Effect of Drip irrigation System on Physiology of Papaya  

P. Indhumathi1 , D. Durga devi1 , P. Jeyakumar1 , J. Auxcilia2
1. Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India
2. Department of Fruits, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India
Author    Correspondence author
International Journal of Horticulture, 2014, Vol. 4, No. 1   doi: 10.5376/ijh.2014.04.0001
Received: 20 Nov., 2013    Accepted: 25 Dec., 2013    Published: 02 Jan., 2014
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This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Indhumathi et al., 2014, Effects of Drip Irrigation Sysyems on Physiology of Papaya, International Journal of Horticulture, 2014, Vol.4, No.1 1-3 (doi: 10.5376/ijh.2014.04.0001)


The Field experiment was conducted at College Orchard, HC&RI, Tamil Nadu Agricultural University and Coimbatore. The variety Pusa Dwarf was subjected to various levels of 100%, 80%, 60%, 40% evaporation replenishment at different growth stages of the crop. Higher content of relative water content (87.70%) and soluble protein (28.60 mg/g) and chlorophyll stability index (85.74%) thus expressed the higher response in nitrate Reductase activity (152.17 µmol CO2 m-2 s-1)at all stage of the crop.

Evaporation replenishment; Soluble protein; Chlorophyll stability index; Nitrate; Reductase activity
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