Portal de Periódicos da CAPES

Propagation of Pistacia chinensis by Mound Layering

1995; Horticultural Research Institute; Volume: 13; Issue: 2 Linguagem: Inglês

10.24266/0738-2898-13.2.109

2573-5586

Diane E. Dunn, Janet C. Cole,

Research in Cotton Cultivation

Abstract Chinese pistache (Pistacia chinensis, Bunge.) is a commonly recommended landscape shade tree in the nursery and landscape industry. Currently, Chinese pistache trees are propagated commercially from seed, which results in highly variable branch habit and fall color. Mature Chinese pistache, like other Pistacia have proven difficult to root, graft, or bud successfully. This study was initiated to investigate the potential of mound layering as an alternative vegetative propagation method for producing genetically identical clones of superior mature Chinese pistache trees. Results from a greenhouse pre-trial in which trees were cut at two different heights and at three different morphological stages showed that significantly more shoots were produced when stock plants were cut 5 cm (2 in) above the soil line compared to 1 cm (0.4 in), and when trees completely broke dormancy before cutting. Field trials during two consecutive years evaluated four treatments consisting of 1) wound; 2) 17,500 ppm IBA; 3) wound and 17,500 ppm IBA 4) no wound, no IBA. In 1993, 77% and in 1994, 75%of wounded shoots treated with IBA produced roots.