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SUMMARYThis work was conducted in faculty of agriculture Zagazig university During the two seasons of (2002, 2003) and included two parts.Part IThis part was conducted to raise Polianthes tuberosa L. plant by nutrient film technique the tested treatments for the nutrient solution were :1- Hogland A nutrient (Lorenz and Maynard, 1980)2- Hogland B nutrient (Lorenz and Maynard, 1980)3- D. C. F. F. I (Deduced commercial fertilizer formula)4- D. C. F. F. II (Deduced commercial fertilizer formula)5- 0.5 gm / l. singeral (Compound commercial fertilizer formula)6- 1 gm / l. singeral (Compound commercial fertilizer formula)The type of used water for preparing the nutrient solution was distilled water or tap water was tested for Hogland A or B solution where the other nutrient solutions were prepared with tap water. The important results could be summarize as following :1- using tap water of E. C. 1.2 ds/m , total soluble salts 793.6 ppm and containing 8.09 ppm sodium proved its efficiency in preparing Hogland solutions for growing tuperose plants until flowering comparing to distilled water.2- Hogland solution B which containing ammonium and nitrate nitrogen forms proved to be better than that containing nitrate form only.3- The deduced commercial fertilizer formula in preparing nutrient solution with tap water resulted in enhancing effect than Hogland solution for the vegetative growth and flowering characters.4- Using singeral at 1 gm /l. (complete commercial fertilizer prepared with tap water resulted in similar findings to Hogland B or deduced commercial fertilizer for vegetative and flowering characteristics .5- Using Hogland B, deduced commercial fertilizer or singeral at 1 gm/l. increased the percentages of NPK and total carbohydrates in the leaves.6- Using the deduced commercial fertilizer formula prepared with tap water decrease the costs of production taking into consideration that this technique produced high yields such as 100 spikes/1.0 m2 .Part IIIn this part seven solid media formula in addition to NPK fertilization were tested the seven solid media formula were1- Sand only.2- Sand : peat : saw dust (1 : 1 : 1) (V : V : V).3- Sand : rice straw (1 : 1) (V : V).4- Sand : saw dust (1 : 1) (V : V).5- Peat : vermiculite (1 : 1) (V : V).6- Sand : clay (1 : 1) (V : V).7- Sand : Peat (1 : 1) (V : V).The NPK fertilization treatments were :N1 P1 K1 (2.1 gm ammonium nitrate, 3 gm super phosphate and 1.5 gm potassium sulfate).N2 P2 K2 (4.2 gm ammonium nitrate, 6 gm super phosphate and 3 gm potassium sulfate).N3 P3 K3 (8.4 gm ammonium nitrate, 12 gm super phosphate and 6 gm potassium sulfate).N4 P4 K4 (16.8 gm ammonium nitrate, 24 gm super phosphate and 12 gm potassium sulfate).The important results could be summarized as following:A – Effect of media type1- All used media produced 100 % sprouting percentage, while the faster media for sprouting (13.34 – 14.29 days) were, 1 sand : 1 peat : 1 saw dust, 1 sand : 1 saw dust and 1 peat : 1 vermiculite. The intermediate media were 1 sand : 1 rice straw , 1 sand : 1 clay and 1 sand : 1 peat (17.08 – 17.8 days). The latest medium was sand only (25.23 days).2- The highest leaves number/plant was resulted from 1 sand : 1 peat or 1 sand : 1 peat : 1 saw dust media, where the least number was resulted from sand medium or 1 sand : 1 clay media3- The effective media in increasing leaves area/plant was 1 sand : 1 peat : 1 saw dust.4- the highest fresh and dry weight of leaves/plant was obtained from 1 sand : 1 peat media. In the second order descendingly came the media 1 sand : 1 rice straw, 1 sand : 1 saw dust and 1 peat : 1 vermiculite, where the least one was 1 sand : 1 clay medium.5- The highest fresh and dry weight of bulbs was resulted from 1 sand : 1 peat : 1 saw dust media.6- All the used media resulted from similar values for the number of bulblets/clumb except the least one which was 1 sand : 1 clay medium.7- The highest root length was obtained from the 1 sand : 1 peat : 1 saw dust medium followed by 1 sand : 1 peat, then 1 peat : 1 vermiculite while the lowest one was 1 sand : 1 clay medium.8- The highest fresh and dry weight of root resulted from 1 sand : 1 peat : 1 saw dust medium where the lowest weight was resulted from sand medium or 1 sand : 1 clay medium.9- The highest fresh, dry weight of stalk and flower stalk length was obtained from 1 sand : 1 peat : 1 saw dust medium or 1 sand : 1 rice straw medium while the least weights and flower stalk length was obtained from 1 sand : 1 clay medium.10- All used media (resulted in high florets number/spike) except sand or 1 sand : 1 clay media which resulted in the least number.11- The media of sand or 1 sand : 1 rice straw delayed flower stalk emergence and flowering time of harvesting where the other media caused earliness in both characters.12- The least total nitrogen percentage in the leaves was obtained from sand, 1 sand : 1 clay or 1 sand : 1 peat media while the other media resulted in high total nitrogen percentage. While, in the bulbs there was no significant differences between all used media.13- The highest phosphorus percentage in leaves was resulted from 1 sand : 1 saw dust, 1 peat : 1 vermiculite or 1 sand : 1 clay media while, in bulbs there was no significant differences between all used media.14- The highest potassium