EFFECTS OF CUTTING ORIGIN AND EXOGENOUS HORMONE ON ROOTING OF Camellia kirinoi
TRAN DUC MANH
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
MAI THI LINH
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
DAO TRUNG DUC
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NGUYEN TOAN THANG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
DANG VAN THUYET
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
PHUNG DINH TRUNG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NINH VIET KHUONG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NGUYEN THI THU PHUONG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
LY THI THANH HUYEN
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NGUYEN VAN TUAN
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
DANG THI HAI HA
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
TRAN CAO NGUYEN
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
TRAN HOANG QUY
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
PHAM DINH SAM
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
VU TIEN LAM
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NGUYEN HUU THINH
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
HOANG THANH SON
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
TRINH NGOC BON
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
HO TRUNG LUONG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
TRAN ANH HAI
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
DUONG QUANG TRUNG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NGUYEN QUANG HUNG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
TRAN HONG VAN
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
NGUYEN THI HOAI ANH
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
HOANG VAN THANH
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
DINH HAI DANG
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
VU VAN THUAN
Centre for Applied Research and Extension Silviculture, Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
DO THI HOAI THANH
Forest Industry Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
TRAN VAN DO *
Silviculture Research Institute, Vietnamese Academy of Forest Sciences, Hanoi, Vietnam.
*Author to whom correspondence should be addressed.
Abstract
Flowers of golden camellias have been used for human healthcare. Cutting propagation provides uniform plant materials with large genetic gains for higher production. The effects of cutting origin and exogenous hormone pretreatment on rooting were studied for golden camellia - Camellia kirinoi. The results showed that cuttings collected from plant stock grown in the garden of local people had significant higher rooting efficiency than cuttings collected from natural forest. Exogenous hormone types (IBA/Indole-3-butyric acid and IAA/Indole-3-acetic acid) and their different concentrations significantly affected rooting efficiency. Higher rooting efficiency was obtained with IBA, which resulted in the highest rooting percentage of 92% at 130 days of growth by using a concentration of 1.5% (by weight in powder). Hormone types and their concentrations also affected mean root length (MRL). The longest MRL was observed in IBA 1.5% with a length of 8.1 cm at 130 days of growth. It is concluded that cutting propagation should be used to produce seedlings for C. kirinoi. The stock plant should be planted and tended properly in a nursery for cutting production and IBA 1.5% in powder should be used for pretreatment. In addition, cutting management is controlled by the humidity of >95%, the temperature of <27oC, and shading direct sunlight of 30-35%.
Keywords: Auxin, cutting condition, healthcare value, indole-3-butyric acid, rooting efficiency