Effect of Sowing Dates on the Yield of Sunflower

Authors

  • Bulbul Ahmed Plant Physiology Division, BARI, Joydebpur, Gazipur
  • Mousumi Sultana Tuber Research Sub-Center, BARI, Seujgari, Bogra
  • Jesmin Zaman Department of Agricultural Extension, Khamar Bari, Dhaka
  • Santos Kumar Paul Agronomy Division, BARI, Joydebpur, Gazipur
  • Md Mokhlesur Rahman Department of Environmental Science, Jahangir Nagor university, Dhaka
  • Md Rezaul Islam Larsen Chemical Industries, Dhaka
  • Falguni Majumdar Department of Agricultural Extension, Khamar Bari, Dhaka

DOI:

https://doi.org/10.3329/baj.v18i1.25561

Keywords:

Sowing dates, yield and Sunflower

Abstract

The experiment was carried out at Agronomy Research field of Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur and Regional Agricultural Research Station, Hathazari, Chittagong to find out optimum sowing date of sunflower during rabi season 2012-13. The sunflower var. BARI Surjomukhi-2 was used. Five sowing dates; 10 November, 20 November, 30 November, 10 December and 20 December were tested. It was revealed that yield and yield attributes of sunflower were significantly influenced by sowing dates. The maximum plant height (172.13 cm), head diameter (18.33), weight of seed / per head (66 g), 1000- seed weight (68 g) and yield (2.5 t ha?1) were obtained from 20 November sowing. The lowest yield (1.83 t ha?1) was obtained from 20 December sowing. The 20 November sowing received the higher duration for maturity (127 days), first flowering (57 days) and seed formation (20 days) while 20 December sowing showed shorter duration for maturity, first flowering and seed formation of 119, 54 and 14 days respectively. It was concluded that the 20 November sowing would be the optimum time of sowing for achieving maximum yield of sunflower.

Bangladesh Agron. J. 2015, 18(1): 1-5

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Author Biography

Bulbul Ahmed, Plant Physiology Division, BARI, Joydebpur, Gazipur



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Published

2015-11-05

How to Cite

Ahmed, B., Sultana, M., Zaman, J., Paul, S. K., Rahman, M. M., Islam, M. R., & Majumdar, F. (2015). Effect of Sowing Dates on the Yield of Sunflower. Bangladesh Agronomy Journal, 18(1), 1–5. https://doi.org/10.3329/baj.v18i1.25561

Issue

Vol. 18 No. 1 (2015)

Section

Original Articles

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