El Laban, H., Fetouh, M., Khater, R., El-Gioushy, S. (2017). Response of Dutch Fennel to Algae Extract Partial Replacement of Mineral NPK under Sinai Conditions. Journal of Plant Production, 8(6), 693-698. doi: 10.21608/jpp.2017.40524
H. M. El Laban; M. I. Fetouh; Rania M. R. Khater; S. H. El-Gioushy. "Response of Dutch Fennel to Algae Extract Partial Replacement of Mineral NPK under Sinai Conditions". Journal of Plant Production, 8, 6, 2017, 693-698. doi: 10.21608/jpp.2017.40524
El Laban, H., Fetouh, M., Khater, R., El-Gioushy, S. (2017). 'Response of Dutch Fennel to Algae Extract Partial Replacement of Mineral NPK under Sinai Conditions', Journal of Plant Production, 8(6), pp. 693-698. doi: 10.21608/jpp.2017.40524
El Laban, H., Fetouh, M., Khater, R., El-Gioushy, S. Response of Dutch Fennel to Algae Extract Partial Replacement of Mineral NPK under Sinai Conditions. Journal of Plant Production, 2017; 8(6): 693-698. doi: 10.21608/jpp.2017.40524
Response of Dutch Fennel to Algae Extract Partial Replacement of Mineral NPK under Sinai Conditions
1Horticulture Department, Faculty of Agriculture, Tanta University, Tanta, Egypt.
2Medicinal and Aromatic Plants Department, Desert Research Center, Cairo, Egypt.
Abstract
Two field trials were carried out during 2014/2015 and 2015/2016 seasons at the El-Maghara Research Station-Desert Research Center., to study the effect of algae extract foliar application as partial replacement forchemical fertilization on vegetative growth, fruits yield, essential oil and its main components as well as chemical constituents of Dutch fennel under Sinai conditions. Treatments were the combination of five fertilization levels (full recommended dose of NPK only, 75, 50, 25% of the recommended NPK plus spraying with algae extract and spraying algae extract only), as treatments were arranged in a randomized complete blocks design with three replications for each treatment. The results showed that, application of T2 (75% of the recommended NPK plus algae extract) increased plant height, number of umbels, fresh and dry weights / plant and maximized the essential oil yield compared to other treatments. However, the least amount of essential oil yield was obtained in plants treated with spraying algae extract only. Application of T2 also increased the concentration of N, P and K in plant tissues, Meanwhile, T5(spraying with only algae extract) led to the lowest values compared other treatments in both seasons. As general the main chemical constituents of Dutch fennel essential oil were trans-anethole, estragole, fenchone, limonene, alpha-pinene.
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