EFFECT OF GIBBERILlIC ACID AND A MIXTURE OF MICRONUTRIENTS (NUTARM1NE) ON EARLINESS, HEAD YIELD, AND PRE AND POSTHARVEST QUALITY OF GLOBE ARTICHOKE (Cynara sco/ymus L.) | ||||
| Journal of Plant Production | ||||
| Article 13, Volume 28, Issue 3, March 2003, Page 1949-1967 PDF (2.36 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.242494 | ||||
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| Authors | ||||
| R. E. El-Bassiouny,1; M. A. Hassan2 | ||||
| 1Vegetable Handling Department, Horticultural Research I stitu'e, Agricultural Research Center | ||||
| 2Deparment of Horticulture, faculty or Agriculture, Suez Canal University | ||||
| Abstract | ||||
| Globe artichoke plants were grown perennially at Kaha Experimental Station during the two successive seasons of 200012001 and 200112002. to ~Iudy the influence of GA3 at 50. 100. 150. and 200 ppm. Nutarmine (8 mixture of microelemen\s) and their combination on plant growth. earliness. head yield. and chemical constituents of head receptacles. The effect of packaging method on s\orabilily of neaes was also investigated USing nower heads produced by plants sprayed with the combination of 150 ppm GAl and Nutarmine. Data revealed that number of leaves per plant significantly increased only by Nutarrrune treatmenL Number of offshools per plant significantly increased by GAl at 150 ppm. and Nutarmlne, each alone or when combined together. GAl. Nut rrnine or their combination did not affect dry weight of leaves per plant. GAl at 200 ppm was slgni1icanlly the best for induction of blooming earliness. Highest significant incraase in percentage early yield was achieved by G 3 at 150 ppm combined with Nut9rmine. Percentage late yield increased signlfi antly by Nutarmine treatment only. In early yield, GAl at 150 ppm combined wl1h Nutarmine resulted 'in I e highest significant increase in number of nower heads per plant. average head eight and total weight of heads per plant, while the combination of GA3 at 200 ppm wrth Nutarmine resulted in the highest Significant increase in receptacle weight. GAl levels. Nutarmine or their combination did not affect lIower head diameter or receptacle diameter. In late yield. The highest significant increase in number of !lower heads per plant. average head weight. weight of flower heads per plant. average receptacle weight were resulted by the combination of GA3 at 150 ppm with Nularmine. However. none of GAJ levels, Nutarmine or their combinations affect flower head diameter or receptacle diameter. All tested treatments. except GAl at 200 ppm. significantly increased reducing sugars of receptacle. while non-reducing sugars and inuline contents were not affected by any treatment. The Increase in GA3 concentration, either alone or when combined with Nutarrnme, was accompanied with increament in recep\~le phenol contents. All treatments enhanced the accumulation of GAs. and there was a gradual increase in GA3 contents of the receptacle, associated with the increase in GAJ concentration, either when GAJ was alone or combined with Nula mine. All delermined micro-elements, i.e., Mn, Fe, Cu. B, and Zn. Significantly increased by the presence of Nutarmine alone or when combined with GAs In the slorability study. results indicated that prolonging storage period re ulted in a remarkable 'Increase in percentage weighl loss. decay. fiber con ents and discoloration of cut ends, while it caused a reduction in the values of visual quality | ||||
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