Thermal requirements for flowering and fruit yield attainment in advance lines of okra

Authors

  • S. K. DHANKHAR Department of Vegetable Science, *Department of Agril Meteorology CCS Haryana Agricultural University, Hisar-125004, India
  • SURENDER SINGH Department of Vegetable Science, *Department of Agril Meteorology CCS Haryana Agricultural University, Hisar-125004, India

DOI:

https://doi.org/10.54386/jam.v15i1.1436

Keywords:

Okra, thermal requirement, advance line, thermal use efficiency

Abstract

The field experiment comprising 12 advance lines of okra was carried out to assess thermal requirement for flowering and total fruit yield during rainy seasons at CCS Haryana Agricultural University, Hisar. The results revealed that okra crop required 762.4 dayoC accumulated heat units for flowering and 1600.5 dayoC accumulated heat units for total fruit yield production. Advance line HRB 108-2 required minimum for flowering (664.4 dayoC) and highest 1644.8 dayoC for total fruit production with better thermal use efficiency (9.1 kg ha-1 ºD) indicating its suitability for early and more fruits availability for longer period. Fruit yield production showed significant positive association with heat unit requirement in all the years. The R2 values of regression equation could explain the variation  between 63-87% of the total variation in fruit production in okra.

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Published

01-06-2013

How to Cite

S. K. DHANKHAR, & SURENDER SINGH. (2013). Thermal requirements for flowering and fruit yield attainment in advance lines of okra. Journal of Agrometeorology, 15(1), 39–42. https://doi.org/10.54386/jam.v15i1.1436

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Section

Research Paper

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