana Lamk. under loamy sand soils was conducted at Horticulture Farm, SKNAU, Jobner (Jaipur) during September, 2017 to March, 2018. It consisted of 20 treatment combinations with five levels of bio-regulators (Control, Thiourea @ 250 ppm and 300 ppm Salicylic acid @ 75 ppm and 100 ppm) and four levels of NPK (control, 0.5% NPK, 1.0% NPK and 1.5% NPK) in Randomized Block Design with three replications. The study revealed that the application of thiourea @ 300 ppm among the different bio-regulators and 1.5 per cent NPK significantly increased the growth attributes (Gain in plant height, gain in plant spread, length of primary branch, number of secondary branches per primary branch, leaf area, relative leaf water content and total cholorophyll content in leaves) over control.