RESPONSE OF CRINUM PLANTS TO FOLIAR APPLICATION WITH GA3 AND CALCIUM. | ||||
| Journal of Plant Production | ||||
| Article 5, Volume 34, Issue 6, June 2009, Page 6555-6565 PDF (571.28 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2009.118400 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Magda M. Hassanein* | ||||
| Hort. Res. Inst., Agric., Res. Center, Giza, Egypt. | ||||
| Abstract | ||||
| Two field experiments were carried out during the two successive seasons of 2006 / 2007 and 2007 / 2008 to investigate the effect of GA3 (0, 50, 100 and 150 ppm) and calcium (0, 50, 100 and 150 ppm) as well as their interaction on growth, flowering, chemical composition and bulb production of Crinum asiaticum plants. All concentrations of GA3 or calcium increased leaves parameters (number, width, length and dry weight of leaves / plant), floret parameters (number, diameter and fresh weight of florets / spike) and spike parameters (number, length, diameter and spike fresh weight), as well as, total carbohydrates and number and fresh weight of bulbs / plant. All concentrations of GA3 or calcium decreased the number of days to full blooming and extending the duration of flower on plant and flower vase life. Morever, GA3 at all concentrations decreased whereas calcium concentrations increased the total chlorophylls contents in the leaves. All combinations between GA3 and calcium concentrations had a positive effect on growth, flowering and bulb production. And the treatment GA3× calcium at 150 ppm showed the most beneficial effect in this respect. | ||||
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