Impact of different treatments on mat type seedling

Abstract

Since seedlings are raised throughout the chilly months of November and December, a cold mitigation technique at the seedling stage is a must during Boro season. This study was conducted at Agricultural and Bio-systems Engineering Lab under Farm Power and Machinery department at Sylhet Agricultural University during the 2018-19 academic year. The study aimed to evaluate the effect of biotic or abiotic factors that influenced seedling germination and growth during Boro season. With three replications, the experiment was done in a two-factor design. As abiotic stress control variables, a total of six treatments were taken under two different thicknesses (0.04 mm and 0.08 mm) of white polythene shed covering day time alone (12 hours) and day and night time (24 hours). To reduce biotic stress on early seedlings grown in plastic trays, two fungicides (Atavo and Autostin) and MoP fertilizer were employed in germination and rolling quality of seedling mat, seedling elevated plastic trays showed significantly superior results compared to the traditional method. In the uncovered tray, where no treatment was given, the fungal infection was severe. Seedlings that covered both thicknesses of polythene (0.04 mm and 0.08 mm) and prepared seed with both fungicides (Atavo and Autostin) exhibited significant resistance to fungal attack. Consequently, 0.08 mm thick white polythene as a covering mechanism and MoP as a treatment method was advised for seedlings growing in Sylhet's cold weather. Pre-treated seedlings with Autostin and the biotic stress management component fungicide Atavo recommended to avoid fungal infestation.