Regulation of Summer Season Flowering to Enhance the Flowering and Physical Parameters of Mrig Bahar in Guava (Psidium guajava l.) Cv. Lucknow-49 under Sodic Soil

Abstract

The present investigation entitled “Regulation of summer season flowering to enhance the Flowering and physical parameters of mrig bahar in guava (Psidium guajava L.) cv. Lucknow-49 under sodic soil” was carried out at Production Processing of Usar Waste Land Akma, Department of Fruit Science, Acharya Narendra Deva University of Agriculture and Technology, Narendra Nagar (Kumarganj), Ayodhya (U.P.) during 2021-22. The experiment was conducted in a Randomized Block Design with three replications and ten treatments. The treatments were Urea (15, 20 and 25%), NAA (75, 150 and 225 ppm), 2,4-D (20, 40 and 60 ppm) and control applied on second week of April. The results denoted that all the treatments were emphatic in summer deblossoming and enhanced the physical attribute of fruits throughout both season over the control, however, maximum yield per plant, maximum no. of fruits per plant, maximum fruit set percentage and minimum flower drop percentage was recorded with control in rainy season. The profitable effects of the treatments tried were observed to be more prominent in winter season crop than the rainy season crop. Among the treatments, deblossoming with Naphthalene Acetic Acid (NAA) 225 ppm showed maximum enhancement in Flowering characters viz. Percent flower drop (%), Percent fruit set (%) and fruit physical characters viz. Number of fruits per plant, fruit length (cm), width (cm), weight (g), fruit yield per plant (kg/tree) over the control in winter season as well as in rainy season crop.