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EFFECT OF CRUDE EXTRACT OF MAIZE SEEDS AND COBS ON SOME VEGETATIVE AND ROOT GROWTH CHARACTERS OF TROYER CITRANGE (Poncirus trifoliata L.Raf X Citrus sinensis L. Osbeck) ROOTSTOCK IN VITRO | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 12, Issue 1, 2007, Pages 0-0 | ||
| Authors | ||
| S. M. Bader; M. A. Al-Shemery | ||
| Abstract | ||
| This study includes the addition of aqueous extracts of maize seeds in different stages (milky, doughy, mature) and cobs of milky stage to the nutrient media as a source of natural cytokinin (zeatin)and auxin (IAA). Shoot tips and double node cuttings were used as explants. Results showed a significant superurity of shoot tips against the cuttings in most studied characters (shoots length, number of leaves, number and length of roots and the percentage of callus formation). Also the use of BA (2mg/L) in the citrus multiplication media was more efficient than the natural cytokinin (zeatin) which is possibly existed in the extraction of the milky stage seeds of maize. The extraction of fully mature seeds was significantly differ in most of studied characters when was added at 500cm³/L. The use of milky stage cobs extraction stimulated some characters such as (shoots length, roots length, leaves number and roots number ) at 30cm³/L. In addition there was an effect in the percentage of callus formation at low concentrations of that extract. | ||
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