Role of humic acid and spraying with the growth regulator CPPU in improving the vegetative traits of some citrus rootstocks

Authors

  • Rafah S. Hashoosh Horticulture and Landscape Department, College of Agriculture, University of Kerbala, Kerbala, Iraq.

DOI:

https://doi.org/10.59658/jkas.v12i4.5211

Abstract

The experiment was carried out in the shade of the Department of Horticulture and Landscape / College of Agriculture / University of Kerbala for the period from (1/3/2024) to (1/11/2024). To evaluate the response of citrus rootstocks to soil-applied humic acid and foliar application of CPPU on vegetative growth traits of six-month-old seedlings, a 3×3×3 factorial experiment was conducted using a completely randomized block design (CRBD) with three replicates. Treatments included humic acid (0, 3 and 6 g L-1), CPPU (0, 5 and 10 mg L-1), and three citrus rootstocks (Rangpur, Macrophylla, Sour Orange). The humic acid soil addition treatment 6 g L-1 significantly outperformed the control treatment

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Published

12/30/2025

How to Cite

Rafah S. Hashoosh. (2025). Role of humic acid and spraying with the growth regulator CPPU in improving the vegetative traits of some citrus rootstocks. Journal of Kerbala for Agricultural Sciences, 12(4), 130–149. https://doi.org/10.59658/jkas.v12i4.5211