Effect of growth regulators on spike yield and quality parameters of goldenrod (Solidago canadensis L.) Cv. golden gate

Abstract

This work explains the growth regulators that are responsible for spike yield and quality production of goldenrod (Solidago canadensis L.) cv. Golden gate. The experiment shown in this work was conducted at Department of Horticulture, SHUATS, Prayagraj, U.P. during rabi season of 2020-2021 to find out the most suitable treatment of growth regulators for growth and quality of goldenrod (Solidago canadensis L.) with different concentrations of GA3 (150,200 and 250 ppm), CCC (500, 750 and 10-00 ppm), NAA (100,150 and 200 ppm) and MH (750 and 1000 ppm) along with control (water spray). A comparative study was performed and it was observed that among all the treatments GA3 250 ppm showed an increase in spike length (72 cm), number of spikes per plant (5.8), estimated yield per hectare (5,59, 744.7 spikes/ ha-1) and spike weight (63.4 g), while CCC 1000 ppm increased flower quality viz; longevity of spike in situ (14 days) and vase of spike (9.12 days). Among all the growth regulators, plants treated with GA3 at all levels (150, 200, and 250 ppm) proved to be the best in terms of growth and yield of goldenrod.