EFFECT OF SUCROSE PULSING, HARVESTING STAGE AND PRESERVATIVE SOLUTIONS ON POST HARVEST LIFE OF CUT-TUBEROSE (Polianthes tuberosa L. ) SPIKES. | ||||
| Journal of Plant Production | ||||
| Article 18, Volume 30, Issue 7, July 2005, Page 4097-4110 PDF (1.97 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2005.237451 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Ola A. EI-Shennawy, | ||||
| Dept. of Floriculture, Ornamental Horticulture and Garden Design, Faculty of Agriculture, Alexandria University, Alexandria, Egypt. | ||||
| Abstract | ||||
| The effect of sucrose pulsing. three harvesting stage and preservative solutions on the post harvest of cut- tuberose spikes were investigated twice in September of 2001 and 2002. Vase life was assessed daily under laboratory conditions 2so±2 cc. 65 ± 5% relative humidity and 12 h light under cool white fluorescent lamps (500 ± 100 lux). The maximum open florets % was recorded at (300 ppm 8HOC +3 % sucrose) after pulse pre-treatment in 20 % sucrose solution for 24 h in the third harvest stage (frve open florets) in the second and first seasons respectively. The minimum open florets % was recorded in the control treatment of un-pulsed pre- treatment in the first harvest stage (1 open floret) in the first and second seasons respectively. The maximum shattered florets % was recorded in Ihe treatment of (300 ppm SHOC "'3 % sucrose + 1% clorox) of un-putsed pre- treatment in the first harvest stage (1 open floret) in the first and second seasons respectively, followed by the control treatment of un-pulsed pre- treatment in the first harvest stage (1 open floret) in the second and first seasons respectively. The minimum shattered florets % was recorded in the treatment of (300 ppm 8HOC +3 % sucrose) followed by 3 % sucrose of the pulsed pre- treatment in the third harvest stage (5 open florets) in the second season. The maximum vase life (14.3, 13.8 days) were recorded in the treatments of (300 ppm SHaG +3 % sucrose + 1% ciorox) of the pulsed pre- treatment in the third harvest stage (5 open Oorets) in the second and first seasons respectively, followed by the treatment of (300 ppm 8HOC +3 % sucrose), closely followed by 3 % sucrose of the pulsed pre- treatment in the third harvest stage (5 open florets) in the second season The minimum vase life was noted in the control treatment of un-pulsed ore- treatment in the first harvest stage (1 open floret) in the first and second seasons respectively. Solution uptake of tuberose spikes were improved by all treatments. however, the differences among treatments were not significant. It is suggested that the spikes should be cut in the third harvest stage (5 open florets), ore- treated with 20% sucrose for 24 h and followed by a treatment of 300 ppm 8HOC + 3 % sucrose + 1% Ciorox. These conditions can improve tuberose vase life and floret opening through improving the water balance. | ||||
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