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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Apr 2007, 28 (2)                                     Back


paper

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

Erol Kirdar and Murat Ertekin

Department of Forest Engineering, Faculty of Forestry, Sylviculture Science,

Zongulolak Karaelmas University, Bartin-74100, Turkey

(Received: October 10, 2005 ; Revised received: February 20, 2006 ; Accepted: March 20, 2006)

Abstracts: 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 determinethe 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.

Key words:Cedrus atlantica, Plant growth regulator, Grafting, Growth, Rootstock, Scion

 

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