Effect of different combinations of PGR’s and micronutrients on growth and flowering of papaya (Carica papaya L.) cv. pusa Nanha

Abstract

An investigation was carried out to assess the “Effect of different combinations of PGR’s and micronutrients on growth and flowering of papaya (Carica papaya L.) cv. Pusa Nanha” during 2013-14 and 2014-15 at Central Research Field, Department of Horticulture, Sam Higginbottom University of Agricultural Technology and Sciences, Allahabad, U.P. The experiment was laid out in Randomized Block Design (RBD) with fifteen treatment combinations replicated thrice. Observations were recorded during both year of successive experiment on growth and flowering characters of papaya like plant height (cm), stem girth (cm), number of leaves and initiation of first flower. The results revealed that all micronutrients and their combinations with PGR’s significantly influenced the vegetative growth and flowering of papaya during both experimental years. Among them foliar application of Copper sulphate 0.25% + Manganese sulphate 0.25% + NAA 30 ppm + GA3 60 ppm (T15) attained maximum pooled value in terms of plant height (cm) (139.99 cm), stem girth (cm) (42.69 cm), number of leaves (29.52) where as minimum days taken for initiation of first flower (103.83) with the spray of Copper sulphate 0.25%+ Manganese sulphate 0.25% (T5).