Agrometeorological indices of white clover (Trifolium repens) in western Himalayas

Authors

  • RAKESH KUMAR Natural Plant Products Division, CSIR-Institute of Himalayan Bioresource Technology Post Box No 6, Palampur 176 061 (HP), India
  • MUNISH KAUNDAL Natural Plant Products Division, CSIR-Institute of Himalayan Bioresource Technology Post Box No 6, Palampur 176 061 (HP), India
  • S. K. VATS Biodiversity Division, CSIR-Institute of Himalayan Bioresource Technology Post Box No 6, Palampur 176 061 (HP), India
  • SANJAY KUMAR Biotechnology Division CSIR-Institute of Himalayan Bioresource Technology Post Box No 6, Palampur 176 061 (HP), India

DOI:

https://doi.org/10.54386/jam.v14i2.1410

Abstract

Field experiments were conducted during 2009-2010 and 2010-2011 to study the growth performance of white clover (Trifolium repens L.) under different temperature regimes over the crop growth period. The agroclimatic indices for temperature viz., growing degree days (GDD), heliothermal units (HTU) and photothermal units (PTU) were computed for different phenological stages of the crop. Changes in weather parameters concomitant to different sowing time caused significant variation in the performance of the crop. The results indicated that the early sown crop had longer crop span (205 days) than the late sown (142 days). From emergence to seed maturity, white clover accumulated GDD of 2314±72 °C days, HTU of 17791±409 °C days hour and PTU of 29412±742 °C days hour, respectively. Positive correlations were found between fresh leaf weight, fresh stem weight and fresh root weight for GDD, HTU and PTU.

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Published

01-12-2012

How to Cite

RAKESH KUMAR, MUNISH KAUNDAL, S. K. VATS, & SANJAY KUMAR. (2012). Agrometeorological indices of white clover (Trifolium repens) in western Himalayas. Journal of Agrometeorology, 14(2), 138–142. https://doi.org/10.54386/jam.v14i2.1410

Issue

Vol. 14 No. 2 (2012): December

Section

Research Paper

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