EFFECT OF PLANTING DATE AND DIFFERENT LEVELS OF INDOLE BUTYRIC ACID ON ROOTING OF Ficus retusa CV. Hawaii CUTTINGS. | ||||
| Journal of Plant Production | ||||
| Article 11, Volume 27, Issue 2, February 2002, Page 1137-1150 PDF (4.52 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2002.253323 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. S. Shehata,1; A. EI-Tantawy2; R. S. Darweish3 | ||||
| 1Forest. Res. Dep. Hort. Res. Inst. Agric. Res. Center. | ||||
| 2Hort. Ornamental Plant, Faculty of Agric, Cairo Univ. | ||||
| 3Ornamental Plant Department, Hort. Res. Inst. Agric. Res. Center | ||||
| Abstract | ||||
| This trial was carried out during two successive seasons of 1997-1998 and 1998-1999 at Zohria Garden Ministry of Agriculture. Terminal cuttings of Ficus retusa cv. Hawaii including 5 leaves and 15 ern in length have taken at monthly interval from August to July and dipped in ISA for 10 seconds at different concentrations of 1000, 2000 and 3000 ppm as well as the control which did not receive any concentration of ISA and planted immediately in plastic pots 15 cm in diameter in green house and subjected under intermittent mist conditions. The obtained results indicated that cuttings cultivated from May to July failed to form any roots while the other cuttings planting dates differed significantly in their effect on rooting ability, since the initial roots formation enhanced in the cuttings cultivated in March subsequently, the successful cuttings percentages increased to 'maximum ranking 75.03% followed. by February planting 73.8 %while August planting produced the minimum 36.9%,thereafter rooting percentages progressively increased linearly from August to March regardless the effect of I SA. Cuttings treated with ISA ameliorated the successful 'of rooting compared with untreated in particular the level of 2000 ppm which increased the rooting percentage from 52% in control up to 70.3 %, whereas both of 1000 and 3000 ppm produced 65.4 and 61.9% respectively regardless the effect of planting dates. The cuttings cultivated in March and treated with 2000 ppm ISA improved roots number, stem height" fresh and dry weight of roots while 3000ppm produced the longest roots where the mean values of those parameters were maximized . On the other hand the cuttings cultivated in December produced the minimum values. The superior growth parameter exhibited in March, February and August planting respectively and the reduction of growth was in slope descending in the cuttings planted from August to December. The cutting planted in March induced the highest mean values in total phenols, Indole compounds in above roots of basal cutting portion and total carbohydrates in leaves, followed by February planting while the least values accompanied August planting. There is no noticeable effect on total phenol and Indole content in above roots of cutting basal portion due to ISA treatments, while the effect was more pronounced on total carbohydrates in leaves specially the level of 2000 ppm, which increased it to maximum values compared with control. Therefore it can be recommended that March month is the best planting date followed by February and it should not plant the cuttings of Ficus retusa cv. Hawaii through summer months (May, J.une, July) where the cuttings failed entirely to form any initial roots even though they were treated with ISA | ||||
| Keywords | ||||
| Planting dates; Terminal cuttings; Hardwood cuttings; Variegated leaves | ||||
|
Statistics Article View: 37 PDF Download: 165 |
||||
