Saadawy,, F., Ahmed, S., Gomaa, S. (2005). PROPHYLACTIC MEASURES FOR THE IMPROVMENT OF FLOWER PRODUCTION IN Jesminum sambac ·L. PLANTS. Journal of Plant Production, 30(12), 7995-8011. doi: 10.21608/jpp.2005.237944
F. M. Saadawy,; Samira S. Ahmed; S. A. A. Gomaa. "PROPHYLACTIC MEASURES FOR THE IMPROVMENT OF FLOWER PRODUCTION IN Jesminum sambac ·L. PLANTS". Journal of Plant Production, 30, 12, 2005, 7995-8011. doi: 10.21608/jpp.2005.237944
Saadawy,, F., Ahmed, S., Gomaa, S. (2005). 'PROPHYLACTIC MEASURES FOR THE IMPROVMENT OF FLOWER PRODUCTION IN Jesminum sambac ·L. PLANTS', Journal of Plant Production, 30(12), pp. 7995-8011. doi: 10.21608/jpp.2005.237944
Saadawy,, F., Ahmed, S., Gomaa, S. PROPHYLACTIC MEASURES FOR THE IMPROVMENT OF FLOWER PRODUCTION IN Jesminum sambac ·L. PLANTS. Journal of Plant Production, 2005; 30(12): 7995-8011. doi: 10.21608/jpp.2005.237944
PROPHYLACTIC MEASURES FOR THE IMPROVMENT OF FLOWER PRODUCTION IN Jesminum sambac ·L. PLANTS
Ornamental Plant Research Department, Horticulture Research Institute, Agriculture Research Center, Egypt.
Abstract
One year old transplants of Arabian jasmine (Jasminum sambac L.) with a height of 15-20 cm were sprayed monthly with one of the follOWing solutions:
1- A fungicide: Topsin M (thiophanate-methyl) at 2 gil.
2- An insecticide: Rogor (Dimethoate) at 2 mill.
3- A nutritive solution: (MS basal salts described by Murashige and Skoog. 1962) at
full strength. .
4- Methanol (methyl alcohol) at 10% aqueous solution.
5- A combined treatment consisting of all the above-mentioned treatments. 6- A spray of water only for the control treatment.
The consistent trends along the two years of this study could be concluded in the following:
"The combined treatment" resulted in the highest values of flower number, plant height, number of leaves, branch number, and contents of carbohydrate, N, P and K. However, some of these highest values were not confined to "the combined treatment" only. The methanol treatment was responsible also for the highest records of flower number, flower fresh weight, plant height, number of leaves, chlorophyll a, b and carbohydrate contents. Highest value of carbohydrate content was a result of either one of the later two treatments or the insecticide treatment. The nutritive solution treatment resulted also in the highest N content. The control treatment was responsible for the lowest values of flower number, flower fresh weight, plant height, number of leaves, branch number, chlorophyll a, b and contents of carbohydrate, N, P and K. On the other hand, flower neck diameter and leaf content of carotene were not significantly affected by any of the treatments used.
It is recommended to pay more attention to Arabian jasmine (Jasminum sambac) plants through routine prophylactic programs of nutrition and pest control in order to get better vegetative growth and flowering of these plants of great importance in landscape as well as for export of concrete oil for perfumery purposes.
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