This investigation was carried out during the two successive seasons of 2006 and 2007 at the Agricultural Experimental and Research Station, Faculty of Agriculture, Cairo University Giza, Egypt. to study the effect of IAA and BA on vegetative growth and yield of soybean plant. Three concentrations, 50,100 and 200 ppm. were used of each growth regulator. The results revealed that IAA or BA increased main stem length, number of branches and leaves per plant, dry weight of leaves, stems and pods per plant, number of mature pods and seeds per plant and seed yield per plant. Number of main stem internodes, total leaf area per plant and weight of 100 seeds were not affected by treatment.

Certain key experiments on the clonal propagation of pecan by stem and root cuttings are described. Juvenile cuttings of pecan cv. `Stuart' produced more roots and a larger percentage of rooted cuttings than adult cuttings when treated with 1% solution of (IBA) in Feb. and Aug. Successful propagation from `Stuart' stem cuttings was high from July to September. This study also fails to support the hypothesis that auxins are necessary to increase the level of rooting by pecan hardwood cuttings. Pecans were propagated using root cutting techniques and successfully transplanted to containers. Root cutting sections collected in either March or August from two-year-old `Curtis' seedling, responded yielding high rooting success and survival. The data also provides evidence that IBA could enhance the production of roots of root cuttings but BA (Benzyl Adenrine) offers no benefit. Girdling the sprout shoots from root cuttings with the use of IBA doubled the percentage of shoots producing roots and increasing root length.

At present, a clonal rootstock for pecan is unavailable. Studies were initiated to evaluate the effectiveness of air-layering, stooling and trench layering techniques for propagation and field survival of clonal pecan rootstocks and to obtain an estimation of the relative responsiveness of genotypes. These studies demonstrated that clonal rootstocks and scion materials can be produced for pecan genotypes by either of the air-layering, stooling, or trench layering techniques. Survival and health of clones were generally best from ramets produced by the stooling and trench layering methods if girdling plus IBA is used to induce rooting. Of the three methods evaluated, stooling would appear to be the most practical method of producing rootstock materials since it produces the most healthy clones, although its yield per tree is probably a little less than that of trench-layering. The influence of the `girdling plus IBA' treatment on overall physiology of the rooted shoot appears to be relatively minor when compared to that of the `check'.