EFFECT OF FERTILIZER AND PLANT GROWTH REGULATOR ON LEAF BLIGHT OF WHEAT

Abstract

A field experiment was conducted at the research field of Agricultural Research Station (BARI), Dinajpur during period of December 2023 to April 2024 to evaluate the effect of fertilizer and PGR application on leaf blight disease of wheat. Randomized complete block design with four replications and five treatments was followed for the experiment. The variety of BARI Gom 33 was used in this experiment. The treatments used in the experiment were T1:100% FRG recommended dose (control), T2: FRG recommended dose (100% urea+85% TSP +100% MoP) + ROOTOPEX, T3: FRG recommended dose (100% urea+75% TSP +100% MoP) + ROOTOPEX, T4: FRG recommended dose (100% urea+50% TSP +100% MoP) +ROOTOPEX and T5: Farmers practice (650g urea+550g TSP+450g MoP). In this experiment after 95 DAS, percentage of disease leaf area and severity both were found the highest at T1. In case of percentage of normal seeds, T2 showed the highest result having 73.75% where Rootopex was applied. Percentage of undersized seeds were recorded the highest at T1 having 20.50%. On the other hand, percentage of broken and black pointed seeds were found the highest at T5. In case of total number of grains per spike, T2 showed the highest percentage. About yield, the highest amount noted at T2 having 12.32kg/plot . In case of seed health seeds, seeds from Rootopex applied plot showed very impressive result like the highest percentage of germination recorded at T2 having 92%. When it comes to percentage of pathogen associated with seeds, T5 showed maximum valued. In this experiment fertilizer combined with plant growth regulator (PGR) showed positive response among maximum parameters.