EFFECT OF DIFFERENT DOSES OF AMMONIUM SULPHATE ON THE GROWTH AND CHEMICAL COMPOSITION OF Coffea arabica SEEDLINGS (ODEINI) | ||
| Journal of Plant Production | ||
| Article 21, Volume 29, Issue 10, October 2004, Pages 5791-5800 PDF (2.56 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2004.238862 | ||
| Authors | ||
| M. S. Hanafy,; H. O. Elward | ||
| Horticulture and Forests Department, Fac. of Agric. Sana'a Univ., | ||
| Abstract | ||
| An experiment was carried out at the green house of horticulture and Forests Department, Faculty of Agriculture, Sana'a University during two successive seasons 2001 and 2002. The aim of this experiment was to study the effect of different doses of ammonium sulfate fertilizer on the growth and chemical composition of Coffea arabica seedlings (Odeini). The results can summarize as follows: The highest values of number of leaves , leaf area , fresh weight of leaves per plant, dry weight of leaves per plant, fresh and dry weight of stem and branches, fresh and dry weight of roots was produced from the application of ammonium sulphate fertilizer at the rate of 0.125 gm I plant in both seasons. The highest values of plant height resulted from using ammonium sulphate fertilizer at the rate of 0.250 gml plant in the first season and 1.000 gml plant in the second season. The highest values of number of branches per plant produced from using ammonium sulphate fertilizer at the rate of 0.500 gm I plant in the two seasons. The highest values of stem diameter resulted from using ammonium sulphate at the rate of 0.250 gm/plant in the first season and 0.500 gm I plant in the second season. The highest value of root length produced from application of ammonium sulphate at the rate of 0.125 gml plant in the first season, 0.250 and 0.500 gm per plant in the second season. The highest value of the nitrogen content in the leaves obtained from application of ammonium sulphate fertilizer at the rate of 1.000 gm I plant in the two seasons. The highest value of total carbohydrates content in the leaves produced from using ammonium sulphate at the rate of 0.250 gm I plant in the two seasons. | ||
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