EFFECT OF ETHEPHON AND NPK FERTILIZATION ON GROWTH, FRUITTING AND CHEMICAL CONSTITUENTS OF CHRISTMAS PEPPER | ||
| Journal of Plant Production | ||
| Article 20, Volume 25, Issue 10, October 2000, Pages 6409-6421 PDF (650.45 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2000.259799 | ||
| Author | ||
| A. A. Helal, | ||
| Institute of Efficient Productivity, Zagazig University, Egypt. | ||
| Abstract | ||
| Two pot experiments were conducted to evaluate the efficacy of foliar spray of ethephon at 0, 100, 200 or 300 ppm, NPK fertilization as Kristallon (13 N: 40 P: 13 K) at F0 (unfertilized control), F1 (1.5 g/l), F2 (3 g/l) and F3 (4.5 g/l), respectively and their interactions for controlling christmas pepper (Capsicum annuum L.) growth and fruiting as a pot plant. All ethephon treatments suppressed plant height, but enhanced branches number/plant and fresh weight of shoot and root/plant and root length. Total and coloured fruits numbers/plant and fruits weight/plant were increased with 100 ppm ethephon treatment. All used ethephon concentrations increased N (%) in leaves, but did not significantly affect P and K percentages. Spraying plants with ethephon at 200 or 300 ppm increased total carbohydrate (%), while 100 ppm decreased it. Kristallon specially at F2 or F3 was more effective in increasing vegetative and root growth, while F3 enhanced fruitting characters. These increases were associated with increasing total N,P,K and total carbohydrate percentages in leaves. Interaction treatments between ethephon and NPK fertilization exhibited synergetic effect for enhancing growth and fruitting characters. The interaction treatment between ethephon at 100 ppm and Kristallon at F3 was most suitable for christmas pepper production as ornamental pot plant. | ||
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