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Effect of Seed Priming, Trichoderma and Fungicide on Yield Performance of Dry Direct Seeded Boro Rice Cv. BRRI Dhan28

M.J. Ali
Department of Agronomy, Bangladesh Agricultural University, Mymensingh, Bangladesh

M.M. Rahman
Department of Agronomy, Bangladesh Agricultural University, Mymensingh, Bangladesh

M.M. Masood
Department of Agronomy, Bangladesh Agricultural University, Mymensingh, Bangladesh

Abstract/ Executive Summary:

The experiment was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh during January to June 2012 to study the effect of seed priming, Trichoderma and fungicide on the yield performance of dry direct seeded Boro rice. The experiment comprised three seed priming treatments such as osmo-priming, hydro-priming and no priming; and five Trichoderma and fungicide treatments such as seed treatment with Trichoderma, spraying of sulphur fungicide (Thiovit), propiconazole (Potent) fungicide and sulphur fungicide + propiconazole fungicide at 20 days after sowing (DAS) and a control treatment. BRRI dhan28 was used as plant material in the experiment. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The result showed that the highest plant height, number of tiller, number of panicle and number of filled grain were found with osmo-priming treatment, while those were the lowest with no priming treatment. The highest number of tiller, number of panicle and number of filled grain were observed with Trichoderma treatment and those were the lowest with control treatment. The highest grain yield, straw yield and harvest index were recorded with Trichoderma treatment whereas the lowest grain yield, straw yield and harvest index were found with control treatment. Thus, the result concludes that sowing of osmo-primed seed followed by Trichoderma seed treatment increases the yield of dry direct seeded Boro rice.

Keywords: Dry direct seeded, Seed priming, Trichoderma, Osmo-priming, Hydro-priming.

Location: Agronomy Field Laboratory, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh

Start Date: 00-01-2012

End Date: 00-06-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To investigate the effect of seed priming, Trichoderma and fungicide application on yield performance of dry direct seeded Boro rice.

Methodology:

Two experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh during Boro season (January to June) 2012 to study the effect of seed priming, Trichoderma and fungicide on the yield performance of dry direct seeded Boro rice. Experiment comprised three seed priming treatments viz. osmo-priming, hydro-priming and no priming and five Trichoderma and fungicide treatment combinations viz. Trichoderma harzianum, sulphur fungicide (Thiovit), propiconazole fungicide (Potent), sulphur fungicide + propiconazole fungicide, and control (no fungicide or Trichoderma) treatment. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The plot size was 4.0 m × 2.5 m with 1 meter drain in between two plots to manage the irrigation easily. BRRI dhan28 was used as test crop and seed was sown at 25 cm × 15 cm spacing allocating 4 seeds hill^-1. The sowing was done on 5 January 2012. Hydro-priming and osmo-priming were done by soaking seeds in tap water and in 3% ZnSO₄ solution, respectively for 24 hours followed by incubation at 35 ºC for 30 hours. T. harzianum inoculum was mixed with seed at the rate of 4% of seed weight just before sowing. The land was fertilized with N, P, K, S and Zn @ 120, 14, 58, 8 and 1 kg ha^-1 in the form of urea, triple supper phosphate (TSP), muriate of potash (MoP), gypsum and zinc sulphate, respectively. All the fertilizers except urea were applied at final land preparation. Urea was top dressed in three equal splits at 30, 45, and 65 days after sowing (DAS). Sulphur and propiconazole fungicide were applied at 20 DAS @ 2.5 kg ha^-1 and 0.5 litre per hectare, respectively. A pre-emergence herbicide Panida (Pendimethalin) was applied at 2 DAS @ 2 litre ha^-1. In addition, three hand weedings were done at 30, 45, and 65 DAS. Land preparation was done with residual moisture and therefore, no irrigation was required during land preparation. Then five irrigations were done at 40, 55, 70, 85 and 90 DAS. Standing water of 3- 4 cm was maintained during irrigation at 85 and 90 DAS. As sufficient rainfall occurred during from 93 DAS to physiological maturity, irrigation was not required. Crop management was done following standard agronomic practices when necessary. The crop was harvested on 19 May in 2012 crop season. At 80% grains maturity, the number of tillers and panicle m^-2 were counted from the central 3.6 m² area of each plot. The plant height was recorded from randomly selected five hills. The number of grains and unfilled spikelets panicle^-1 were counted from the randomly selected 10 panicles of the harvested crops. Grain and straw yields were recorded after sun drying. Grain yield was adjusted to 14% moisture content. Harvest index was calculated as percentage of grain yield to total above ground biomass. The weight of 1000 grain was also recorded from the collected grains of each plot. All data were analyzed using the analysis of variance (ANOVA) technique with the help of computer package programme MSTAT-C and mean comparisons of the treatments were evaluated by Duncan's Multiple Range Test (DMRT).

Source of Information: J. Agrofor. Environ. 8 (2): 139-142, 2014; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest number of tiller, number of panicle and number of filled grain were observed with Trichoderma treatment and those were the lowest with control treatment. The highest grain yield, straw yield and harvest index were recorded with Trichoderma treatment whereas the lowest grain yield, straw yield and harvest index were found with control treatment. Thus, the result concludes that sowing of osmo-primed seed followed by Trichoderma seed treatment increases the yield of dry direct seeded Boro rice.

Knowledge Management: Journal