KHALEL, S., MOKHTAR, H., SHAIN, B. (1999). RESPONSE OF "LE-CONTE" PEAR TREES TO SOME DORMANCY BREAKING AGENTS. Egyptian Journal of Agricultural Research, 77(1), 305-315. doi: 10.21608/ejar.1999.326608
SALAH E. B. KHALEL; HAMED M. MOKHTAR; BOTHINA A. SHAIN. "RESPONSE OF "LE-CONTE" PEAR TREES TO SOME DORMANCY BREAKING AGENTS". Egyptian Journal of Agricultural Research, 77, 1, 1999, 305-315. doi: 10.21608/ejar.1999.326608
KHALEL, S., MOKHTAR, H., SHAIN, B. (1999). 'RESPONSE OF "LE-CONTE" PEAR TREES TO SOME DORMANCY BREAKING AGENTS', Egyptian Journal of Agricultural Research, 77(1), pp. 305-315. doi: 10.21608/ejar.1999.326608
KHALEL, S., MOKHTAR, H., SHAIN, B. RESPONSE OF "LE-CONTE" PEAR TREES TO SOME DORMANCY BREAKING AGENTS. Egyptian Journal of Agricultural Research, 1999; 77(1): 305-315. doi: 10.21608/ejar.1999.326608
RESPONSE OF "LE-CONTE" PEAR TREES TO SOME DORMANCY BREAKING AGENTS
Horticulture Research Institute, Agricultural Research Centre, Giza, Egypt
Abstract
Productive "Le-Conte" pear trees at El-Kanater Horticultural Research Station, Egypt, were sprayed at the end of January in 1996 and 1997 seasons with 250 ppm GA3, 0.5% and 1% thiourea, 3% potassium nitrate and 2%, 3% and 4% Dormex. All treatments increased percentage of vegetative and flower bud break. High percentages and significant differences more than the control were obtained as a result of spraying Dormex at 33% and 4% concentrations. This agent also resulted in advancing bud break for about two weeks in comparison with the control. The increase in fruit set percentage was realized due to 3% Dormex, 3% potassium nitrate and 1% thiourea treatments, respectively. However, all treatments increased yield except 0.5% thiourea treatment. Furthermore, all treatments slightly decreased fruit diameter and firmness and increased total soluble solids, while acidity was not significantly affected.
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