AJPS  Vol.5 No.13 , June 2014
Crude Extracts of Senna alata (L.) Roxb. Mimics Plant Growth Hormones in Promotion of Vegetative and Reproductive Growth in Celosia argentea L.
ABSTRACT

The efficacy of crude extracts of Senna alata in the improvement of vegetative and reproductive growth in Celosia aregentea was investigated. Fresh leaves of S. alata were blended with a homogenizer in 1 litre of distilled water. The resultant green paste was filtered under suction. Different concentrations (75%, 50%, 40%, 30%, 25%, 12%, 10%, and 5%) were prepared from the 100% crude extract. Seeds of C. argentea were presoaked in these different concentrations including a control (0%) and planted out after 24 hours. Results obtained showed that seedling height, leaf area, dry weight and leaf area ratio were promoted and enhanced by presoaking seeds in the extract. At the end of the experimental period (six weeks), seedling height in 75% and 100% treatments were 109 ± 16.12 cm and 117 ± 19.32 cm, leaf area 128 ± 17.91 cm2 and 125 ± 18.12 cm2, dry weight 7.48 kg and 7.0 kg respectively. Seedlings raised from seeds presoaked in water (control) however, flowered earlier (8 weeks) than the treatments (10 weeks in 75% and 100%). Presoaking seeds of C. argentea in crude extracts of S. alata before planting is recommended for optimum production of the leafy vegetable. The procedure is cheap and easily implementable by resource-poor farmers who are the main growers of C. argentea.


Cite this paper
Agbagwa, I. (2014) Crude Extracts of Senna alata (L.) Roxb. Mimics Plant Growth Hormones in Promotion of Vegetative and Reproductive Growth in Celosia argentea L.. American Journal of Plant Sciences, 5, 1918-1925. doi: 10.4236/ajps.2014.513205.
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