Pre-Planting Hardening-Induced Variability in Yield Attributes and Yield of Inbreed and Hybrid Rice

  • Sadia Masrufa Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207
  • Anisur Rahman Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207
  • Md Hasanuzzaman Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207
  • Taufika Islam Anee Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207
  • Md Hazrat Ali Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207
  • Mirza Hasanuzzaman Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207
Keywords: Seedling hardening, Hybrid rice, Seedling storage, Transplanted rice

Abstract

Short term hardening before transplanting may enhance the defence mechanism of rice seedlings against any stress during their establishment and contribute d to enhanced growth and yield. Thus, this study was conducted involving one local inbred (Pajam), one popular high yielding (BRRI dhan53) and one hybrid (BRRI hybrid dhan4) rice variety. The experiment was laid out in randomized complete block design with two factors. Seedlings were transplanted directly to the main field as a control treatment and/or subjected to four different hardenings like seedlings storage in shade, open field under sunlight, float in water and cold air in refrigerator before transplantation. Hybrid variety out yielded both the local and inbred varieties due to their highest effective tillers, longer panicle length and 1000-grain weight. Pre-hardening of seedlings in open field under sunlight conditions enhanced the yield attributes and ultimate yield of rice compare to others. The best combination was pre-hardening seedlings in open field conditions with hybrid cultivar regarding to the yield attributes and final yields. It is suggested that hybrid variety and prehardening of seedlings before transplantation to the main field could be increase the rice yield productions

Bangladesh Agron. J. 2016, 19(1): 87-97

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Author Biography

Sadia Masrufa, Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka-1207


Published
2016-10-09
How to Cite
Masrufa, S., Rahman, A., Hasanuzzaman, M., Anee, T., Ali, M. H., & Hasanuzzaman, M. (2016). Pre-Planting Hardening-Induced Variability in Yield Attributes and Yield of Inbreed and Hybrid Rice. Bangladesh Agronomy Journal, 19(1), 87-97. https://doi.org/10.3329/baj.v19i1.29875
Section
Original Articles