Effect of polystimulin growth regulators and scion clones on graft success and subsequent growth in Atlantic cedar (Cedrus atlantica Manetti).

Atlantic cedar (Cedrus atlantica Manetti) was grown, grafting onto the rootstocks of 2 years old Lebanon cedar (Cedrus libani L.). The mixture of polystimulin (PS) growth regulators was used to determine the effects on graft success and subsequent growth during three growing seasons. Scion clones had no effect on grafts success. PS increased the graft success by 20% in comparison to controls. PS-treated grafts burst their buds 18-20 days earlier than control grafts and increased shoot elongation. The PS-treated grafts had 4-5 cm longer shoots than controls at the end of three growing seasons. Thus, this research indicates the significance of PS-application on graft success and subsequent shoot growth on Atlantic cedar. It suggested that use of PS-treated grafts was more profitable than controls. Polystimulins which were used in small doses contributed significantly to the metabolism of Atlantic cedar seedlings after grafting.

[1]  R. Rikala,et al.  Effect of CCC on the morphology and growth potential of containerised silver birch seedlings , 1997, New Forests.

[2]  M. Kutáček.  Physiology and biochemistry of auxins in plants , 2004, Plant Growth Regulation.

[3]  E. Kırdar,et al.  The Effect of Polystimulin-A6 on some Morphological Properties of Beech Seedlings (Fagus orientalis L.) , 2003 .

[4]  S. Nafisi,et al.  Effects of Salt Stress and Synthetic Hormone Polystimuline K on Photosynthetic Activity of Trianea bogotensis Karst , 1998 .

[5]  T. Kozlowski.  2 – Seed Germination and Seedling Growth , 1997 .

[6]  D. Pigott.  Induction of germination of the naturally non-germinating seeds of Tilia petiolaris DC sensu Hooker by treatment with gibberellic acid or kinetin. , 1996 .

[7]  P. Ashokan,et al.  Soil applied paclobutrazol affects leaf water relations and growth of American elm (Ulmus americana L.) seedlings , 1995 .

[8]  J. Barnett,et al.  The Formation of Callus at the Graft Interface in Sitka Spruce , 1993 .

[9]  A. Barnes,et al.  Effects of a triazole, uniconazol, on shoot elongation and root growth in loblolly pine , 1992 .

[10]  H. Kobayashi,et al.  Effect of 2-(3,4-dichlorophenoxy) triethylamine (DCPTA) on the growth and development of blue spruce (Picea pungens Englm. var. glauca). , 1990 .

[11]  D. Seaby,et al.  Enhanced Seedling Root Development in Eight Conifer Species Induced by Naphthalene Acetic Acid , 1990 .

[12]  J. Barnett.  Graft Formation in Sitka Spruce: A Scanning Electron Microscope Study , 1988 .

[13]  D. Nikles,et al.  Seed production in Araucaria cunninghamii—the influence of biological features of the species , 1987 .

[14]  D. Nikles,et al.  Mass propagation of superior families and individual genotypes of some conifers in Queensland. , 1987 .

[15]  R. Bandurski,et al.  Chemistry and Physiology of the Bound Auxins , 1982 .

[16]  H. Lagerstedt.  A New Device for Hot-callusing Graft Unions1 , 1981, HortScience.

[17]  F. Wightman,et al.  METABOLISM OF AUXIN IN HIGHER PLANTS , 1974 .