Improvement of Weed Competitiveness and Yield Performance of Dry Direct Seeded Rice through Seed Priming

Abstract

The study was carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University during January to May 2019 to investigate the seed priming influence on the growth, weed suppression ability and yield of BRRI dhan29 and weed growth under dry direct seeded (DDS) condition. Seed priming agents included NaCl (20000 and 30000 ppm), KCl (20000 and 30000 ppm), CaCl2 (20000 and 30000 ppm), CuSO4 (50 and 75 ppm), ZnSO4 (10000 and 15000 ppm), Na2MoO4 (2 and 3 ppm), PEG (100 and 150 ppm) and control (no priming). The experiment was laid out in a randomized complete block design with three replications. Data were collected on growth, yield parameters, yield of rice and weed growth in terms of weed density and dry matter. Rice plant height and tillering ability were significantly enhanced due to seed priming. Among yield parameters, number of effective tillers hill-1 and number of grains panicle-1 were positively influenced due to seed priming resulting yield enhancement up to 18% compared to control. But, seed priming failed to enhance the weed competitiveness of rice resulting similar weed growth for primed and control treatments. Therefore, seed priming with 20000 ppm KCl or 20000 ppm CaCl2 may be practiced for enhancing yield of BRRI dhan29 under DDS condition.

References

1. Reference 1 Professor Dr. Deborah P. Rondanini Department of Plant Production University of Buenos Aires ARGENTINA E-mail: [e-mail]
2. Reference 2
3. Dr. Md. Kamal Uddin Associate Professor Department of Land Management Faculty of Agriculture Universiti Putra Malaysia MALAYSIA E-mail: [e-mail]