Effect of plant growth regulators and rooting media on growth and survival of air layering of Kagzi lime Citrus aurantifolia Swingle

Abstract

The present investigation was carried out to investigate the Effect of plant newlinegrowth regulators and rooting media on growth and survival of air layering of newlineKagzi lime (Citrus aurantifolia Swingle) at the Horticulture garden, Department of newlineFruit Science, Chandra Shekhar Azad University of Agriculture and Technology, newlineKanpur (U.P.) during rainy season of 2018-19 and 2019-20. The experiment was newlinelaid out in a Factorial C.R.D. and Factorial R.B.D. with twenty treatments and three newlinereplications. Two level each of IBA and NAA (2000 and 4000 ppm) four rooting newlinemedia viz. soil, F.Y.M., vermicompost and moss grass and these rooting media newlinewere also taken as a unit of control. Layering operation was done on 10 July newlineduring the year 2018-19 and 2019-20. All the root parameters i.e. callus newlineformation, days to root initiation, root formation, diameter, fresh and dry weight newlineof roots and rooting percentage were significantly enhanced with IBA 4000 ppm newlinetreatment as well as rooting media moss grass individually during both years of newlinestudy. Root initiation was also hastened with these treatments. All the interactive newlinetreatments as well as influence within control did not show significant variation newlineon root parameters barring rooting percentage. It was, however, maximized with newlineIBA 4000 ppm × moss grass and moss grass tested as a unit of control. newline newline