EFFECT OF SOWING DATES AND PLANTING DISTANCES ON NIGELLA SATIVA | ||||
| Egyptian Journal of Agricultural Research | ||||
| Article 22, Volume 76, Issue 3, September 1998, Page 1145-1157 PDF (1.61 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejar.1998.358494 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| SHADIA K. AHMED; EETMAD O. EL-GHAWAS; AHMED F. ALY | ||||
| Horticultural Research Institute, Agricultural Research Centre, Giza, Egypt | ||||
| Abstract | ||||
| Two field trials were conducted during 1996 and 1997 seasons at El Gimeza Research Station Farm, to study the effect of sowing date (Nov. 1st and Nov. 15th), and three planting distances 15,30 and 45cm between plants, on the vegetative growth, nitrogen, phosphorus content of seeds, crude and volatile oil of Nigella saliva . The data showed that the vegetative growth significantly increased at the early sowing date Nov. 1st and at the wider space 45 cm. Seed weight per plant also increased. The data also showed that the seed yield per plot significantly decreased by increasing planting distances. Nitrogen percentage and phosphorus content of seed significantly increased at the early sowing date. Increasing planting distances, the nitrogen percentage significantly increased, while the opposite was observed for phosphorus . The crude oil and oil percentage significantly increased at early sowing date, and by increasing planting distance. | ||||
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