Studies on influence of hydrating agents calcium ammonium nitrate CAN and sodium nitroprusside SNP on vegetative growth flower yield quality and heat tolerance capability of marigold cv Bidhan 2

Abstract

newline xx newlineAuthor : GANDHAM ADITYA newlineTitle of the thesis : Studies on influence of hydrating agents, calcium newlineammonium nitrate (CAN) and sodium newlinenitroprusside (SNP) on vegetative growth, flower newlineyield, quality and heat tolerance capability of newlinemarigold cv. Bidhan-2 newlineDegree for which it newlineis Submitted newline: DOCTOR OF PHILOSOPHY newlineFaculty : HORTICULTURE newlineMajor field : FLORICULTURE AND LANDSCAPE newlineARCHITECTURE newlineChairman of newlineadvisory committee newline: Dr. V. VIJAYA BHASKAR newlineUniversity : Dr. Y.S.R. HORTICULTURAL UNIVERSITY newlineYear of submission : 2024 newlineABSTRACT newlineThe present investigation entitled Studies on influence of hydrating newlineagents, calcium ammonium nitrate (CAN) and sodium nitroprusside (SNP) newlineon vegetative growth, flower yield, quality and heat tolerance capability of newlinemarigold cv. Bidhan-2 was carried out during summer from 1st week of March newlineto end of July, 2020 and 2021 at College of Horticulture, Dr. Y.S.R. Horticultural newlineUniversity, Anantharajupeta, Annamayya district of Andhra Pradesh. The newlineexperiment was laid out in a randomized block design with factorial concept newlineusing three factors viz., hydrating agents, calcium ammonium nitrate (CAN) and newlinesodium nitroprusside (SNP). The data recorded during the course of investigation newlineon various direct measurable parameters viz., morphological, reproductive, newlineflower quality, flower yield and certain estimated parameters viz., growth newlineanalysis, physiological, biochemical and nutrient uptake by the plant as well as newlinethe residual nutrient content available in soil i.e., after harvest of flowers were newlinestatistically analyzed and the results were summarized and concluded. newlineIn between the hydrogels, soil application of Pusa hydrogel at 1.25 g m-2 newlineexhibited significant positive influence on soil bulk density, water holding newlinecapacity, plant height, flower yield, chlorophylls content, physiological activities newlineand the antioxidative enzymes activity in comparison to Zeba hydrogel. newlineAmong the graded levels of nitrogen applied in soil, 100% nitrogen in the newlineform of CAN recorded significant positive influence on highe