percentage in the leaves was obtained from 1 peat : 1 vermiculite, 1 sand : 1 clay or 1 sand : 1 peat media where all media were similar for potassium percentage in bulbs with the exception of 1 sand : 1 peat which decreased potassium percentage.15- All used media showed similar insignificant effect on total carbohydrate in leaves, while in bulbs significant increase was recorded from 1 sand : 1 rice straw and 1 sand : 1 peat media. The percentages of total carbohydrates in bulbs was nearly double of that of leaves.16- The highest chlorophyll a content was obtained from 1 sand : 1 peat : 1 saw dust media. The least content was recorded from sand or 1 sand : 1 saw dust media while, 1 sand : 1 peat : 1 saw dust medium increased chlorophyll b content. The carotenoids were in the highest content in 1 peat : 1 vermiculite media.B- Effect of fertilization1- Increasing fertilization rate to N3P3K3 (8.4 gm ammonium nitrate, 12 gm super phosphate and 6 gm potassium sulfate/4 plants) inpot showed significant increase in leaves number, leaves area and leaves weight/ plant. The highest fertilization level N4P4K4 (16.8 gm ammonium nitrate, 24 gm super phosphate and 12 gm potassium sulphate/4 plants) inpot didn’t show promising increase than N3P3K3 level .2- The highest fresh and dry weight of bulbs and bulblet number/clumb was resulted from N3P3K3 treatment. More significant increase in bulb weight was resulted from N4P4K4 treatment.3- Gradual significant increase in root length and weight was obtained and NPK level increased to N4P4K4 treatment.4- Increasing fertilization rate to N4P4K4 significantly increased fresh and dry weight of flower stalk, flower stalk length, while florets number/stalk showed significant increase up to N3P3K3 level only.5- The earliness in flower stalk emergence and harvesting was obtained as fertilization level increased to N4P4K4 level.6- A significant increase in total nitrogen, phosphorus, potassium and total carbohydrate percentages as NPK level increased to N4P4K4 treatment.7- A significant increase in chlorophyll a, b and carotenoids was recorded as NPK level increased to N4P4K4 treatment.C- The interaction effect1- The highest leaves number/plant was obtained from 1 sand : 1 peat or 1 sand : 1 vermiculite media combined with N3P3K3 level.2- The highest leaves area/plant was resulted from 1 sand : 1 peat or 1 sand : 1 rice straw medium combined with N3P3K3 treatment.3- The highest fresh and dry weight of leaves/plant was obtained from 1 peat : 1 vermiculite or 1 sand : 1 peat media combined with N3P3K3 treatment.4- The highest fresh and dry weight of bulb/clumb was obtained from 1 sand : 1 peat : 1 saw dust media combined with N3P3K3 treatment. Also the highest number of bulblet/clumb was obtained from the same combination 1 sand : 1 rice straw combined with N3P3K3 treatment.5- The highest root length and weight was obtained from 1 sand : 1 peat : 1 saw dust medium or 1 sand : 1 saw dust medium combined with N3P3K3 treatment.6- The highest fresh and dry weight of flower stalk, flower stalk length, and florets number/stalk was obtained from 1 sand : 1 peat : 1 saw dust or 1 sand : 1 rice straw media combined with N3P3K3 treatment.7- The combination between 1 sand : 1 rice straw medium and N3P3K3 treatment was effective in flowering earliness and harvesting.8- All used media except sand or 1 sand : 1 clay media when combined with N3P3K3 treatment enhanced total nitrogen, phosphorus, potassium, total carbohydrate percentages and pigments content in the leaves and bulbs.CONCLUSIONThe main conclusion of this work indicate that 1 sand : 1 rice straw or 1 sand : 1 saw dust media are available and cheap media for producing tuperose plant inpots and they must fertilize with (8.4 gm ammonium nitrate, 12 gm super phosphate and 6 gm potassium sulfate) to produce good flower stalks. Also NFT technique with the deduced commercial fertilizer formula prepared with tap water was apromising technique but the productivity and the costs of each system will be the judge as the productivity of the cheap solid media will be 36 spikes/ m2 against 100 spikes/m2 for NFT technique.REFERENCESAmarjeet Singh, N. R. Godara and A. Singh.(1995). Studies on the nutritional requirement of tuberose (Polianthes tuberosa L.) cv. single during growth. Haryana Agriculture University Journal Of Research, 25:4, 171-174; 8 ref.Amarjeet Singh, N. R. Godara, Ashok Kumar, A. Singh, and A. Kumar. (1996). Effect of NPK on flowering and flower quality of tuberose (Polianthes tuberosa L.) cv. single. Haryana Agriculture University Journal Of Research, 26: 1,43-94; 10 ref.Arafa, N. M., O. F. Badawy and A. Nbih. (2002). Effect of growing media and soil additions on growth, flowering, bulb productivity and chemical constituents of Polianthes tuperosa L. Egypt. J. Appl. Sci; 17 (4) 2002.Badawy, O. E., S. H. El-Hanafy and A. Nabih. (2001). Effect of some factors on growth, flowering and bulbs productivity of Ornithogalum thyrsoides, Jacq. Egypt. J. Appl. Sci; 16 (8) 219-244.Badawy, O. E., S. H. El-Hanafy and A. Nabih. (2001). Effect of storage temperature and growing media on growth, flowering and corms productivity of (Freesia refracta) cv. Aurora. Egypt. J. Appl. Sci; 16 (8) 245-270.Bankar, G. J. and A. Mukhopadhyay, (1990). Effect of NPK on growth
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