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Journal of Agronomy
  Year: 2012 | Volume: 11 | Issue: 2 | Page No.: 60-64
DOI: 10.3923/ja.2012.60.64
 
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Foliar Spray of Humic Substances on Seedling Production of Watermelon cv. Crimson Sweet

R.R.S. Silva-Matos, I.H.L. Cavalcante, G.B.S. Junior, F.G. Albano, M.S. Cunha and M.Z. Beckmann-Cavalcante

Abstract:
The objective of this research was to study the effect of humic substances on seedling production of watermelon cv. Crimson Sweet. A completed randomized blocks design with five treatments (humic substances doses) was adopted, with five repetitions of 10 seedlings each, with a total of 250 seedlings. The following humic substances doses were studied 0 (unsprayed), 7.5, 15, 22.5 and 30 mL m-2 (0, 0.40, 0.80, 1.19 and 1.59 mL seedling-1), were sprayed at 10, 15 and 20 days after sowing. At the end of the experiment (25 days after sowing) the following variables were recorded: plant height; stem diameter; (3) dry weight of shoots and roots; root length; root volume; and leaf chlorophyll. Our studies demonstrate that: (1) foliar spray of humic substances enhances aerial part and root system of watermelon seedlings; (2) 22.5 mL m-2 dose of humic substances for foliar spray could be recommended for production of watermelon seedlings.
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How to cite this article:

R.R.S. Silva-Matos, I.H.L. Cavalcante, G.B.S. Junior, F.G. Albano, M.S. Cunha and M.Z. Beckmann-Cavalcante, 2012. Foliar Spray of Humic Substances on Seedling Production of Watermelon cv. Crimson Sweet. Journal of Agronomy, 11: 60-64.

DOI: 10.3923/ja.2012.60.64

URL: https://scialert.net/abstract/?doi=ja.2012.60.64

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