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ABDEL-REHIM, G., AHMED, F., SHALABY, G., WALY, A. (1997). EFFECT OF TRANSPLANTING DATE AND PLANTING DEN‌SITY ON BULB YIELD AND QUALITY OF GIZA 20 ONION IN UPPER EGYPT. Egyptian Journal of Agricultural Research, 75(3), 681-695. doi: 10.21608/ejar.1997.410355
GAMAL H. ABDEL-REHIM; FATHY A. AHMED; GAMEL I. SHALABY; ASMAT A. WALY. "EFFECT OF TRANSPLANTING DATE AND PLANTING DEN‌SITY ON BULB YIELD AND QUALITY OF GIZA 20 ONION IN UPPER EGYPT". Egyptian Journal of Agricultural Research, 75, 3, 1997, 681-695. doi: 10.21608/ejar.1997.410355
ABDEL-REHIM, G., AHMED, F., SHALABY, G., WALY, A. (1997). 'EFFECT OF TRANSPLANTING DATE AND PLANTING DEN‌SITY ON BULB YIELD AND QUALITY OF GIZA 20 ONION IN UPPER EGYPT', Egyptian Journal of Agricultural Research, 75(3), pp. 681-695. doi: 10.21608/ejar.1997.410355
ABDEL-REHIM, G., AHMED, F., SHALABY, G., WALY, A. EFFECT OF TRANSPLANTING DATE AND PLANTING DEN‌SITY ON BULB YIELD AND QUALITY OF GIZA 20 ONION IN UPPER EGYPT. Egyptian Journal of Agricultural Research, 1997; 75(3): 681-695. doi: 10.21608/ejar.1997.410355

EFFECT OF TRANSPLANTING DATE AND PLANTING DEN‌SITY ON BULB YIELD AND QUALITY OF GIZA 20 ONION IN UPPER EGYPT

Article 16, Volume 75, Issue 3, September 1997, Page 681-695  XML PDF (2.99 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1997.410355
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Authors
GAMAL H. ABDEL-REHIM1; FATHY A. AHMED1; GAMEL I. SHALABY2; ASMAT A. WALY2
1Faculty Crops Research Institute, Agricultural Research Center, Ministry of Agriculture, Egypt
2Horticulture Department, Faculty of Agricultural, Assiut University, Assiut, Egypt
Abstract
This investigation was caarried out at Shandaweel Experimental Station, Sohag Governorate in 1989/90, 1990/91 and 1991/92 sea‌sons to study the effect of Two transplanting dates and three planting densities (80, 120 and 160 plants/m2) on bulb yield and quality of on‌ion variety Giza 20. Results were as follows : 1.Highest marketable and exportable bulb yields were produced by transplanting 160 plant/m2 in November 15. 2.Percentages of external doubling and bolting were significantly de‌creased by planting on February 5. 3.Percentages of external doubling was significanting 80 plants/m2 on February 5. 5.Average bulb weight was significantly decreased by transplanting 160 pIants/m2 on February 5. 6.Plants matured on April 17 and 27 for Nov. 15 and Feb. 5 transplant‌ing dates. 7.Bulb weight was greatly reduced in late transplanting date (Feb.5).
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