Influence of grafting methods on the survival and morphometric parameters of grafted plants the genus <i>Pinus</i> L.

Abstract

   The article presents the data on the survival and morphometric parameters of annual grafted plants using the grafting by a double-side cut on the handle leaving a bark strip on the rootstock into a split of a semi-lignified shoot and using the grafting by cutting during the growing season into a split of a green shoot. Pinus sylvestris “Yellowish”, “Carolina”, “Elegant” that were obtained by breeding in the Central Botanical Garden of the National Academy of Sciences of Belarus and Pinus mugo “Carstens Wintergold” were used as model objects. It has been established that the method of double-sided cut on a scion for grafting decorative forms of Pinus sylvestris L. is the most effective. This method provides a survival from 86.4 to 100 % and optimal crown development. Grafting into a split of a semi-lignified shoot is recommended when using lignified cuttings after long-term storage. This approach provides a survival of about 60 %. Grafting into a split of the green shoot can be used when harvesting cuttings during the growing season and provides a survival rate of 8.7 to 72.7 %.