EFFECT OF ETHREL, CYCOCEL AND PHOSPHORUS ON THE ANATOMICAL STRUCTURE OF MUNG BEAN PLANTS | ||||
| Journal of Plant Production | ||||
| Article 4, Volume 29, Issue 1, January 2004, Page 113-132 PDF (475.71 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2004.238469 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| A. I. EI-Shaarawi,; A. H. Hanafy Ahmed; M. U. EI-Sgai; Elham F. G. | ||||
| Department of Agricultural Botany, Faculty of Agriculture, Cairo University, Egypt | ||||
| Abstract | ||||
| This investigation was carried out during the two seasons of 1999 and 2000 in the Agricultural Experiment and Research Station of Faculty of Agriculture, Cairo University, Giza, Egypt to study the response of the anatomical structure 0 f mung bean to different concentrations of ethrel, cycocel (CCC) and phosphorus. Transections 01 main stem revealed that treatments with ethrel at 200 and 300ppm or with CCC at 1000 and 1500 ppm enhanced the growth of stem in width by increasing the thickness of cortex, vascular tissues and diameter of pith. Most vessels and ray cells of secondary xylem of ethrel treated stems tended to enlarge in radial direction more than in tangential one. Fertilization of mung bean plants with moderate rate of phosphorus (23.25 kg P205i feddan) produced stems with higher amount of conductive tissues and wider xylem vessels than those fertilized with 15.5 or 31 ,00 kg P205i feddan I Transverse sections of leaflet blades at the median region of main stem showed that ethrel increased sizes of midrib, vascular bundle and cells of ground tissue, while the rate of 1000 ppm CCC increased the size of midrib and thickness of blade (palisade and spongy tissues) the rate of 1500 ppm decreased them. Plants received 23.25 kg P20S I feddan produced leaf blades with higher amount of tissues than those fertilized with 15,50 or 31.00 kg P20S I feddan. | ||||
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