Janjit Adhikari*(1) Purushottam Dhodary(2) Manoj Joshi(3) Ram Dhan Tharu(3) Ashok Mandal(4) Rukmagat Pathak(3) and Puspa Raj Poudel(3)
(1). Department of Horticulture, Agriculture and Forestry University, Chitwan, Nepal.
(2). Department of Agronomy, Institute of Agriculture and Animal Science (IAAS), Kathmandu, Nepal.
(3). Department of Horticulture and Plant Protection, Institute of Agriculture and Animal Science (IAAS), Paklihawa Campus, Rupandehi, Nepal.
(4). Department of Plant Breeding, College of Agriculture, North Dakota State University, USA.
(*Corresponding author:Janjit Adhikari, E-mail: adk.janjit@gmail.com).
Received: 19/07/2020 Accepted: 11/08/2020
Abstract
An experiment was conducted at Rupandehi, Nepal from January to March, 2018 with an objective of investigating the effects of different concentrations viz. 0, 0.025, 0.05, 0.1, 0.2, 0.25, 0.3 and 0.5 % of Maleic Hydrazide (MH), foliar sprayed at the rate of 2 litres per 2.4 m2, 49 days after sowing (DAS)on growth, yield and bolting of radish. Field experiment was laid out in Randomized Complete Block Design (RCBD) with 4 replications. The MH concentration affected % change in plant height and no. of leaves per plant. Maximum root yield was obtained at 0.25% concentration (44.8 t ha-1) and minimum at 0.025% MH concentration (26.07 t ha-1). Bolting was significantly delayed (p<0.05) by increasing MH concentration. 0.25% MH concentration was found superior with respect to inhibitive effect on growth parameters, delayed bolting, highest root yield and B:C ration. The result must be replicated several times for proper validation of the results obtained.
Key words: Late winter, Maleic hydrazide, Growth retardation, Bolting delay.