Introduction and imitative wild cultivation of Dendrobium nobile in north of Sichuan

Abstract:

To investigate whether it is adapted to cultivate in north of Sichuan, Dendrobium nobile from Hejiang was introduced to Qinba mountainous area. Two years after introduction, they were measured and evaluated under two imitative wild cultivation models, greenhouse and understory. The 98.73% of survival rates and average 1.41 shoot numbers per plant in stoneattached understory group were the highest. The length of stem and leaf were 9.5 cm and 7.2 cm in understory groups, while they were only 6.6 cm and 5.1 cm in greenhouse groups. The chlorophyll contents in oneyearold and twoyearold leaves were 37.3 SPAD and 26.3 SPAD in understory groups, respectively. While, there was no significant variance between them in greenhouse groups. The sunshineshading rates in understory groups didn’t show significant variances to that in greenhouse groups. But SD values of sunshineshading rates were 26.63 in understory groups and 13.31 in greenhouse groups. This experiment found that the best introduction time of Dendrobium nobile in north of Sichuan was spring per year. The conditions in understory were more suitable, and stoneattached understory cultivation was the best and low cost.