Phenological behaviour and heat unit requirement of groundnut (Arachis hypogaea) genotypes under two dates of sowing during summer season


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Authors

  • AJMER SINGH BRAR
  • K K DHINGRA
  • J N KAUL

Keywords:

growing degree days, genotypes, heat unit requirement

Abstract

A field experiment was conducted during summer season of 1995 and 1996 to study the phenology and heat unit
requirement of the groundnut (Arachis hypogaea L.) genotypes as influenced by 2 dates of sowing. The 2 groundnut.
genotypes, viz 'M 13' and 'M 335' being of longer duration accumulated higher growing degree days, helio-thennal
unit and photo-thermal units at all the phenophases than the 'M 522', 'SO 84' and local genotypes. 'SO 84' the short
duration bunch genotype attained harvest maturity 5-10 days earlier than the other 4 genotypes and translocated highest
dry-matter towards pods at 93 and 114 days, while total dry-matter/plant was maximum in 'M 522' during both the
years. The date of sowing did not influence the various phenophases of any genotype.

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Author Biographies

  • AJMER SINGH BRAR

    Research Fellow, Punjab Agricultural University. Ludhiana 141 004

  • K K DHINGRA
    Professor (Agronomy), Department of Agronomy, Punjab Agricultural University. Ludhiana 141 004

  • J N KAUL
    Professor (Agronomy), Department of Agronomy, Punjab Agricultural University. Ludhiana 141 004

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Issue

Vol. 69 No. 6 (1999)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

BRAR, A. S., DHINGRA, K. K., & KAUL, J. N. (2013). Phenological behaviour and heat unit requirement of groundnut (Arachis hypogaea) genotypes under two dates of sowing during summer season. The Indian Journal of Agricultural Sciences, 69(6). https://epubs.icar.org.in/index.php/IJAgS/article/view/26796